From: Sunmin Jeong Date: Wed, 13 Mar 2024 11:26:19 +0000 (+0900) Subject: f2fs: mark inode dirty for FI_ATOMIC_COMMITTED flag X-Git-Tag: v6.9-rc1~67^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4bf78322346f6320313683dc9464e5423423ad5c;p=thirdparty%2Fkernel%2Flinux.git f2fs: mark inode dirty for FI_ATOMIC_COMMITTED flag In f2fs_update_inode, i_size of the atomic file isn't updated until FI_ATOMIC_COMMITTED flag is set. When committing atomic write right after the writeback of the inode, i_size of the raw inode will not be updated. It can cause the atomicity corruption due to a mismatch between old file size and new data. To prevent the problem, let's mark inode dirty for FI_ATOMIC_COMMITTED Atomic write thread Writeback thread __writeback_single_inode write_inode f2fs_update_inode - skip i_size update f2fs_ioc_commit_atomic_write f2fs_commit_atomic_write set_inode_flag(inode, FI_ATOMIC_COMMITTED) f2fs_do_sync_file f2fs_fsync_node_pages - skip f2fs_update_inode since the inode is clean Fixes: 3db1de0e582c ("f2fs: change the current atomic write way") Cc: stable@vger.kernel.org #v5.19+ Reviewed-by: Sungjong Seo Reviewed-by: Yeongjin Gil Signed-off-by: Sunmin Jeong Reviewed-by: Daeho Jeong Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim --- diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9cda9fcfe3519..4af3dfbd63c73 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3037,6 +3037,7 @@ static inline void __mark_inode_dirty_flag(struct inode *inode, case FI_INLINE_DOTS: case FI_PIN_FILE: case FI_COMPRESS_RELEASED: + case FI_ATOMIC_COMMITTED: f2fs_mark_inode_dirty_sync(inode, true); } }