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>
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 @@
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);