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f2fs: mark inode dirty for FI_ATOMIC_COMMITTED flag
[ Upstream commit4bf7832234
] 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:3db1de0e58
("f2fs: change the current atomic write way") Cc: stable@vger.kernel.org #v5.19+ Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com> Reviewed-by: Yeongjin Gil <youngjin.gil@samsung.com> Signed-off-by: Sunmin Jeong <s_min.jeong@samsung.com> Reviewed-by: Daeho Jeong <daehojeong@google.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -3024,6 +3024,7 @@ static inline void __mark_inode_dirty_flag(struct inode *inode,
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case FI_INLINE_DOTS:
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case FI_PIN_FILE:
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case FI_COMPRESS_RELEASED:
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case FI_ATOMIC_COMMITTED:
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f2fs_mark_inode_dirty_sync(inode, true);
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}
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}
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