From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH 06/15] f2fs: skip get_node_page if locked node page is passed
Date: Mon, 20 May 2013 12:32:20 +0900 [thread overview]
Message-ID: <1369020743-18520-6-git-send-email-jaegeuk.kim@samsung.com> (raw)
In-Reply-To: <1369020743-18520-1-git-send-email-jaegeuk.kim@samsung.com>
If get_dnode_of_data gets a locked node page, let's skip redundant
get_node_page calls.
This is for the futher enhancement.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
fs/f2fs/node.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 9641534..f63f0a4 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -408,10 +408,13 @@ int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
level = get_node_path(index, offset, noffset);
nids[0] = dn->inode->i_ino;
- npage[0] = get_node_page(sbi, nids[0]);
- if (IS_ERR(npage[0]))
- return PTR_ERR(npage[0]);
+ npage[0] = dn->inode_page;
+ if (!npage[0]) {
+ npage[0] = get_node_page(sbi, nids[0]);
+ if (IS_ERR(npage[0]))
+ return PTR_ERR(npage[0]);
+ }
parent = npage[0];
if (level != 0)
nids[1] = get_nid(parent, offset[0], true);
--
1.8.1.3.566.gaa39828
next prev parent reply other threads:[~2013-05-20 3:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 3:32 [PATCH 01/15] f2fs: remove redundant assignment Jaegeuk Kim
2013-05-20 3:32 ` [PATCH 02/15] f2fs: remove unnecessary flag set Jaegeuk Kim
2013-05-20 7:31 ` Jaegeuk Kim
2013-05-20 3:32 ` [PATCH 03/15] f2fs: fix por_doing variable coverage Jaegeuk Kim
2013-05-20 3:32 ` [PATCH 04/15] f2fs: fix BUG_ON during f2fs_evict_inode(dir) Jaegeuk Kim
2013-05-20 3:32 ` [PATCH 05/15] f2fs: remove unnecessary por_doing check Jaegeuk Kim
2013-05-20 3:32 ` Jaegeuk Kim [this message]
2013-05-20 3:32 ` [PATCH 07/15] f2fs: change get_new_data_page to pass a locked node page Jaegeuk Kim
2013-05-20 3:32 ` [PATCH 08/15] f2fs: update inode page after creation Jaegeuk Kim
2013-05-20 3:32 ` [PATCH 09/15] f2fs: add debug msgs in the recovery routine Jaegeuk Kim
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