FreeCalypso > hg > fc-magnetite
annotate src/cs/drivers/drv_app/ffs/board/fsck.c @ 326:919b44c991fc
FCHG: reading of battery table from FFS implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 05 Dec 2017 05:04:09 +0000 |
parents | 945cf7f506b2 |
children | ba45f6514fb1 |
rev | line source |
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1 /****************************************************************************** |
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2 * Flash File System (ffs) |
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3 * Idea, design and coding by Mads Meisner-Jensen, mmj@ti.com |
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4 * |
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5 * FFS file system integrity checking, journalling, init and exit |
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6 * |
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7 * $Id: fsck.c 1.3.1.1.1.33 Thu, 08 Jan 2004 15:05:23 +0100 tsj $ |
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8 * |
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9 ******************************************************************************/ |
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10 |
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11 #ifndef TARGET |
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12 #include "ffs.cfg" |
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13 #endif |
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14 |
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15 #include <string.h> |
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16 #include <assert.h> |
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17 |
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18 #include "ffs/ffs.h" |
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19 #include "ffs/board/core.h" |
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20 #include "ffs/board/drv.h" |
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21 #include "ffs/board/ffstrace.h" |
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22 |
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23 /****************************************************************************** |
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24 * Functions |
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25 ******************************************************************************/ |
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26 |
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27 bref_t blocks_fsck(void); |
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28 iref_t inodes_fsck(void); |
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29 |
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30 /****************************************************************************** |
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31 * Init and Exit |
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32 ******************************************************************************/ |
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33 |
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34 effs_t ffs_initialize(void) |
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35 { |
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36 bref_t b; |
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37 struct inode_s *ip; |
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38 int i; |
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39 |
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40 tlw(led_set(0)); |
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41 tlw(led_on(LED_INIT)); |
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42 ttw(str(TTrInit, "initialize {" NL)); |
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43 tw(tr(TR_BEGIN, TrFsck, "ffs_initialize() {\n")); |
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44 |
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45 // default to non-initialized ffs |
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46 fs.root = 0; |
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47 fs.debug[0] = fs.debug[1] = fs.debug[2] = fs.debug[3] = 0; |
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48 fs.testflags = 0; |
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49 |
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50 tlw(led_on(LED_DRV_INIT)); |
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51 fs.initerror = ffsdrv_init(); // read manufacturer and device ID |
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52 tlw(led_off(LED_DRV_INIT)); |
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53 if (fs.initerror < 0) { |
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54 tlw(led_off(0)); |
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55 tw(tr(TR_END, TrFsck, "} %d\n", fs.initerror)); |
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56 ttw(ttr(TTrInit, "} %d" NL, fs.initerror)); |
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57 return fs.initerror; |
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58 } |
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59 |
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60 for (i = 0; i < 2; i++) |
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61 { |
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62 tlw(led_on(LED_BLOCKS_FSCK)); |
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63 fs.initerror = EFFS_INVALID; |
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64 fs.initerror = b = blocks_fsck(); |
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65 tlw(led_off(LED_BLOCKS_FSCK)); |
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66 if (fs.initerror < 0) { |
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67 tlw(led_off(0)); |
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68 tw(tr(TR_END, TrFsck, "} %d\n", fs.initerror)); |
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69 ttw(ttr(TTrInit, "} %d" NL, fs.initerror)); |
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70 return fs.initerror; |
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71 } |
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72 |
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73 tlw(led_on(LED_INODES_FSCK)); |
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74 fs.initerror = EFFS_INVALID; |
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75 fs.initerror = inodes_fsck(); |
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76 tlw(led_off(LED_INODES_FSCK)); |
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77 if (fs.initerror < 0) { |
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78 tlw(led_off(0)); |
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79 tw(tr(TR_END, TrFsck, "} %d\n", fs.initerror)); |
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80 ttw(ttr(TTrInit, "} %d" NL, fs.initerror)); |
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81 return fs.initerror; |
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82 } |
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83 |
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84 // parse the fs options in the root inode's name |
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85 ip = inode_addr(fs.root); |
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86 fs_params_init(addr2name(offset2addr(location2offset(ip->location)))); |
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87 |
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88 if ((fs.initerror = journal_init(fs.ijournal)) == 0) |
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89 break; |
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90 } |
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91 |
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92 // Init all file_descriptors to zero |
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93 memset(fs.fd, 0, sizeof(struct file_descriptor_s) * fs.fd_max); |
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94 |
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95 // If blocks_fsck() found a block that needs cleaning, we do it, now |
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96 // that all the file system has been initialized. |
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97 if (b > 0) { |
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98 block_clean(b - 1); |
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99 block_free(b - 1); |
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100 } |
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101 |
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102 statistics_init(); |
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103 |
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104 // In target, we do this before entering the task event loop... |
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105 // Otherwise we would in some cases impose a long reboot delay if we did |
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106 // it here. If we test in target it is nessesary to call |
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107 // blocks_reclaim() anyway because we re-init ffs. |
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108 |
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109 #if (TARGET == 1) //NOTEME: can this be done in another/better way? |
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110 #if (WITH_TFFS == 1) |
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111 blocks_reclaim(); |
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112 #endif |
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113 #else |
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114 blocks_reclaim(); |
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115 #endif |
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116 tlw(led_off(LED_INIT)); |
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117 tw(tr(TR_END, TrFsck, "} %d\n", EFFS_OK)); |
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118 ttw(str(TTrInit, "} 0" NL)); |
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119 |
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120 return EFFS_OK; |
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121 } |
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122 |
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123 void fs_params_init(const char *p) |
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124 { |
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125 uint8 opt, digit; |
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126 uint32 n; |
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127 int numdatablocks; |
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128 |
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129 tw(tr(TR_BEGIN, TrFsck, "fsparams_init('%s') {\n", p)); |
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130 |
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131 // Compiled default values |
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132 fs.filename_max = FFS_FILENAME_MAX; |
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133 fs.path_depth_max = FFS_PATH_DEPTH_MAX; |
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134 fs.fd_max = FFS_FD_MAX; |
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135 fs.journal_size = FFS_JOURNAL_SIZE_IN256THS; |
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136 fs.flags = 0; |
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137 fs.testflags = 0; |
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138 |
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139 // Flag that it not has been changed by an input arg. |
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140 fs.block_files_max = 0; |
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141 |
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142 // The default lost bytes percentage of a block before it is reclaimed |
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143 // is approx. 90%. |
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144 fs.lost_threshold = (256 - 256/10); |
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145 |
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146 // If we only have two blocks, we cannot make any reclaims and thus we |
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147 // have a write-once FFS system. |
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148 fs.blocks_free_min = (dev.numblocks > 2 ? 1 : 0); |
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149 |
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150 // Don't count free and inodes blocks |
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151 numdatablocks = dev.numblocks - fs.blocks_free_min - 1; |
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152 |
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153 // Abselute max number of inodes. |
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154 fs.inodes_max = dev.blocksize / sizeof(struct inode_s); |
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155 if (fs.inodes_max > FFS_INODES_MAX) |
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156 fs.inodes_max = FFS_INODES_MAX; |
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157 |
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158 // MUST be true: objects_max <= inodes_max - block_files_max, this is do |
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159 // to the fact that we always need to have block_files_max number of |
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160 // inodes left when we run a data reclaim. |
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161 fs.objects_max = fs.inodes_max / 2; |
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162 |
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163 // Find a suitable chunk_size |
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164 if (dev.numblocks*dev.blocksize > 1024*1024) |
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165 fs.chunk_size_max = 8192; |
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166 else |
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167 fs.chunk_size_max = (2048 > (dev.blocksize / 8) |
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168 ? (dev.blocksize / 8) |
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169 : 2048); |
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170 fs.fd_buf_size = fs.chunk_size_max; |
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171 |
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172 fs.journal_size = fs.journal_size * dev.blocksize / 256; |
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173 if (fs.journal_size < FFS_JOURNAL_SIZE_MIN) |
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174 fs.journal_size = FFS_JOURNAL_SIZE_MIN; |
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175 |
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176 // Set it just below the same amount as entries in one journal file |
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177 fs.block_files_max = (fs.journal_size / sizeof(struct journal_s) |
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178 - FFS_JOURNAL_MARGIN - 2); |
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179 |
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180 // MUST be true: block_files_max < objects_max / 2. But if we want |
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181 // to reach objects_max must block_files_max >= objects_max / number |
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182 // of datablocks, however a big block_files_max require higher |
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183 // reserved_space. |
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184 if (fs.block_files_max > fs.objects_max / 2) |
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185 fs.block_files_max = fs.objects_max / 2 - 4; |
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186 |
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187 // Are we able to reach objects_max? If not then lower the number |
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188 if (fs.objects_max > numdatablocks * fs.block_files_max) |
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189 fs.objects_max = numdatablocks * fs.block_files_max + 10; |
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190 |
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191 // Absolute minimum is RESERVED_LOW the rest is 'workspace' which is |
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192 // needed to have a reasonable performance. |
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193 fs.reserved_space = dev.blocksize / 2 + |
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194 numdatablocks * dev.blocksize / 16 + RESERVED_LOW; |
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195 |
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196 // skip to first char following second slash in name |
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197 n = 0; |
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198 while (*p) { |
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199 if (*p++ == '/') { |
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200 n++; |
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201 if (n == 2) |
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202 break; |
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203 } |
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204 } |
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205 if (n == 2) { |
