From: Chao Yu <chao2.yu@samsung.com>
Date: Wed, 28 Oct 2015 09:56:14 +0000 (+0800)
Subject: f2fs: commit atomic written page in LFS mode
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2da3e027461ab0148384b02bd5905f1a7b335dff;p=linux-beck.git

f2fs: commit atomic written page in LFS mode

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>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 972eab7ac071..0cc8de2839c4 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1083,6 +1083,7 @@ 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);