linux-kernel - [f2fs-dev] [PATCH] f2fs: remove unnecessary TestClearPageError when wait pages writeback

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Message-id: <000001ced905$c49eac00$4ddc0400$@samsung.com>
Date:	Mon, 04 Nov 2013 10:28:33 +0800
From:	Chao Yu <chao2.yu@...sung.com>
To:	'Jaegeuk Kim' <jaegeuk.kim@...sung.com>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	谭姝 <shu.tan@...sung.com>
Subject: [f2fs-dev] [PATCH] f2fs: remove unnecessary TestClearPageError when
 wait pages writeback

In wait_on_node_pages_writeback we will test and clear error flag for all pages in radix tree, but not necessary.
So we only do this for pages belong to the specified inode.

Signed-off-by: Chao Yu <chao2.yu@...sung.com>
---
 fs/f2fs/node.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b527ed4..4ac4150 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1170,10 +1170,11 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
 			if (page->index > end)
 				continue;
 
-			if (ino && ino_of_node(page) == ino)
+			if (ino && ino_of_node(page) == ino) {
 				wait_on_page_writeback(page);
-			if (TestClearPageError(page))
-				ret = -EIO;
+				if (TestClearPageError(page))
+					ret = -EIO;
+			}
 		}
 		pagevec_release(&pvec);
 		cond_resched();
-- 
1.7.9.5

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