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206 // while still options to process... |
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207 while (*p) { |
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208 opt = *p++; // save option letter for later |
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209 // collect option value... |
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210 n = 0; |
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211 while ((digit = *p)) { |
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212 if (digit >= '0' && digit <= '9') { |
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213 n = 10 * n + digit - '0'; |
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214 p++; |
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215 } |
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216 else |
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217 break; |
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218 } |
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219 switch (opt) { |
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220 case 'b': dev.numblocks = n; break; |
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221 case 'm': fs.blocks_free_min = n; break; |
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222 case 'i': fs.inodes_max = n; break; |
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223 case 'o': fs.objects_max = n; break; |
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224 case 'n': fs.filename_max = n; break; |
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225 case 'f': fs.block_files_max = n; break; |
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226 case 'd': fs.fd_max = n; break; |
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227 case 's': fs.fd_buf_size = n; break; |
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228 case 't': fs.lost_threshold = n; break; |
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229 case 'z': fs.flags = n; break; |
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230 case 'j': fs.journal_size = n; break; |
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231 case 'c': fs.chunk_size_max = n; break; |
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232 case 'r': fs.reserved_space = n; break; |
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233 // d = &fs.path_depth_max; // really necessary? |
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234 default: |
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235 break; |
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236 } |
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237 } |
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238 } |
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239 |
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240 // Now recompute a few parameters based on adjusted values. |
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241 |
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242 // No journal file thuse no reserved space. |
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243 if (fs.journal_size == 0) { |
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244 fs.block_files_max = fs.objects_max / 2; |
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245 fs.reserved_space = 0; |
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246 fs.block_files_reserved = 0; |
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247 } |
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248 |
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249 else { |
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250 // If journal size is less than minimum must it have been changed by an |
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251 // input arg, recalculate. |
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252 if (fs.journal_size < FFS_JOURNAL_SIZE_MIN) |
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253 fs.journal_size = fs.journal_size * dev.blocksize / 256; |
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254 |
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255 if (fs.reserved_space < RESERVED_LOW) |
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256 fs.reserved_space = fs.reserved_space * dev.blocksize / 256; |
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257 |
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258 // Only one reserved is needed however we want a margin and set it to two |
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259 fs.block_files_reserved = 2; |
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260 } |
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261 |
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262 // Don't count free blocks, inode block, reserved space, block headers |
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263 // and the size of one filename. |
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264 fs.filesize_max = numdatablocks * dev.blocksize - fs.reserved_space - |
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265 numdatablocks * BHEADER_SIZE - FFS_FILENAME_MAX; |
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266 |
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267 // Furthermore don't count the overhead from each chunk (alignment) |
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268 fs.filesize_max -= ((fs.filesize_max / fs.chunk_size_max) * dev.atomsize |
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269 + dev.atomsize); |
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270 |
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271 // NOTEME: chunk_size_min is never used |
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272 fs.chunk_size_min = numdatablocks / fs.objects_max; |
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273 |
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274 tw(tr(TR_FUNC, TrFsck, "dev.numblocks = %d\n", dev.numblocks)); |
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275 tw(tr(TR_FUNC, TrFsck, "fs.blocks_free_min = %d\n", fs.blocks_free_min)); |
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276 tw(tr(TR_FUNC, TrFsck, "fs.inodes_max = %d\n", fs.inodes_max)); |
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277 tw(tr(TR_FUNC, TrFsck, "fs.objects_max = %d\n", fs.objects_max)); |
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278 tw(tr(TR_FUNC, TrFsck, "fs.block_files_max = %d\n", fs.block_files_max)); |
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279 tw(tr(TR_FUNC, TrFsck, "fs.block_files_reserved = %d\n", fs.block_files_reserved)); |
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280 tw(tr(TR_FUNC, TrFsck, "fs.chunk_size_max = %d\n", fs.chunk_size_max)); |
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281 tw(tr(TR_FUNC, TrFsck, "fs.filename_max = %d\n", fs.filename_max)); |
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282 tw(tr(TR_FUNC, TrFsck, "fs.lost_threshold = %d\n", fs.lost_threshold)); |
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283 tw(tr(TR_FUNC, TrFsck, "fs.path_depth_max = %d\n", fs.path_depth_max)); |
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284 tw(tr(TR_FUNC, TrFsck, "fs.journal_size = %d\n", fs.journal_size)); |
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285 tw(tr(TR_FUNC, TrFsck, "fs.reserved_space = %d\n", fs.reserved_space)); |
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286 tw(tr(TR_FUNC, TrFsck, "fs.fd_max = %d\n", fs.fd_max)); |
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287 tw(tr(TR_FUNC, TrFsck, "fs.fd_buf_size = 0x%02x\n", fs.fd_buf_size)); |
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288 tw(tr(TR_FUNC, TrFsck, "fs.flags = 0x%02x\n", fs.flags)); |
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289 tw(tr(TR_END, TrFsck, "}\n")); |
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290 } |
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291 |
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292 // TODO: Finish pending commits/writes. |
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293 effs_t ffs_exit(void) |
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294 { |
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295 tw(tr(TR_FUNC, TrFsck, "exit() 0\n")); |
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296 |
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297 |
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298 return EFFS_OK; |
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299 } |
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300 |
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301 #if 0 // Not used in this version |
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302 // Purely for core internal use; Read a file. |
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303 effs_t file_read_int(const char *path, void *src, int size) |
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304 { |
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305 if (fs.initerror != EFFS_OK) |
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306 return fs.initerror; |
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307 |
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308 return object_read(path, src, size, 0); |
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309 } |
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310 |
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311 // Purely for core internal use; Update a file. |
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312 effs_t file_update(const char *path, void *src, int size) |
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313 { |
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314 char *name; |
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315 iref_t i, dir; |
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316 |
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317 if (fs.initerror != EFFS_OK) |
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318 return fs.initerror; |
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319 |
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320 if ((i = object_lookup(path, &name, &dir)) < 0) |
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321 return i; |
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322 |
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323 journal_begin(i); |
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324 |
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325 if ((i = object_create(name, src, size, -dir)) < 0) |
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326 return i; |
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327 |
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328 journal_end(0); |
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329 |
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330 return EFFS_OK; |
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331 } |
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332 #endif |
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333 |
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334 /****************************************************************************** |
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335 * blocks_fsck() |
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336 ******************************************************************************/ |
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337 |
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338 blocksize_t block_used(bref_t b) |
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339 { |
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340 blocksize_t used; |
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341 uint32 *p, *q; |
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342 |
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343 tlw(led_toggle(LED_BLOCKS_FSCK)); |
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344 |
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345 // We search backwards through block to find the last used byte and |
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346 // thus the total number of used bytes. Note that this code depends |
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347 // on the fact that an erased flash location is 0xFF! |
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348 p = (uint32 *) offset2addr(dev.binfo[b].offset); |
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349 for (q = p + dev.blocksize/4 - 4; q > p; q -= 4) { |
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350 if ( ~(q[0] & q[1] & q[2] & q[3]) ) |
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351 break; |
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352 } |
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353 |
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354 if ( ~(q[0] & q[1] & q[2] & q[3]) ) |
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355 q += 4; |
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356 used = atomalign((char *) q - (char *) p); |
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357 |
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358 tw(tr(TR_FUNC, TrFsckLow, "ffs_block_used(%d) %d\n", b, used)); |
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359 |
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360 return used; |
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361 } |
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362 |
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363 |
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364 age_t age_distance(age_t x, age_t y) |
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365 { |
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366 age_t a = x - y; |
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367 |
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368 if (a > 0x8000) |
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369 a = -a; |
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370 |
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371 tw(tr(TR_FUNC, TrFsckLow, "age_distance(%d, %d) %d\n", x, y, a)); |
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372 |
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373 return a; |
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374 } |
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375 |
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376 // For each ffs block, we initialise the basic bstat array information, |
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377 // namely the number of used bytes. Also, we locate the inodes block and if |
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378 // a previous operation was interrupted by a powerfail, we clean it up. |
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379 // |
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380 // We return EFFS_OK if all is fine. If a positive integer is returned, it |
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381 // denotes a block that needs to be cleaned by block_clean() once FFS |
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382 // has been properly intialized (we actually return the block number + 1 |
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383 // because otherwise it would clash with EFFS_OK return code). If no inodes |
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384 // block is found or another error occurs, we return the error code. |
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385 bref_t blocks_fsck(void) |
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386 { |
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387 bref_t b, b_to_clean, b_inode_lost; |
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388 int age_valid; |
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389 age_t age_min, age_max, age_dist, age_dist_min, age_dist_max; |
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390 struct block_header_s *bhp; |
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391 struct block_header_old_s *obhp; |
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392 |
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393 ttw(str(TTrInitLow, "blocks_fsck {" NL)); |
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394 tw(tr(TR_BEGIN, TrFsck, "blocks_fsck() {\n")); |
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395 |
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396 // initialize ages to the illegal/unset value |
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397 age_min = age_max = age_dist = 0; |
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398 |
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399 fs.format = 0; |
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400 fs.inodes = -1; |
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401 fs.newinodes = -1; |
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402 b_inode_lost = -1; |
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403 b_to_clean = EFFS_OK; |
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404 |
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405 for (b = 0; b < dev.numblocks; b++) |
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406 { |
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407 tlw(led_toggle(LED_DRV_INIT)); |
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408 |
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409 // read block flags from flash |
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410 bhp = (struct block_header_s *) offset2addr(dev.binfo[b].offset); |
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411 obhp = (struct block_header_old_s *) bhp; |
