[PATCH] f2fs: fix to update F2FS_{CP_}WB_DATA count correctly

From	Chao Yu <yuchao0@huawei.com>
Newsgroups	linux.kernel
Subject	[PATCH] f2fs: fix to update F2FS_{CP_}WB_DATA count correctly
Date	2017-02-27 10:20 +0100
Message-ID	<tfpDj-3t3-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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We should only account F2FS_{CP_}WB_DATA IOs for write path, fix it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
 fs/f2fs/data.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b0a2e3faabb2..1375fef11146 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -398,7 +398,8 @@ int f2fs_submit_page_mbio(struct f2fs_io_info *fio)
 		if ((fio->type == DATA || fio->type == NODE) &&
 				fio->new_blkaddr & F2FS_IO_SIZE_MASK(sbi)) {
 			err = -EAGAIN;
-			dec_page_count(sbi, WB_DATA_TYPE(bio_page));
+			if (!is_read)
+				dec_page_count(sbi, WB_DATA_TYPE(bio_page));
 			goto out_fail;
 		}
 		io->bio = __bio_alloc(sbi, fio->new_blkaddr,
-- 
2.8.2.295.g3f1c1d0

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[PATCH] f2fs: fix to update F2FS_{CP_}WB_DATA count correctly Chao Yu <yuchao0@huawei.com> - 2017-02-27 10:20 +0100

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