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Subject[PATCH 1/2] f2fs: check inline flag ahead for f2fs_read_inline_data
Date
No matter inline data flag is set or not, get_node_page is
going work now. But actually we can avoid it by puting the
check of inline data flag in advance to save this cpu cycle.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
---

fs/f2fs/inline.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 358214e..0182106 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -81,17 +81,15 @@ int f2fs_read_inline_data(struct inode *inode, struct page *page)
{
struct page *ipage;

+ if (!f2fs_has_inline_data(inode))
+ return -EAGAIN;
+
ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino);
if (IS_ERR(ipage)) {
unlock_page(page);
return PTR_ERR(ipage);
}

- if (!f2fs_has_inline_data(inode)) {
- f2fs_put_page(ipage, 1);
- return -EAGAIN;
- }
-
if (page->index)
zero_user_segment(page, 0, PAGE_CACHE_SIZE);
else
--
2.3.7

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