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412 |
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413 bstat[b].used = dev.blocksize; |
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414 bstat[b].lost = bstat[b].used; |
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415 bstat[b].flags = bhp->flags; |
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416 bstat[b].objects = 0; |
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417 |
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418 age_valid = 0; |
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419 |
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420 if (bhp->magic_low != BLOCK_MAGIC_LOW || |
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421 bhp->magic_high != BLOCK_MAGIC_HIGH) { |
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422 // The block magic as bad! It *could* be because the flash |
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423 // memory map is incorrect or because another application has |
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424 // spuriously written to the flash or ... who knows what. First |
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425 // we check to see if the reason is that we are dealing with a |
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426 // (really) old ffs format version. |
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427 if (obhp->magic_low == OLD_BLOCK_MAGIC_LOW && |
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428 obhp->magic_high == OLD_FFS_FORMAT_VERSION) { |
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429 tw(tr(TR_FUNC, TrFsck, "OLD ")); |
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430 fs.format = obhp->magic_high; |
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431 // We simulate that all the blocks are data blocks, in order |
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432 // to have some well-defined state that preformat() can work |
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433 // on. Later we will return EFFS_BADFORMAT and otherwise |
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434 // leave everything as it is, *without* modifying anything! |
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|
435 bstat[b].flags = BF_IS_DATA; |
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diff
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|
436 } |
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parents:
diff
changeset
|
437 else { |
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parents:
diff
changeset
|
438 // Quickly test if block is in empty state. We do not make a |
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parents:
diff
changeset
|
439 // full check with block_used() because that takes too |
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parents:
diff
changeset
|
440 // long --- we let preformat() do that. |
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parents:
diff
changeset
|
441 if (bhp->magic_low == FLASH_NULL16 && |
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parents:
diff
changeset
|
442 bhp->magic_high == FLASH_NULL16 && |
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parents:
diff
changeset
|
443 bhp->age == FLASH_NULL16 && |
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parents:
diff
changeset
|
444 bhp->version == FLASH_NULL16 && |
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parents:
diff
changeset
|
445 bhp->flags == FLASH_NULL16) |
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parents:
diff
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|
446 { |
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parents:
diff
changeset
|
447 bstat[b].used = 0; |
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parents:
diff
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|
448 bstat[b].lost = 0; |
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parents:
diff
changeset
|
449 bstat[b].flags = BF_IS_EMPTY; |
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parents:
diff
changeset
|
450 tw(tr(TR_FUNC, TrFsck, "EMPTY ")); |
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parents:
diff
changeset
|
451 } |
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parents:
diff
changeset
|
452 else { |
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parents:
diff
changeset
|
453 // If the block is not free, it is probably corrupted. |
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parents:
diff
changeset
|
454 // Thus we reset its age and free it. |
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parents:
diff
changeset
|
455 tw(tr(TR_FUNC, TrFsck, "magic = 0x%08x\n", |
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parents:
diff
changeset
|
456 bhp->magic_low | (bhp->magic_high << 16))); |
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parents:
diff
changeset
|
457 ffsdrv.write_halfword(&bhp->age, 0); |
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parents:
diff
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|
458 block_free(b); |
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parents:
diff
changeset
|
459 tw(tr(TR_FUNC, TrFsck, "BAD ")); |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
460 } |
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parents:
diff
changeset
|
461 } |
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parents:
diff
changeset
|
462 } |
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parents:
diff
changeset
|
463 else { |
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parents:
diff
changeset
|
464 fs.format = bhp->version; |
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parents:
diff
changeset
|
465 age_valid = 1; |
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parents:
diff
changeset
|
466 |
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parents:
diff
changeset
|
467 if (!is_block(b, BF_IS_FREE)) { |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
468 bstat[b].used = block_used(b); |
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parents:
diff
changeset
|
469 bstat[b].lost = bstat[b].used - BHEADER_SIZE; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
470 } |
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parents:
diff
changeset
|
471 |
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parents:
diff
changeset
|
472 if (is_block(b, BF_IS_FREE)) { |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
473 // The only case where we do not call block_used() is |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
474 // when the block is truly free. |
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parents:
diff
changeset
|
475 bstat[b].used = 0; |
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parents:
diff
changeset
|
476 bstat[b].lost = 0; |
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parents:
diff
changeset
|
477 tw(tr(TR_FUNC, TrFsck, "FREE ")); |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
478 ttw(ttr(TTrInitLow, "FREE" NL)); |
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parents:
diff
changeset
|
479 |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
480 } |
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parents:
diff
changeset
|
481 else if (is_block(b, BF_IS_DATA)) { |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
482 tw(tr(TR_FUNC, TrFsck, "DATA ")); |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
483 ttw(ttr(TTrInitLow, "DATA" NL)); |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
484 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
485 else if (is_block(b, BF_IS_CLEANING)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
486 // Here we schedule a block_clean(). Note that we can |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
487 // and do not execute the block cleaning now, as the info |
945cf7f506b2
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parents:
diff
changeset
|
488 // that block_clean() needs is not at all ready at this |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
489 // point in the initialization. So we set a flag and then |
945cf7f506b2
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parents:
diff
changeset
|
490 // clean the block at the end of ffs_initialize() |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
491 tw(tr(TR_FUNC, TrFsck, "CLEANING ")); |
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src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
492 ttw(ttr(TTrInitLow, "CLEANING" NL)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
493 b_to_clean = b + 1; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
494 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
495 else if (is_block(b, BF_IS_COPYING)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
496 tw(tr(TR_FUNC, TrFsck, "COPYING ")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
497 ttw(ttr(TTrInitLow, "COPYING" NL)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
498 fs.newinodes = b; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
499 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
500 else if (is_block(b, BF_IS_INODES)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
501 tw(tr(TR_FUNC, TrFsck, "INODES ")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
502 ttw(ttr(TTrInitLow, "INODES" NL)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
503 fs.inodes = b; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
504 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
505 else if (is_block(b, BF_IS_INODES_LOST)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
506 tw(tr(TR_FUNC, TrFsck, "INODESLOST")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
507 ttw(ttr(TTrInitLow, "INODESLOST" NL)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
508 b_inode_lost = b; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
509 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
510 else { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
511 block_free(b); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
512 tw(tr(TR_FUNC, TrFsck, "INVALID ")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
513 ttw(ttr(TTrInitLow, "INVALID" NL)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
514 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
515 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
516 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
517 tw(tr(TR_NULL, TrFsck, " %2d: (0x%05x) %02x, used = %6d\n", |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
518 b, dev.binfo[b].offset, bstat[b].flags & 0xFF, bstat[b].used)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
519 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
520 if (age_valid) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
521 if (age_min == 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
522 // Initialize minimum and maximum block ages |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
523 age_min = age_max = bhp->age; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
524 tw(tr(TR_FUNC, TrFsckLow, "age_min/max = %d\n", age_min)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
525 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
526 else { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
527 age_dist_min = age_distance(bhp->age, age_min); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
528 age_dist_max = age_distance(bhp->age, age_max); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
529 if (age_dist_min > age_dist || |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
530 age_dist_max > age_dist) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
531 if (age_dist_max > age_dist_min) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
532 age_dist = age_dist_max; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
533 age_min = bhp->age; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
534 tw(tr(TR_FUNC, TrFsckLow, "age_min = %d (dist = %d)\n", |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
535 age_min, age_dist)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
536 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
537 else { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
538 age_dist = age_dist_min; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
539 age_max = bhp->age; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
540 tw(tr(TR_FUNC, TrFsckLow, "age_max = %d (dist = %d)\n", |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
541 age_max, age_dist)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
542 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
543 } |
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544 } |
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545 } |
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546 } |
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547 tlw(led_off(LED_DRV_INIT)); |
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548 tw(tr(TR_FUNC, TrFsck, "age min, max, max-min = %d, %d, %d\n", |
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549 age_min, age_max, (uint16) (age_max-age_min))); |
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550 // If age_max is untouched is is because all blocks were in the 'Empty' |
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551 // state. In this case we let the age be as it is (0xFFFF). |
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552 if (age_max == 0) |
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553 age_max = age_min = BLOCK_AGE_MAX; |
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554 |
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555 // Handle age wrap around thus ensuring fs.age_max is set correctly. We |
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556 // have to type-cast the whole computation, otherwise it will be |
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557 // incorrect. |
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parents:
diff
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558 if ((age_t) (age_max - age_min) > 0x8000) { |
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559 age_dist = age_max; |
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560 age_max = age_min; |
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561 age_min = age_dist; |
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562 } |
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563 |
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564 // save maximum age found for the case of a bad block that is going to |
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565 // be reclaimed later on by blocks_reclaim() |
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566 fs.age_max = age_max; |
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567 |
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568 tw(tr(TR_FUNC, TrFsck, "fs.format = 0x%04x\n", fs.format)); |
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569 tw(tr(TR_FUNC, TrFsck, "fs.inodes, newinodes = %d, %d\n", |
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570 fs.inodes, fs.newinodes)); |
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571 ttw(ttr(TTrInit, "fs.inodes, newinodes = %d, %d" NL, |
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572 fs.inodes, fs.newinodes)); |
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573 tw(tr(TR_FUNC, TrFsck, "age min, max = %d, %d\n", age_min, age_max)); |
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574 |
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575 // If any blocks were in the EMPTY state, now is the time to bring them |
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576 // into the FREE state. Note that we must only do this *after* |
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577 // fs.age_max has been initialized. |
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578 for (b = 0; b < dev.numblocks; b++) { |
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579 if (is_block(b, BF_IS_EMPTY)) { |
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580 if ((bstat[b].used = block_used(b)) == 0) |
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|
581 block_preformat(b, 0); |
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parents:
diff
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|
582 else |
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|
583 block_free(b); |
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584 } |
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|
585 } |
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586 |
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|
587 if (fs.inodes >= 0) { |
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parents:
diff
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588 // The 'old' inode block is still valid thus we keep it. |
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589 if (fs.newinodes >= 0) |
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590 // The copying of inodes to the new block was not finished thus |
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parents:
diff
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|
591 // we free the block |
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parents:
diff
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592 block_free(fs.newinodes); |
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|
593 inodes_set(fs.inodes); |
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|
594 } |
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|
595 else { |
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diff
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|
596 // Copying must have been finished |
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parents:
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597 if (fs.newinodes >= 0 && b_inode_lost >= 0) { |
