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| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2023-08-26 20:47:11 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-10-06 05:32:15 +0300 |
| commit | 350bb48b84b8f4ad4ea179dbb97f568d12626188 (patch) | |
| tree | c469f4f21f5a839076e55839b4d3e3d5a968519d /fs/ext4/resize.c | |
| parent | 9dca529bdaad7a7242a36d04f73cb998b817ab48 (diff) | |
| download | linux-350bb48b84b8f4ad4ea179dbb97f568d12626188.tar.xz | |
ext4: remove unnecessary check to avoid repeat update_backups for the same gdb
The sbi->s_group_desc contains array of bh's for block group descriptors
and continuous EXT4_DESC_PER_BLOCK(sb) bg descriptors in single block
share the same bh.
Simply call update_backups for each gdb_bh in sbi->s_group_desc will not
update same group descriptors block for multiple times.
Commit 0acdb8876fead ("ext4: don't call update_backups() multiple times for
the same bg") wrongly assumed each block group descriptor in the same block
has a individual bh and unnecessary check was added.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Link: https://lore.kernel.org/r/20230826174712.4059355-13-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/resize.c')
| -rw-r--r-- | fs/ext4/resize.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 5e9084ff131c..718b47e131e4 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1588,7 +1588,6 @@ exit_journal: int meta_bg = ext4_has_feature_meta_bg(sb); sector_t padding_blocks = meta_bg ? 0 : sbi->s_sbh->b_blocknr - ext4_group_first_block_no(sb, 0); - sector_t old_gdb = 0; update_backups(sb, ext4_group_first_block_no(sb, 0), (char *)es, sizeof(struct ext4_super_block), 0); @@ -1597,11 +1596,8 @@ exit_journal: gdb_bh = sbi_array_rcu_deref(sbi, s_group_desc, gdb_num); - if (old_gdb == gdb_bh->b_blocknr) - continue; update_backups(sb, gdb_bh->b_blocknr - padding_blocks, gdb_bh->b_data, gdb_bh->b_size, meta_bg); - old_gdb = gdb_bh->b_blocknr; } } exit: |