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| author | Haicheng Li <haicheng.li@linux.intel.com> | 2013-06-13 16:59:29 +0800 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-05-15 07:21:27 +0200 |
| commit | 6570bc3b9cdf49f70ad3f34f83621523d9ce235f (patch) | |
| tree | 67260d6f8e330f4d22f979d9c0fefc280d51694e /fs | |
| parent | 2b1372eab146ffe9f7d8dbbf3fca2629035b5323 (diff) | |
| download | linux-3.10-6570bc3b9cdf49f70ad3f34f83621523d9ce235f.tar.gz linux-3.10-6570bc3b9cdf49f70ad3f34f83621523d9ce235f.tar.bz2 linux-3.10-6570bc3b9cdf49f70ad3f34f83621523d9ce235f.zip | |
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')
| -rw-r--r-- | fs/f2fs/data.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 5b145fcc286..6d4a743caf8 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 { |