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|
598 // The inode reclaim did finish but currently there is no valid |
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parents:
diff
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|
599 // inode block thus the operation must be finished by committing |
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parents:
diff
changeset
|
600 // the new block as the valid inode block. |
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diff
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|
601 fs.inodes = b_inode_lost; |
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diff
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|
602 block_commit(); |
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|
603 |
945cf7f506b2
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diff
changeset
|
604 } |
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|
605 else { |
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diff
changeset
|
606 // No old or new Inode block! |
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diff
changeset
|
607 tw(tr(TR_END, TrFsck, "} %d\n", EFFS_NOFORMAT)); |
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diff
changeset
|
608 ttw(ttr(TTrInitLow, "} %d" NL, EFFS_NOFORMAT)); |
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diff
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|
609 return EFFS_NOFORMAT; |
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diff
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|
610 } |
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diff
changeset
|
611 } |
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diff
changeset
|
612 |
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diff
changeset
|
613 if ((fs.format >> 8) != (FFS_FORMAT_VERSION >> 8)) { |
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diff
changeset
|
614 tw(tr(TR_END, TrFsck, "} %d\n", EFFS_BADFORMAT)); |
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diff
changeset
|
615 ttw(ttr(TTrInitLow, "} %d" NL, EFFS_BADFORMAT)); |
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diff
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|
616 return EFFS_BADFORMAT; |
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diff
changeset
|
617 } |
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diff
changeset
|
618 |
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diff
changeset
|
619 // FIXME: Insert age sanity check; age distance must not be too big (> 2 |
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parents:
diff
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|
620 // * FFS_AGE_DISTANCE)? |
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diff
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|
621 |
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diff
changeset
|
622 tw(tr(TR_END, TrFsck, "} %d\n", b_to_clean)); |
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diff
changeset
|
623 ttw(ttr(TTrInitLow, "} %d" NL, b_to_clean)); |
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diff
changeset
|
624 |
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diff
changeset
|
625 return b_to_clean; |
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diff
changeset
|
626 } |
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parents:
diff
changeset
|
627 |
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diff
changeset
|
628 // Set fs.inodes and fs.inodes_addr |
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diff
changeset
|
629 void inodes_set(iref_t i) |
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diff
changeset
|
630 { |
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diff
changeset
|
631 fs.inodes = i; |
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diff
changeset
|
632 fs.inodes_addr = (struct inode_s *) |
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parents:
diff
changeset
|
633 (offset2addr(dev.binfo[fs.inodes].offset) |
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parents:
diff
changeset
|
634 + dev.atomsize - sizeof(struct inode_s)); |
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parents:
diff
changeset
|
635 } |
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diff
changeset
|
636 |
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diff
changeset
|
637 |
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diff
changeset
|
638 /****************************************************************************** |
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diff
changeset
|
639 * inodes_fsck() |
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diff
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|
640 ******************************************************************************/ |
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diff
changeset
|
641 |
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parents:
diff
changeset
|
642 // Now for each inode in the inodes block, update the bstat array |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
643 // information: free, used, objects. Also, locate the root inode. We could |
945cf7f506b2
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parents:
diff
changeset
|
644 // optimize this a little, because bstat[binodes].used gives an inidication |
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parents:
diff
changeset
|
645 // of how many inodes are actually present in the system. |
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parents:
diff
changeset
|
646 iref_t inodes_fsck(void) |
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diff
changeset
|
647 { |
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parents:
diff
changeset
|
648 iref_t i; |
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diff
changeset
|
649 struct inode_s *ip; |
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diff
changeset
|
650 char *addr; |
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diff
changeset
|
651 bref_t block; |
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parents:
diff
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652 |
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653 ttw(str(TTrInitLow, "inodes_fsck {" NL)); |
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654 tw(tr(TR_BEGIN, TrFsck, "inodes_fsck() {\n")); |
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diff
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655 tw(tr(TR_FUNC, TrFsck, "inodes in block %d:\n", fs.inodes)); |
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diff
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|
656 |
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657 // the fields of the bstat entry for the inodes have the meaning: |
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diff
changeset
|
658 // used = total number of used inodes (valid, erased, invalid) |
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diff
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659 // lost = total number of lost inodes (erased, invalid) |
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diff
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|
660 // objects = index of first free inode (used by inode_alloc()) |
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parents:
diff
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|
661 |
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changeset
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662 fs.root = 0; // default to root inode not found |
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diff
changeset
|
663 fs.ijournal = 0; // default to journal file inode not found |
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diff
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|
664 bstat[fs.inodes].objects = 1; |
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diff
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|
665 bstat[fs.inodes].used = 0; |
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|
666 bstat[fs.inodes].lost = 0; |
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diff
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|
667 fs.sequence = 0; // just for debug (fun) |
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parents:
diff
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|
668 |
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diff
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|
669 // we must set some default value for this, so we set it to max possible! |
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diff
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670 fs.inodes_max = dev.blocksize / sizeof(struct inode_s); |
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parents:
diff
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|
671 |
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|
672 ip = inode_addr(1); |
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diff
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|
673 tw(tr(TR_FUNC, TrFsck, " i addr cld sib seq upd flag size name\n")); |
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diff
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674 for (i = 1; i < fs.inodes_max; i++, ip++) |
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675 { |
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diff
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|
676 // just for debug (fun) |
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diff
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|
677 if (ip->sequence > fs.sequence) |
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diff
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|
678 fs.sequence = ip->sequence; |
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diff
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|
679 |
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|
680 // compute block index and total data space occupied |
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|
681 block = offset2block(location2offset(ip->location)); |
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diff
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|
682 |
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diff
changeset
|
683 // Only scan used inodes. blocks_fsck() accounted all used space as |
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parents:
diff
changeset
|
684 // also being lost space, so now we subtract from the lost space, |
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parents:
diff
changeset
|
685 // the space used by valid objects |
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parents:
diff
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|
686 if (ip->location != FLASH_NULL32) |
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parents:
diff
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|
687 { |
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parents:
diff
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|
688 bstat[fs.inodes].used++; |
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parents:
diff
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|
689 |
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parents:
diff
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|
690 tw(tr(TR_FUNC, TrFsck, "%3d 0x%05X %3d %3d %4d %3d %s%s%s%s%s%s %6d %s\n", |
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parents:
diff
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|
691 i, |
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parents:
diff
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|
692 location2offset(ip->location), |
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parents:
diff
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|
693 ip->child, ip->sibling, |
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parents:
diff
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|
694 ip->sequence, ip->updates, |
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parents:
diff
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|
695 is_object(ip, OT_DIR) ? "d" : "", |
945cf7f506b2
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parents:
diff
changeset
|
696 is_object(ip, OT_LINK) ? "l" : "", |
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diff
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|
697 is_object(ip, OT_FILE) ? "f" : "", |
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diff
changeset
|
698 is_object(ip, OT_SEGMENT) ? "s" : "", |
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parents:
diff
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|
699 is_object(ip, OT_ERASED) ? " " : "", |
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diff
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|
700 IS_BIT_SET(ip->flags, OF_READONLY) && !is_object(ip, OT_ERASED) ? |
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parents:
diff
changeset
|
701 "r" : " ", |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
702 ip->size, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
703 // Erased chunks do not have any name so we can not trace erased objects! |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
704 (ip->size && !is_object(ip, OT_SEGMENT) && !is_object(ip, OT_ERASED) ? |
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src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
705 addr2name(offset2addr(location2offset(ip->location))) : "") |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
706 )); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
707 |
945cf7f506b2
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parents:
diff
changeset
|
708 if (is_object_valid(ip)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
709 // This inode is valid, so we account the data space as used |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
710 // and the inode as used too. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
711 bstat[block].lost -= ip->size; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
712 bstat[block].objects++; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
713 // test if this is the root inode. store index if it is. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
714 if (!is_object(ip, OT_SEGMENT)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
715 addr = addr2name(offset2addr(location2offset(ip->location))); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
716 if (*addr == '/') |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
717 fs.root = i; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
718 else if (*addr == '.' && |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
719 ffs_strcmp(addr, FFS_JOURNAL_NAME) == 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
720 fs.ijournal = i; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
721 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
722 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
723 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
724 else if (is_object(ip, OT_ERASED)) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
725 // this inode's data is deleted, so we account the data |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
726 // space as used and lost and the inode as lost too. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
727 bstat[fs.inodes].lost++; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
728 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
729 else { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
730 // This is an invalid object, so we account the data space |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
731 // as used and lost and the inode as lost too. NOTEME: error |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
732 // what should we do? Perhaps we should record semi-lost |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
733 // inodes? Can we safely account for it here if this is an |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
734 // object to be recovered because another inode.copied is |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
735 // referring to this? Will used/lost etc. be updated |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
736 // correctly then? |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
737 bstat[fs.inodes].lost++; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
738 tw(tr(TR_NULL, TrFsck, "(invalid = %d)\n", ip->flags & OT_MASK)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
739 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
740 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
741 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
742 ttw(ttr(TTrInit, "fs.root=%d, journal=%d" NL, fs.root, fs.ijournal)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
743 tw(tr(TR_END, TrFsck, "} used: %d, lost: %d, root: %d, journal: %d\n", |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
744 bstat[fs.inodes].used, bstat[fs.inodes].lost, fs.root, fs.ijournal)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
745 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
746 fs.sequence++; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
747 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
748 tw(tr_bstat()); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
749 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
750 if (fs.root == 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
751 ttw(ttr(TTrInitLow, "} %d" NL, EFFS_NOFORMAT)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
752 return EFFS_NOFORMAT; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
753 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
754 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
