This is a note to let you know that I've just added the patch titled
f2fs: clear atomic_write_task in f2fs_abort_atomic_write()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
f2fs-clear-atomic_write_task-in-f2fs_abort_atomic_wr.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bb518c9b9ac2b9d02ff071f8ece9be4480bf6714
Author: Chao Yu <chao@xxxxxxxxxx>
Date: Mon Jan 9 11:44:50 2023 +0800
f2fs: clear atomic_write_task in f2fs_abort_atomic_write()
[ Upstream commit 0e8d040bfa4c476d7d2a23119527c744c7de13cd ]
Otherwise, last .atomic_write_task will be remained in structure
f2fs_inode_info, resulting in aborting atomic_write accidentally
in race case. Meanwhile, clear original_i_size as well.
Fixes: 7a10f0177e11 ("f2fs: don't give partially written atomic data from process crash")
Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 60d79e427f988..63c6894099799 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -200,9 +200,12 @@ void f2fs_abort_atomic_write(struct inode *inode, bool clean)
clear_inode_flag(inode, FI_ATOMIC_FILE);
stat_dec_atomic_inode(inode);
+ F2FS_I(inode)->atomic_write_task = NULL;
+
if (clean) {
truncate_inode_pages_final(inode->i_mapping);
f2fs_i_size_write(inode, fi->original_i_size);
+ fi->original_i_size = 0;
}
}
