Since "need_inplace_update() == true" is a very rare case, using unlikely()
to give compiler a chance to optimize the code.
Signed-off-by: Haicheng Li <haicheng...@linux.intel.com>
---
fs/f2fs/data.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 5b145fc..6d4a743 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -497,8 +497,9 @@ int do_write_data_page(struct page *page)
* If current allocation needs SSR,
* it had better in-place writes for updated data.
*/
- if (old_blk_addr != NEW_ADDR && !is_cold_data(page) &&
- need_inplace_update(inode)) {
+ if (unlikely(old_blk_addr != NEW_ADDR &&
+ !is_cold_data(page) &&
+ need_inplace_update(inode))) {
rewrite_data_page(F2FS_SB(inode->i_sb), page,
old_blk_addr);
} else {
--
1.7.9.5
--
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