befs: add flags field to validate superblock state
For validating superblock state, add flags field to befs_sb_info, read the state from the disk and check if it is equal to BEFS_DIRTY. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
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@ -43,6 +43,9 @@ struct befs_sb_info {
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u32 ag_shift;
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u32 num_ags;
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/* State of the superblock */
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u32 flags;
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/* jornal log entry */
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befs_block_run log_blocks;
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befs_off_t log_start;
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@ -45,6 +45,8 @@ befs_load_sb(struct super_block *sb, befs_super_block * disk_sb)
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befs_sb->ag_shift = fs32_to_cpu(sb, disk_sb->ag_shift);
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befs_sb->num_ags = fs32_to_cpu(sb, disk_sb->num_ags);
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befs_sb->flags = fs32_to_cpu(sb, disk_sb->flags);
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befs_sb->log_blocks = fsrun_to_cpu(sb, disk_sb->log_blocks);
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befs_sb->log_start = fs64_to_cpu(sb, disk_sb->log_start);
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befs_sb->log_end = fs64_to_cpu(sb, disk_sb->log_end);
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@ -101,7 +103,7 @@ befs_check_sb(struct super_block *sb)
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return BEFS_ERR;
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}
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if (befs_sb->log_start != befs_sb->log_end) {
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if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) {
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befs_error(sb, "Filesystem not clean! There are blocks in the "
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"journal. You must boot into BeOS and mount this volume "
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"to make it clean.");
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