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| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2023-06-03 23:03:16 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-06-26 18:13:05 -0400 |
| commit | 11b6890be0084ad4df0e06d89a9fdcc948472c65 (patch) | |
| tree | 59dbe0bf280c3edcde8248522799e347941e6d61 /fs/ext4/mballoc.c | |
| parent | 19a043bb1fd1b5cb2652ca33536c55e6c0a70df0 (diff) | |
| download | linux-11b6890be0084ad4df0e06d89a9fdcc948472c65.tar.gz linux-11b6890be0084ad4df0e06d89a9fdcc948472c65.tar.bz2 linux-11b6890be0084ad4df0e06d89a9fdcc948472c65.zip | |
ext4: get block from bh in ext4_free_blocks for fast commit replay
ext4_free_blocks will retrieve block from bh if block parameter is zero.
Retrieve block before ext4_free_blocks_simple to avoid potentially
passing wrong block to ext4_free_blocks_simple.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: stable@kernel.org
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://lore.kernel.org/r/20230603150327.3596033-9-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.c')
| -rw-r--r-- | fs/ext4/mballoc.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index bcc9622daa4a..dadda9e8cf29 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -6368,12 +6368,6 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode, sbi = EXT4_SB(sb); - if (sbi->s_mount_state & EXT4_FC_REPLAY) { - ext4_free_blocks_simple(inode, block, count); - return; - } - - might_sleep(); if (bh) { if (block) BUG_ON(block != bh->b_blocknr); @@ -6381,6 +6375,13 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode, block = bh->b_blocknr; } + if (sbi->s_mount_state & EXT4_FC_REPLAY) { + ext4_free_blocks_simple(inode, block, count); + return; + } + + might_sleep(); + if (!(flags & EXT4_FREE_BLOCKS_VALIDATED) && !ext4_inode_block_valid(inode, block, count)) { ext4_error(sb, "Freeing blocks not in datazone - " |