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From: Jaegeuk Kim <jaegeuk@kernel.org>
To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Subject: [PATCH 4/6] f2fs: skip to check the block address of node page
Date: Wed,  6 Jul 2016 09:06:30 -0700	[thread overview]
Message-ID: <20160706160632.78272-4-jaegeuk@kernel.org> (raw)
In-Reply-To: <20160706160632.78272-1-jaegeuk@kernel.org>

If the node page is up-to-date, it should be alive.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/node.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index ca1bb3c..9d994b9 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1080,6 +1080,9 @@ static int read_node_page(struct page *page, int rw)
 		.encrypted_page = NULL,
 	};
 
+	if (PageUptodate(page))
+		return LOCKED_PAGE;
+
 	get_node_info(sbi, page->index, &ni);
 
 	if (unlikely(ni.blk_addr == NULL_ADDR)) {
@@ -1087,9 +1090,6 @@ static int read_node_page(struct page *page, int rw)
 		return -ENOENT;
 	}
 
-	if (PageUptodate(page))
-		return LOCKED_PAGE;
-
 	fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr;
 	return f2fs_submit_page_bio(&fio);
 }
-- 
2.8.3


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  parent reply	other threads:[~2016-07-06 16:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-06 16:06 [PATCH 1/6] f2fs: introduce f2fs_set_page_dirty_nobuffer Jaegeuk Kim
2016-07-06 16:06 ` [PATCH 2/6] f2fs: call SetPageUptodate if needed Jaegeuk Kim
2016-07-06 16:06 ` [PATCH 3/6] f2fs: shrink critical region in spin_lock Jaegeuk Kim
2016-07-06 16:06 ` Jaegeuk Kim [this message]
2016-07-06 16:06 ` [PATCH 5/6] f2fs: use percpu_rw_semaphore Jaegeuk Kim
2016-07-06 16:06 ` [PATCH 6/6] f2fs: avoid mark_inode_dirty and update_inode Jaegeuk Kim

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