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| author | Wang Shilong <wshilong@ddn.com> | 2018-05-12 11:39:40 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-05-12 11:39:40 -0400 |
| commit | db79e6d1fb1f715c961bd880101362e07369de23 (patch) | |
| tree | c2030b521e7fdb8c82f39830975d6ab97c76afc2 /fs/ext4/balloc.c | |
| parent | 0db9fdeb347c10f64b679577f2640c9e35ea5a30 (diff) | |
| download | linux-db79e6d1fb1f715c961bd880101362e07369de23.tar.gz linux-db79e6d1fb1f715c961bd880101362e07369de23.tar.bz2 linux-db79e6d1fb1f715c961bd880101362e07369de23.zip | |
ext4: add new ext4_mark_group_bitmap_corrupted() helper
Since there are many places to set inode/block bitmap
corrupt bit, add a new helper for it, which will make
codes more clear.
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Diffstat (limited to 'fs/ext4/balloc.c')
| -rw-r--r-- | fs/ext4/balloc.c | 29 |
1 files changed, 7 insertions, 22 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 508b905d744d..009dea942e34 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -185,25 +185,15 @@ static int ext4_init_block_bitmap(struct super_block *sb, struct ext4_sb_info *sbi = EXT4_SB(sb); ext4_fsblk_t start, tmp; int flex_bg = 0; - struct ext4_group_info *grp; J_ASSERT_BH(bh, buffer_locked(bh)); /* If checksum is bad mark all blocks used to prevent allocation * essentially implementing a per-group read-only flag. */ if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) { - grp = ext4_get_group_info(sb, block_group); - if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) - percpu_counter_sub(&sbi->s_freeclusters_counter, - grp->bb_free); - set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); - if (!EXT4_MB_GRP_IBITMAP_CORRUPT(grp)) { - int count; - count = ext4_free_inodes_count(sb, gdp); - percpu_counter_sub(&sbi->s_freeinodes_counter, - count); - } - set_bit(EXT4_GROUP_INFO_IBITMAP_CORRUPT_BIT, &grp->bb_state); + ext4_mark_group_bitmap_corrupted(sb, block_group, + EXT4_GROUP_INFO_BBITMAP_CORRUPT | + EXT4_GROUP_INFO_IBITMAP_CORRUPT); return -EFSBADCRC; } memset(bh->b_data, 0, sb->s_blocksize); @@ -375,7 +365,6 @@ static int ext4_validate_block_bitmap(struct super_block *sb, { ext4_fsblk_t blk; struct ext4_group_info *grp = ext4_get_group_info(sb, block_group); - struct ext4_sb_info *sbi = EXT4_SB(sb); if (buffer_verified(bh)) return 0; @@ -387,10 +376,8 @@ static int ext4_validate_block_bitmap(struct super_block *sb, desc, bh))) { ext4_unlock_group(sb, block_group); ext4_error(sb, "bg %u: bad block bitmap checksum", block_group); - if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) - percpu_counter_sub(&sbi->s_freeclusters_counter, - grp->bb_free); - set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); + ext4_mark_group_bitmap_corrupted(sb, block_group, + EXT4_GROUP_INFO_BBITMAP_CORRUPT); return -EFSBADCRC; } blk = ext4_valid_block_bitmap(sb, desc, block_group, bh); @@ -398,10 +385,8 @@ static int ext4_validate_block_bitmap(struct super_block *sb, ext4_unlock_group(sb, block_group); ext4_error(sb, "bg %u: block %llu: invalid block bitmap", block_group, blk); - if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) - percpu_counter_sub(&sbi->s_freeclusters_counter, - grp->bb_free); - set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); + ext4_mark_group_bitmap_corrupted(sb, block_group, + EXT4_GROUP_INFO_BBITMAP_CORRUPT); return -EFSCORRUPTED; } set_buffer_verified(bh); |