755 ttw(str(TTrInitLow, "} 0" NL)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
756 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
757 return EFFS_OK; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
758 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
759 |
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parents:
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|
760 |
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diff
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|
761 /****************************************************************************** |
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parents:
diff
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|
762 * Preformat and format |
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diff
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|
763 ******************************************************************************/ |
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764 |
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parents:
diff
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|
765 // Prepare all blocks for fs_format(). Because ffs_is_formattable() has |
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diff
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|
766 // already been called prior to this function, we know that no sector erase |
945cf7f506b2
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parents:
diff
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|
767 // is in progress! The blocks are prepared by putting them into the 'Free' |
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parents:
diff
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|
768 // state. |
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parents:
diff
changeset
|
769 effs_t fs_preformat(void) |
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parents:
diff
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|
770 { |
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parents:
diff
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|
771 bref_t b; |
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parents:
diff
changeset
|
772 |
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parents:
diff
changeset
|
773 ttw(str(TTrFormat, "preformat {" NL)); |
945cf7f506b2
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parents:
diff
changeset
|
774 tw(tr(TR_BEGIN, TrFormat, "fs_preformat() {\n")); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
775 |
945cf7f506b2
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parents:
diff
changeset
|
776 // Mark ffs as being non-formatted from now on. |
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parents:
diff
changeset
|
777 fs.root = 0; |
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parents:
diff
changeset
|
778 |
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parents:
diff
changeset
|
779 // We must initialize bstat[fs.inodes].used and inodes_high, such that |
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parents:
diff
changeset
|
780 // inodes_reclaim() isn't triggered in reclaim() on the following |
945cf7f506b2
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parents:
diff
changeset
|
781 // fs_format(). |
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parents:
diff
changeset
|
782 inodes_set(0); |
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parents:
diff
changeset
|
783 bstat[fs.inodes].used = 0; |
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parents:
diff
changeset
|
784 bstat[fs.inodes].lost = 0; |
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parents:
diff
changeset
|
785 bstat[fs.inodes].objects = 0; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
786 |
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parents:
diff
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|
787 // While format is in progress, we make FFS inaccessible to other |
945cf7f506b2
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parents:
diff
changeset
|
788 // functions... |
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src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
789 fs.initerror = EFFS_NOFORMAT; |
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parents:
diff
changeset
|
790 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
791 if (dev.manufact == 0) { |
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parents:
diff
changeset
|
792 b = EFFS_NODEVICE; |
945cf7f506b2
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parents:
diff
changeset
|
793 } |
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parents:
diff
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|
794 else { |
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parents:
diff
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|
795 for (b = 0; b < dev.numblocks; b++) { |
945cf7f506b2
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parents:
diff
changeset
|
796 if (is_block(b, BF_IS_EMPTY)) { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
797 if ((bstat[b].used = block_used(b)) == 0) |
945cf7f506b2
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parents:
diff
changeset
|
798 block_preformat(b, 0); |
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parents:
diff
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|
799 else |
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parents:
diff
changeset
|
800 block_free(b); |
945cf7f506b2
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parents:
diff
changeset
|
801 } |
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src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
802 else if (!is_block(b, BF_IS_FREE)) { |
945cf7f506b2
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parents:
diff
changeset
|
803 block_free(b); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
804 } |
945cf7f506b2
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parents:
diff
changeset
|
805 } |
945cf7f506b2
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parents:
diff
changeset
|
806 b = EFFS_OK; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
807 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
808 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
809 tw(tr(TR_END, TrFormat, "} %d\n", b)); |
945cf7f506b2
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parents:
diff
changeset
|
810 ttw(ttr(TTrFormat, "} %d" NL, b)); |
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parents:
diff
changeset
|
811 |
945cf7f506b2
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parents:
diff
changeset
|
812 return b; |
945cf7f506b2
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parents:
diff
changeset
|
813 } |
945cf7f506b2
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parents:
diff
changeset
|
814 |
945cf7f506b2
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parents:
diff
changeset
|
815 // Preformat a single block thus taking it from the 'Empty' state into |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
816 // 'Free' state. |
945cf7f506b2
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parents:
diff
changeset
|
817 void block_preformat(bref_t b, age_t age) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
818 { |
945cf7f506b2
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parents:
diff
changeset
|
819 int set_age_max; |
945cf7f506b2
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parents:
diff
changeset
|
820 struct block_header_s *bhp = |
945cf7f506b2
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parents:
diff
changeset
|
821 (struct block_header_s *) offset2addr(dev.binfo[b].offset); |
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parents:
diff
changeset
|
822 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
823 tw(tr(TR_BEGIN, TrFormat, "fs_block_preformat(%d, %d)\n", b, age)); |
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parents:
diff
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|
824 |
945cf7f506b2
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parents:
diff
changeset
|
825 if (age == 0) { |
945cf7f506b2
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parents:
diff
changeset
|
826 age = fs.age_max; |
945cf7f506b2
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parents:
diff
changeset
|
827 } |
945cf7f506b2
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parents:
diff
changeset
|
828 else { |
945cf7f506b2
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parents:
diff
changeset
|
829 // We schedule an update of fs.age_max. Due to proper handling of |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
830 // age wrap-around, we can not actually set it now. |
945cf7f506b2
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parents:
diff
changeset
|
831 set_age_max = (age == fs.age_max); |
945cf7f506b2
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parents:
diff
changeset
|
832 age++; |
945cf7f506b2
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parents:
diff
changeset
|
833 if (age == 0) |
945cf7f506b2
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parents:
diff
changeset
|
834 age++; |
945cf7f506b2
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parents:
diff
changeset
|
835 if (set_age_max) { |
945cf7f506b2
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parents:
diff
changeset
|
836 fs.age_max = age; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
837 tw(tr(TR_FUNC, TrFormat, "new fs.age_max = %d\n", fs.age_max)); |
945cf7f506b2
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parents:
diff
changeset
|
838 } |
945cf7f506b2
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parents:
diff
changeset
|
839 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
840 |
945cf7f506b2
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parents:
diff
changeset
|
841 ffsdrv.write_halfword(&bhp->age, age); |
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parents:
diff
changeset
|
842 ffsdrv.write_halfword(&bhp->version, FFS_FORMAT_VERSION); |
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parents:
diff
changeset
|
843 ffsdrv.write_halfword(&bhp->magic_low, BLOCK_MAGIC_LOW); |
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parents:
diff
changeset
|
844 ffsdrv.write_halfword(&bhp->magic_high, BLOCK_MAGIC_HIGH); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
845 |
945cf7f506b2
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parents:
diff
changeset
|
846 bstat[b].flags = BF_IS_EMPTY; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
847 bstat[b].used = 0; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
848 bstat[b].lost = 0; |
945cf7f506b2
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parents:
diff
changeset
|
849 bstat[b].objects = 0; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
850 |
945cf7f506b2
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parents:
diff
changeset
|
851 block_flags_write(b, BF_FREE); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
852 |
945cf7f506b2
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parents:
diff
changeset
|
853 tw(tr(TR_END, TrFormat, "")); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
854 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
855 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
856 // After preformat() has erased two blocks, this function can be called to |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
857 // initialize ffs by writing fs data and metadata. Note that ffs_begin() is |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
858 // *not* called before this function in ffs.c. Otherwise we would never |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
859 // enter this function because fs.root is zero. NOTEME: this is also a bug |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
860 // as this means we risk that this operation is started while an erase (or a |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
861 // write) is in progress! How the flash device reacts to this is currently |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
862 // unknown. |
945cf7f506b2
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parents:
diff
changeset
|
863 effs_t fs_format(const char *name) |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
864 { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
865 bref_t i, b; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
866 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
867 ttw(str(TTrFormat, "format {" NL)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
868 tw(tr(TR_BEGIN, TrFormat, "fs_format('%s') {\n", name)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
869 |
945cf7f506b2
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parents:
diff
changeset
|
870 // Initialize file system parameters. It should be safe to change these |
945cf7f506b2
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parents:
diff
changeset
|
871 // now, as the format cannot fail at this point onwards. |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
872 fs_params_init(name); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
873 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
874 // Make the first block be the inodes block |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
875 if ((fs.inodes = block_alloc(1, BF_COPYING)) < 0) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
876 return EFFS_AGAIN; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
877 block_flags_write(fs.inodes, BF_INODES); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
878 inodes_set(fs.inodes); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
879 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
880 // Make all block as data blocks except from the free_min and inode block |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
881 for (i = 0; i < dev.numblocks - fs.blocks_free_min - 1; i++) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
882 if ((b = block_alloc(0, BF_DATA)) < 0) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
883 return EFFS_AGAIN; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
884 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
885 // Restart object sequencing (debug feature only) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
886 fs.sequence = 0; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
887 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
888 // Create root directory |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
889 journal_begin(0); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
890 if ((fs.root = object_create(name, 0, 0, 0)) < 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
891 tw(tr(TR_END, TrFormat, "} %d\n", fs.root)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
892 return fs.root; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
893 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
894 journal_commit(OT_DIR); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
895 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
896 if ((fs.ijournal = journal_create(0)) < 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
897 tw(tr(TR_END, TrFormat, "} %d\n", fs.ijournal)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
898 return fs.ijournal; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
899 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
900 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
901 fs.initerror = ffs_initialize(); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
902 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
903 ttw(ttr(TTrFormat, "} %d" NL, fs.initerror)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
904 tw(tr(TR_END, TrFormat, "} %d\n", fs.initerror)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
905 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
906 return fs.initerror; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
907 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
908 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
909 // Check if we are ready to preformat (flag = 0) or format (flag = 1) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
910 // |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
911 // For a format, we must first ensure no blocks are valid e.g. a preformat |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
912 // has already been run. Next, we must ensure we have preformatted all |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
913 // blocks e.g. all blocks are in the 'Free' state. This is actually the same |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
914 // thing but it sure helps the user because it yields a more precise error |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
915 // code when the format fails. In future we might be able to start a format |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
916 // when only two blocks have been preformatted, but this is harder because |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
917 // we have to make sure not to read from the physical sector that we are |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
918 // erasing, and this is exactly what ffs_ffs_initialize() currently does |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
919 // (when it is called at the end of format()). |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
920 // |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
921 // For a preformat, we must ensure an erase is not in progress (because we |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
922 // don't know how the device will react to a new erase when an erase is |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
923 // currently suspended). |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
924 effs_t is_formattable(int8 flag) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
