From: Zhang Yi yi.zhang@huawei.com

mainline inclusion from mainline-v6.10-rc1 commit df0b5afc62f3368d657a8fe4a8d393ac481474c2 bugzilla: https://gitee.com/src-openeuler/kernel/issues/IANSAC

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

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__filemap_get_folio() with FGP_WRITEBEGIN parameter has already wait for stable folio, so remove the redundant folio_wait_stable() in ext4_da_write_begin(), it was left over from the commit cc883236b792 ("ext4: drop unnecessary journal handle in delalloc write") that removed the retry getting page logic.

Fixes: cc883236b792 ("ext4: drop unnecessary journal handle in delalloc write") Signed-off-by: Zhang Yi yi.zhang@huawei.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20240419023005.2719050-1-yi.zhang@huaweicloud.com Signed-off-by: Theodore Ts'o tytso@mit.edu Conflicts: fs/ext4/inode.c [Since in 4.19, ext4 has not adapted to folio yet, and grab_cache_page_write_begin also has already wait for stable page. So remove the redundant wait_for_stable_page as removing folio_wait_stable in folio version.] Signed-off-by: Yifan Qiao qiaoyifan4@huawei.com --- fs/ext4/inode.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 35033bb43149..994c1e51262c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3078,9 +3078,6 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping, if (!page) return -ENOMEM;

- /* In case writeback began while the page was unlocked */ - wait_for_stable_page(page); - #ifdef CONFIG_EXT4_FS_ENCRYPTION ret = ext4_block_write_begin(page, pos, len, ext4_da_get_block_prep);