[PATCH 2/2] f2fs: commit atomic written page in LFS mode

From	Chao Yu <chao2.yu@samsung.com>
Newsgroups	linux.kernel
Subject	[PATCH 2/2] f2fs: commit atomic written page in LFS mode
Date	2015-10-28 11:00 +0100
Message-ID	<qovGq-VU-23@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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We should always commit atomic written pages in LFS mode, otherwise data
will become corrupted if we encounter suddent power cut after partial
pages committed in IPU mode.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
---
 fs/f2fs/data.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index e070ac0..509caee 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1093,6 +1093,7 @@ int do_write_data_page(struct f2fs_io_info *fio)
 	 */
 	if (unlikely(fio->blk_addr != NEW_ADDR &&
 			!is_cold_data(page) &&
+			!IS_ATOMIC_WRITTEN_PAGE(page) &&
 			need_inplace_update(inode))) {
 		rewrite_data_page(fio);
 		set_inode_flag(F2FS_I(inode), FI_UPDATE_WRITE);
-- 
2.6.1


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[PATCH 2/2] f2fs: commit atomic written page in LFS mode Chao Yu <chao2.yu@samsung.com> - 2015-10-28 11:00 +0100

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