925 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
926 bref_t i, free, valid; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
927 effs_t error = EFFS_OK; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
928 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
929 tw(tr(TR_FUNC, TrFormat, "is_formattable() ")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
930 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
931 // Count the number of valid and free blocks. These numbers will later |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
932 // be checked to see if we are really ready for a (pre)format(). Note |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
933 // that we *only* read block flags from the bstat[] array. We must not |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
934 // read directly from the flash sectors because an erase might be in |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
935 // progress! |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
936 for (i = 0, free = 0, valid = 0; i < dev.numblocks; i++) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
937 if (is_block(i, BF_IS_DATA) || is_block(i, BF_IS_INODES)) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
938 valid++; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
939 if (is_block(i, BF_IS_FREE)) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
940 free++; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
941 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
942 if (flag == 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
943 // In the case of a preformat, ensure an erase is not in |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
944 // progress (because we don't know how the device will react to a new |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
945 // erase when an erase is currently suspended). |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
946 if (dev.state == DEV_ERASE || dev.state == DEV_ERASE_SUSPEND) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
947 tw(tr(TR_NULL, TrFormat, "(%d)\n", EFFS_AGAIN)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
948 return EFFS_AGAIN; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
949 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
950 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
951 else { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
952 if (valid > 0) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
953 // Ensure we have preformatted prior to a format. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
954 error = EFFS_NOPREFORMAT; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
955 else if (free < dev.numblocks) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
956 // Ensure all blocks are free before a format(). If not, a |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
957 // preformat() is currently in progress. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
958 error = EFFS_AGAIN; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
959 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
960 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
961 tw(tr(TR_NULL, TrFormat, "(%d)\n", error)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
962 return error; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
963 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
964 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
965 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
966 /****************************************************************************** |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
967 * Journalling |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
968 ******************************************************************************/ |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
969 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
970 // The following matrix illustrates how the members of an inode change for |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
971 // the various (journalled) operations: |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
972 // |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
973 // | flags | size | loc | child | siblg | dir | oldi | updates |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
974 // ---------+-------+------+-----+-------+-------+-----+------+-------- |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
975 // create | new | new | new | - | - | ins | n/a | 0 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
976 // fupdate | o | new | new | o | - | ins | del | old+1 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
977 // relocate | o | o | new | o | - | ins | del | old+1 |
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978 // fctrl | new | o | o | o | - | ins | del | old+1 |
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979 // remove | n/a | n/a | n/a | n/a | n/a | n/a | del | n/a |
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980 // |
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981 // - = leave empty (0xFFFF) |
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982 // ins = insert/append into directory |
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983 // o = old value |
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984 // |
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985 // We don't have to store child member in the journal entry because either |
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986 // it is EMPTY (fs.journal.oldi = 0) or it is retrieved from oldip->child. |
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987 |
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988 // NOTEME: With journalling implemented, object_relocate might be able just |
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989 // to make a simple data copy! |
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990 |
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991 // block_clean() is safe (without journalling), now that only ip->size is |
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992 // set to zero. |
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993 |
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994 // Begin a new journal. Either a fresh object create (oldi == 0) or an |
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995 // update of an existing object (oldi == iref of old object) |
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996 void journal_begin(iref_t oldi) |
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997 { |
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998 tw(tr(TR_FUNC, TrJournal, "journal_begin(%d)\n", oldi)); |
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999 |
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1000 fs.journal.i = 0; |
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1001 fs.journal.state = JOURNAL_IS_EMPTY; |
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1002 fs.journal.repli = 0; |
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1003 fs.link_child = 1; //Default link child in journal_commit() |
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1004 |
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1005 if (oldi == 0) { |
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1006 fs.journal.flags = 0xFF; |
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1007 fs.journal.diri = 0; |
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1008 fs.journal.oldi = 0; |
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1009 fs.journal.location = 0; |
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1010 fs.journal.size = 0; |
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1011 } |
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1012 else { |
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1013 struct inode_s *oldip = inode_addr(oldi); |
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1014 fs.journal.flags = oldip->flags; |
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1015 fs.journal.diri = oldi; |
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1016 fs.journal.oldi = oldi; |
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1017 fs.journal.location = oldip->location; |
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1018 fs.journal.size = oldip->size; |
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1019 } |
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1020 } |
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1021 |
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1022 // NOTEME: We have compressed the macro code because it will NOT compile on |
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1023 // Unix otherwise. So until we find out why, we use this as a work-around. |
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1024 #if (FFS_TEST == 1) |
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1025 #define JOURNAL_TEST(testcase, text) if (fs.testflags == testcase) { tw(tr(TR_END, TrJournal, "} (" text ")\n")); return; } |
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1026 #else |
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1027 #define JOURNAL_TEST(testcase, text) |
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1028 #endif |
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1029 |
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1030 // NOTEME: Should we empty journal file when we are anyway relocating it in |
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1031 // data_reclaim()? |
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1032 void journal_end(uint8 type) |
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1033 { |
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1034 struct inode_s *ip = inode_addr(fs.ijournal); |
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1035 struct journal_s *addr = (struct journal_s *) |
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1036 offset2addr(location2offset(ip->location) + fs.journal_pos); |
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1037 |
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1038 tw(tr(TR_BEGIN, TrJournal, "journal_end(0x%x) {\n", type)); |
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1039 tw(tr(TR_FUNC, TrJournal, "journal_pos = 0x%04x (%d)\n", fs.journal_pos, |
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1040 (fs.journal_pos - JOURNAL_POS_INITIAL) / sizeof(struct journal_s))); |
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|
1041 |
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diff
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|
1042 // If this is a create, set the object type |
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|
1043 if (type != 0 && fs.journal.oldi == 0) |
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|
1044 fs.journal.flags = (fs.journal.flags & OF_MASK) | type; |
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1045 |
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1046 // If there is no journal file, we can do without it, although we |
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1047 // certainly don't like it! |
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1048 if (fs.ijournal == 0) { |
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diff
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|
1049 journal_commit(0); |
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|
1050 tw(tr(TR_END, TrJournal, "} No jounal file\n")); |
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1051 return; |
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|
1052 } |
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1053 |
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|
1054 JOURNAL_TEST(JOURNAL_TEST_EMPTY, "Oops in JOURNAL_IS_EMPTY"); |
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|
1055 |
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|
1056 // Write RAM journal to journal file. |
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diff
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|
1057 if (fs.journal.state == (uint8) JOURNAL_IS_EMPTY) { |
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1058 fs.journal.state = JOURNAL_IS_WRITING; |
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1059 ffsdrv.write(addr, &fs.journal, sizeof(fs.journal)); |
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1060 } |
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|
1061 |
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|
1062 JOURNAL_TEST(JOURNAL_TEST_WRITING, "Oops in JOURNAL_IS_WRITING"); |
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|
1063 |
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|
1064 // Advance journal file's state |
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diff
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|
1065 if (fs.journal.state == (uint8) JOURNAL_IS_WRITING) { |
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|
1066 fs.journal.state = JOURNAL_IS_READY; |
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1067 ffsdrv_write_byte(&addr->state, fs.journal.state); |
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|
1068 } |
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|
1069 |
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|
1070 JOURNAL_TEST(JOURNAL_TEST_READY, "Oops in JOURNAL_IS_READY"); |
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|
1071 |
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|
1072 journal_commit(0); |
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|
1073 |
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diff
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|
1074 JOURNAL_TEST(JOURNAL_TEST_COMMITTING, "Oops in JOURNAL_TEST_COMMITTING"); |
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|
1075 JOURNAL_TEST(JOURNAL_TEST_COMMITTED, "Oops in JOURNAL_COMMITTED"); |
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|
1076 |
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|
1077 // Advance journal file's state |
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diff
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|
1078 ffsdrv_write_byte(&addr->state, JOURNAL_IS_DONE); |
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|
1079 |
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|
1080 JOURNAL_TEST(JOURNAL_TEST_DONE, "Oops in JOURNAL_IS_DONE"); |
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|
1081 |
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diff
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|
1082 // Advance journal |
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|
1083 fs.journal_pos += sizeof(struct journal_s); |
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1084 |
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1085 // Unless we are currently relocating the journal file itself, check if |
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1086 // journal file is near full and relocate it if it is. |
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1087 if (fs.journal_pos >= fs.journal_size - FFS_JOURNAL_MARGIN * |
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1088 sizeof(struct journal_s) && fs.journal.oldi != fs.ijournal) { |
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1089 tw(tr(TR_FUNC, TrJournal, "Journal file (near) full!\n")); |
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1090 journal_create(fs.ijournal); |
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1091 } |
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1092 |
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1093 // Check if we have just committed the journal file itself |
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1094 if (fs.journal.oldi == fs.ijournal) { |
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1095 fs.journal_pos = JOURNAL_POS_INITIAL; |
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1096 fs.ijournal = fs.journal.i; |
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1097 tw(tr(TR_FUNC, TrJournal, "Journal file re-created, fs.ijournal = %d\n", |
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1098 fs.ijournal)); |
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1099 } |
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1100 tw(tr(TR_END, TrJournal, "}\n")); |
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1101 } |
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1102 |
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1103 // Write contents of fs.journal to FFS meta data (inodes). Note that we do |
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1104 // NOT traverse ip->copied as we used to do in the old |
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1105 // object_update_commit(). Also, we do not check if object has been |
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1106 // erased after traversing ip->copied. All this code has been removed |
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1107 // because we will very soon have full callback functionality and thus the |
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1108 // code is redundant. |
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1109 void journal_commit(uint8 type) |
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1110 { |
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1111 struct inode_s *ip = inode_addr(fs.journal.i); |
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1112 struct inode_s *oldip = inode_addr(fs.journal.oldi); |
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1113 struct inode_s *dp; |
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1114 bref_t b; |
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1115 |
