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| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2023-06-03 18:03:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-23 14:49:33 +0300 |
| commit | 2038d35749c74994a9cf0a4bbd206a8c976591ba (patch) | |
| tree | 298fd82a908debf6d343950a8120bc807f82b02d /fs | |
| parent | 782166ac858a44c321a591fb57b8a4a93c094cc4 (diff) | |
| download | linux-2038d35749c74994a9cf0a4bbd206a8c976591ba.tar.xz | |
ext4: get block from bh in ext4_free_blocks for fast commit replay
commit 11b6890be0084ad4df0e06d89a9fdcc948472c65 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -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 8613f87c96d8..9ada3a395255 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -6158,12 +6158,6 @@ 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); @@ -6171,6 +6165,13 @@ 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 - " |