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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-05-20 09:42:28 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-05-28 15:03:01 +0900 |
| commit | 1646cfac952ff87fcbc18a77164472aa61d08094 (patch) | |
| tree | 5ec3a1a864e8067d9b16a6f11df3177b18207cab /fs/f2fs/node.c | |
| parent | 0a364af18f27b86869149c4d128262ec1e0ccb25 (diff) | |
| download | linux-stable-1646cfac952ff87fcbc18a77164472aa61d08094.tar.gz linux-stable-1646cfac952ff87fcbc18a77164472aa61d08094.tar.bz2 linux-stable-1646cfac952ff87fcbc18a77164472aa61d08094.zip | |
f2fs: skip get_node_page if locked node page is passed
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>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 96415345a428..f63f0a4046c6 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); |