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1116 tw(tr(TR_BEGIN, TrJournal, "journal_commit(%d) {\n", type)); |
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1117 tw(tr(TR_FUNC, TrJournal, "i = %d\n", fs.journal.i)); |
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1118 ttw(ttr(TTrObj, "jc(){" NL)); |
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1119 |
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1120 if (fs.journal.i) |
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1121 { |
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1122 // If this is a create, set the object type |
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1123 if (type != 0 && fs.journal.oldi == 0) |
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|
1124 fs.journal.flags = (fs.journal.flags & OF_MASK) | type; |
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1125 |
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1126 tw(tr(TR_FUNC, TrJournal, "loc = 0x%04x, size = %d\n", |
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1127 fs.journal.location, fs.journal.size)); |
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1128 ffsdrv.write((uint32 *) &ip->location, (uint32 *) &fs.journal.location, sizeof(location_t)); |
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1129 ffsdrv.write_halfword((uint16 *) &ip->size, fs.journal.size); |
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1130 |
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1131 if (fs.journal.oldi != 0 && fs.link_child != 0) |
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1132 // If this is an update, we copy the child member from old |
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1133 // inode. We must do this before we validate the new object, |
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1134 // otherwise an intermediate readdir() will detect an empty |
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1135 // directory! |
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1136 ffsdrv.write_halfword((uint16*) &ip->child, oldip->child); |
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1137 |
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1138 tw(tr(TR_FUNC, TrJournal, "seq = %d\n", fs.sequence)); |
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1139 // We must check if sequence is already written because if this |
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1140 // commit was inititiated by journal_init(), we don't know exactly |
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1141 // what was written |
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|
1142 if (ip->sequence == FLASH_NULL16) |
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|
1143 ffsdrv.write_halfword(&ip->sequence, fs.sequence++); |
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|
1144 if (fs.journal.oldi == 0) |
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|
1145 ffsdrv.write_halfword(&ip->updates, 0); |
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1146 else |
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|
1147 ffsdrv.write_halfword(&ip->updates, oldip->updates + 1); |
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|
1148 |
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|
1149 JOURNAL_TEST(JOURNAL_TEST_COMMITTING, "Oops in JOURNAL_TEST_COMMITTING") |
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1150 |
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|
1151 // Insert object into directory structure. We must do this before |
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|
1152 // deleting old object, otherwise an intermediate readdir() will |
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|
1153 // fail with EFFS_NOTFOUND. Note that when the root directory is |
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1154 // created, fs.journal.diri is zero --- thus the test! |
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|
1155 if (fs.journal.diri != 0) { |
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|
1156 tw(tr(TR_FUNC, TrJournal, "diri = %d ", fs.journal.diri)); |
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|
1157 if (fs.journal.diri < 0) { |
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|
1158 tw(tr(TR_NULL, TrJournal, "child\n")); |
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|
1159 dp = inode_addr(-fs.journal.diri); |
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|
1160 ffsdrv.write_halfword((uint16 *) &dp->child, fs.journal.i); |
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|
1161 } |
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1162 else { |
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|
1163 tw(tr(TR_NULL, TrJournal, "sibling\n")); |
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|
1164 dp = inode_addr(fs.journal.diri); |
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|
1165 ffsdrv.write_halfword((uint16 *) &dp->sibling, fs.journal.i); |
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|
1166 } |
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|
1167 } |
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|
1168 |
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|
1169 // The new object is validated before the old object is deleted. |
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|
1170 // This is in order to avoid an interrupting stat or read operation |
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|
1171 // to fail with EFFS_NOTFOUND |
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|
1172 tw(tr(TR_FUNC, TrJournal, "flags = 0x%02x\n", fs.journal.flags)); |
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|
1173 ffsdrv_write_byte(&ip->flags, fs.journal.flags); |
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|
1174 |
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|
1175 // Update bstat[] appropriately |
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|
1176 b = offset2block(location2offset(ip->location)); |
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|
1177 bstat[b].objects++; |
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changeset
|
1178 tw(tr(TR_FUNC, TrJournal, "bstat[%d].objects = %d\n", b, bstat[b].objects)); |
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|
1179 } |
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|
1180 |
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changeset
|
1181 tw(tr(TR_FUNC, TrJournal, "oldi = %d\n", fs.journal.oldi)); |
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|
1182 if (fs.journal.oldi != 0) |
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|
1183 { |
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changeset
|
1184 // If this is an update or an erase, we erase the old object |
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changeset
|
1185 ffsdrv_write_byte(&oldip->flags, OT_ERASED); |
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diff
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|
1186 |
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diff
changeset
|
1187 // Update bstat according to deletion of the old object. |
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parents:
diff
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|
1188 b = offset2block(location2offset(oldip->location)); |
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|
1189 bstat[b].objects--; |
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diff
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|
1190 tw(tr(TR_FUNC, TrJournal, "bstat[%d].objects = %d\n", b, bstat[b].objects)); |
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|
1191 |
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diff
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|
1192 // If we moved the data (all cases, except fcontrol), update lost |
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parents:
diff
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|
1193 if (fs.journal.location != oldip->location) |
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parents:
diff
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|
1194 bstat[b].lost += oldip->size; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1195 |
945cf7f506b2
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parents:
diff
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|
1196 bstat[fs.inodes].lost++; |
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parents:
diff
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|
1197 |
945cf7f506b2
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parents:
diff
changeset
|
1198 // If we renamed a file to an existing filename, remove the replaced file. |
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parents:
diff
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|
1199 if (fs.journal.repli > 0) |
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parents:
diff
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|
1200 object_remove(fs.journal.repli); // Ignore error! |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1201 } |
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parents:
diff
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|
1202 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1203 tw(tr(TR_END, TrJournal, "}\n")); |
945cf7f506b2
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parents:
diff
changeset
|
1204 ttw(ttr(TTrObj, "}" NL)); |
945cf7f506b2
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parents:
diff
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|
1205 } |
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parents:
diff
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|
1206 |
945cf7f506b2
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parents:
diff
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|
1207 // Save the current journal into "old" journal. We need this because an |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1208 // object_create() can call data_reclaim() which can call object_relocate() |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1209 // which uses the journal system. |
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parents:
diff
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|
1210 int journal_push(void) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1211 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1212 memcpy(&fs.ojournal, &fs.journal, sizeof(struct journal_s)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1213 fs.journal_depth++; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1214 if (fs.journal_depth > 1) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1215 tw(tr(TR_FUNC, TrAll, "FATAL: journal_push() to depth %d\n", |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1216 fs.journal_depth)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1217 return -1; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
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|
1218 } |
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parents:
diff
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|
1219 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1220 tw(tr(TR_FUNC, TrJournal, "journal_push() to depth %d\n", |
945cf7f506b2
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parents:
diff
changeset
|
1221 fs.journal_depth)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1222 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1223 return EFFS_OK; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1224 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1225 |
945cf7f506b2
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parents:
diff
changeset
|
1226 // Recall "old" journal into current journal |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1227 int journal_pop(void) |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1228 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1229 tw(tr(TR_FUNC, TrJournal, "journal_pop() from depth %d\n", |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1230 fs.journal_depth)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1231 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1232 fs.journal_depth--; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1233 if (fs.journal_depth < 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1234 tw(tr(TR_FUNC, TrAll, "FATAL: journal_pop() to depth %d\n", |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1235 fs.journal_depth)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1236 return -1; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1237 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1238 memcpy(&fs.journal, &fs.ojournal, sizeof(struct journal_s)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1239 |
945cf7f506b2
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parents:
diff
changeset
|
1240 return EFFS_OK; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1241 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1242 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1243 // Initialize the journalling system. Create journal file if it not already |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1244 // exist. Commit/write pending journal if such exists --- return 1 in that |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1245 // case. Otherwise, if journal file is clean (no journals pending) and all |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1246 // is fine, return EFFS_OK. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1247 effs_t journal_init(iref_t i) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1248 { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1249 int j; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1250 struct inode_s *ip = inode_addr(i); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1251 struct journal_s *addr; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1252 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1253 if (i == 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1254 // Journal file does not exist, so create it |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1255 if ((i = journal_create(0)) <= 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1256 fs.ijournal = 0; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1257 return i; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1258 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1259 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1260 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1261 fs.journal_depth = 0; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1262 fs.journal_pos = JOURNAL_POS_INITIAL; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1263 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1264 addr = (struct journal_s *) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1265 offset2addr(location2offset(ip->location) + fs.journal_pos); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1266 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1267 tw(tr(TR_BEGIN, TrJournal, "journal_init(%d) {\n", i)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1268 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1269 fs.ijournal = i; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1270 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1271 // Search for first non-completed journal entry. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1272 for (j = 0; /* FIXME: limit to end of journal */; j++, addr++) { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1273 if (addr->state != (uint8) JOURNAL_IS_DONE) |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1274 break; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1275 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1276 tw(tr(TR_FUNC, TrJournal, "entry %d is in state 0x%x\n", j, addr->state)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1277 |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1278 fs.journal_pos += j * sizeof(fs.journal); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1279 i = EFFS_OK; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1280 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1281 if (addr->state == (uint8) JOURNAL_IS_EMPTY) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1282 tw(tr(TR_FUNC, TrJournal, "Last journal is in EMPTY state\n")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1283 // Journal file is proper, so just record position |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1284 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1285 else if (addr->state == (uint8) JOURNAL_IS_READY) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1286 // Copy the entry into fs.journal. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1287 tw(tr(TR_FUNC, TrJournal, "Last journal is in READY state\n")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1288 memcpy(&fs.journal, addr, sizeof(fs.journal)); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1289 journal_end(0); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1290 i = 1; |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1291 } |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1292 else { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1293 // Journal entry wasn't finished, so just ignore it after updating |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1294 // its state to JOURNAL_IS_DONE. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1295 tw(tr(TR_FUNC, TrJournal, "Last journal is between EMPTY and READY\n")); |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1296 ffsdrv_write_byte(&addr->state, JOURNAL_IS_DONE); |
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|
1297 fs.journal_pos += sizeof(fs.journal); |
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parents:
