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authorHaicheng Li <haicheng.li@linux.intel.com>2013-06-13 16:59:29 +0800
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-06-14 09:04:44 +0900
commitb25958b6ecf1dce087e62b9aa27cf8f2fe9b5c86 (patch)
treea4213d64c10bd7994e8fefce1bf1f64cd81c9288 /fs/f2fs
parent8d8451af6875f8841dc20987d1363405020a9172 (diff)
downloadop-kernel-dev-b25958b6ecf1dce087e62b9aa27cf8f2fe9b5c86.zip
op-kernel-dev-b25958b6ecf1dce087e62b9aa27cf8f2fe9b5c86.tar.gz
f2fs: optimize do_write_data_page()
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.li@linux.intel.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/data.c5
1 files 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 {
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