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|
1298 } |
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parents:
diff
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|
1299 |
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changeset
|
1300 if (ip->size != fs.journal_size + atomalign(sizeof(FFS_JOURNAL_NAME) + 1)) { |
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parents:
diff
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|
1301 tw(tr(TR_FUNC, TrJournal, "Wrong journal size, create new\n")); |
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parents:
diff
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|
1302 // Journal size do not match default size, so create new. This |
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parents:
diff
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|
1303 // should only happen if we use an old FFS image with a newer FFS |
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parents:
diff
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|
1304 // version. |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1305 if ((i = journal_create(fs.ijournal)) <= 0) { |
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diff
changeset
|
1306 fs.ijournal = 0; |
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parents:
diff
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|
1307 return i; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
1308 } |
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parents:
diff
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|
1309 } |
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diff
changeset
|
1310 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1311 tw(tr(TR_FUNC, TrJournal, "journal_pos = 0x%04x\n", fs.journal_pos)); |
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parents:
diff
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|
1312 tw(tr(TR_END, TrJournal, "} %d\n", i)); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
1313 |
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diff
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|
1314 return i; |
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parents:
diff
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|
1315 } |
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parents:
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|
1316 |
945cf7f506b2
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parents:
diff
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|
1317 // Create the journal file from scratch or relocate an existing one. It is |
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parents:
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|
1318 // marked read-only just for clarity --- it cannot be deleted anyway! |
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|
1319 // fs_format() calls this function. Note that no data are written in |
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parents:
diff
changeset
|
1320 // object_create() because the journal file is handled specially in that |
945cf7f506b2
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parents:
diff
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|
1321 // function. |
945cf7f506b2
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parents:
diff
changeset
|
1322 iref_t journal_create(iref_t oldi) |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1323 { |
945cf7f506b2
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parents:
diff
changeset
|
1324 iref_t i; |
945cf7f506b2
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parents:
diff
changeset
|
1325 |
945cf7f506b2
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parents:
diff
changeset
|
1326 tw(tr(TR_BEGIN, TrJournal, "journal_create(%d) {\n", oldi)); |
945cf7f506b2
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parents:
diff
changeset
|
1327 tw(tr(TR_FUNC, TrJournal, "journal file size = %d\n", fs.journal_size)); |
945cf7f506b2
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parents:
diff
changeset
|
1328 |
945cf7f506b2
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parents:
diff
changeset
|
1329 if (fs.journal_size == 0) { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1330 tw(tr(TR_FUNC, TrJournal, "Journal file creation aborted because fs.journal_size = 0 (No journal file wanted)\n")); |
945cf7f506b2
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parents:
diff
changeset
|
1331 tw(tr(TR_END, TrJournal, "} %d\n", 0)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1332 return 0; |
945cf7f506b2
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parents:
diff
changeset
|
1333 } |
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parents:
diff
changeset
|
1334 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1335 // If we are working on a write-once file system, we do not need a |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1336 // journal. |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
1337 if (fs.blocks_free_min == 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1338 tw(tr(TR_FUNC, TrJournal, "Journal file creation aborted because fs.blocks_free_min = 0 (write-once system)\n")); |
945cf7f506b2
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parents:
diff
changeset
|
1339 tw(tr(TR_END, TrJournal, "} %d\n", 0)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1340 return 0; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1341 } |
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parents:
diff
changeset
|
1342 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1343 journal_begin(oldi); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1344 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1345 i = object_create(FFS_JOURNAL_NAME, 0, fs.journal_size, -fs.root); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1346 if (i < 0) { |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1347 tw(tr(TR_END, TrJournal, "} %d\n", i)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1348 return i; |
945cf7f506b2
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parents:
diff
changeset
|
1349 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1350 fs.journal.flags = BIT_SET(fs.journal.flags, OF_READONLY); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1351 |
945cf7f506b2
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parents:
diff
changeset
|
1352 // commit the creation or relocation |
945cf7f506b2
src/cs: chipsetsw import from tcs211-fcmodem
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parents:
diff
changeset
|
1353 if (oldi != 0) |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1354 journal_end(0); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1355 else { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1356 journal_commit(OT_FILE); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1357 fs.journal_pos = JOURNAL_POS_INITIAL; |
945cf7f506b2
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parents:
diff
changeset
|
1358 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1359 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1360 tw(tr(TR_END, TrJournal, "} %d\n", i)); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1361 |
945cf7f506b2
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parents:
diff
changeset
|
1362 return i; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1363 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1364 |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1365 /****************************************************************************** |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1366 * FFS Begin and End |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1367 ******************************************************************************/ |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1368 |
945cf7f506b2
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parents:
diff
changeset
|
1369 // The following two functions should surround the code of every API |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1370 // function in ffs.c (except preformat and format). The functions |
945cf7f506b2
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parents:
diff
changeset
|
1371 // ensures that the operation about to be executed can be made without |
945cf7f506b2
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parents:
diff
changeset
|
1372 // race-conditions or other problems. |
945cf7f506b2
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parents:
diff
changeset
|
1373 #if (TARGET == 0) |
945cf7f506b2
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parents:
diff
changeset
|
1374 int debug_suspend = 0; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1375 #endif |
945cf7f506b2
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parents:
diff
changeset
|
1376 |
945cf7f506b2
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parents:
diff
changeset
|
1377 |
945cf7f506b2
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parents:
diff
changeset
|
1378 // Check if ffs has been initialized. Suspend an erase operation. |
945cf7f506b2
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parents:
diff
changeset
|
1379 effs_t ffs_begin(void) |
945cf7f506b2
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parents:
diff
changeset
|
1380 { |
945cf7f506b2
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parents:
diff
changeset
|
1381 #if (TARGET == 0) |
945cf7f506b2
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parents:
diff
changeset
|
1382 if (debug_suspend > 0) { |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1383 tw(tr(TR_FUNC, TrAll, "FATAL: Previous erase_suspend was not resumed\n")); |
945cf7f506b2
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parents:
diff
changeset
|
1384 return EFFS_CORRUPTED; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1385 } |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1386 // tw(tr(TR_FUNC, TrHelper, "Set debug_suspend\n")); |
945cf7f506b2
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parents:
diff
changeset
|
1387 debug_suspend = 1; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1388 #endif |
945cf7f506b2
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parents:
diff
changeset
|
1389 |
945cf7f506b2
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parents:
diff
changeset
|
1390 if (fs.initerror != EFFS_OK) |
945cf7f506b2
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parents:
diff
changeset
|
1391 return fs.initerror; |
945cf7f506b2
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parents:
diff
changeset
|
1392 |
945cf7f506b2
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parents:
diff
changeset
|
1393 // Suspend an erase in progress (only applicable if we are using a |
945cf7f506b2
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parents:
diff
changeset
|
1394 // multi-bank device driver) |
945cf7f506b2
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parents:
diff
changeset
|
1395 if (dev.state == DEV_ERASE) { |
945cf7f506b2
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parents:
diff
changeset
|
1396 ffsdrv.erase_suspend(); |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1397 } |
945cf7f506b2
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parents:
diff
changeset
|
1398 else if (dev.state == DEV_WRITE) { |
945cf7f506b2
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parents:
diff
changeset
|
1399 ffsdrv.write_end(); |
945cf7f506b2
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parents:
diff
changeset
|
1400 } |
945cf7f506b2
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parents:
diff
changeset
|
1401 |
945cf7f506b2
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parents:
diff
changeset
|
1402 return EFFS_OK; |
945cf7f506b2
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1403 } |
945cf7f506b2
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parents:
diff
changeset
|
1404 |
945cf7f506b2
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parents:
diff
changeset
|
1405 // Resume an erase operation that was in progress. |
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1406 int ffs_end(int error) |
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1407 { |
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1408 #if (TARGET == 1) |
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1409 // Resume an erase in progress (only applicable if we are using a |
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1410 // multi-bank device driver) |
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1411 if (dev.state == DEV_ERASE_SUSPEND) { |
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1412 ffsdrv.erase_resume(); |
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1413 } |
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1414 #else |
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1415 debug_suspend = 0; |
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1416 #endif |
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1417 |
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1418 return error; |
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1419 } |
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1420 |
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1421 /****************************************************************************** |
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1422 * FFS Statistics functions |
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1423 ******************************************************************************/ |
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1424 |
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1425 // Not implemented: |
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1426 int statistics_file_create(void) |
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1427 { |
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1428 return 0; |
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1429 } |
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1430 |
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1431 // Not implemented: |
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1432 // Rewrite the statistics file if it exists. Otherwise return error |
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1433 // code. The function is called after each data and inodes reclaim (after |
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1434 // writing the file that provoked the reclaim). |
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1435 int statistics_write(void) |
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1436 { |
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1437 return 0; |
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1438 } |
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1439 |
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1440 // Read the statistics file if it exists. Otherwise reset all statistics to |
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1441 // zero and set the magic. This function is called from ffs_init(). |
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1442 void statistics_init(void) |
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1443 { |
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1444 memset(&stats, 0, sizeof(struct ffs_stats_s)); |
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1445 } |
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1446 |
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1447 void statistics_update_drec(int valid, int lost, int candidate) |
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1448 { |
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1449 unsigned int old; |
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1450 |
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1451 switch (candidate) { |
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1452 case MOST_LOST: stats.drec.most_lost++; break; |
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1453 case MOST_UNUSED: stats.drec.most_unused++; break; |
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1454 case YOUNGEST: stats.drec.youngest++; break; |
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1455 } |
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1456 |
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1457 // Increment Most Significant Word if overflow is detected |
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1458 old = stats.drec.valid[0]; |
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1459 stats.drec.valid[0] += valid; |
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1460 if (old > stats.drec.valid[0]) |
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1461 stats.drec.valid[1]++; |
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1462 |
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1463 old = stats.drec.lost[0]; |
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1464 stats.drec.lost[0] += lost; |
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1465 if (old > stats.drec.lost[0]) |
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1466 stats.drec.lost[1]++; |
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1467 } |
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1468 |
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1469 void statistics_update_irec(int valid, int lost) |
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1470 { |
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1471 stats.irec.num++; |
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1472 stats.irec.valid += valid; |
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1473 stats.irec.lost += lost; |
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1474 } |
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1475 |