From: Chao Yu <chao2.yu@samsung.com>
To: ??? <jaegeuk.kim@samsung.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH 2/5] f2fs: add unlikely macro for compiler optimization
Date: Thu, 28 Nov 2013 15:42:35 +0800 [thread overview]
Message-ID: <003301ceec0d$77ddaef0$67990cd0$@samsung.com> (raw)
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
---
fs/f2fs/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 0fe9a97..954155b 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1160,7 +1160,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
struct page *page = pvec.pages[i];
/* until radix tree lookup accepts end_index */
- if (page->index > end)
+ if (unlikely(page->index > end))
continue;
if (ino && ino_of_node(page) == ino) {
--
1.7.9.5
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WARNING: multiple messages have this Message-ID (diff)
From: Chao Yu <chao2.yu@samsung.com>
To: ??? <jaegeuk.kim@samsung.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net, 谭姝 <shu.tan@samsung.com>
Subject: [f2fs-dev] [PATCH 2/5] f2fs: add unlikely macro for compiler optimization
Date: Thu, 28 Nov 2013 15:42:35 +0800 [thread overview]
Message-ID: <003301ceec0d$77ddaef0$67990cd0$@samsung.com> (raw)
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
---
fs/f2fs/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 0fe9a97..954155b 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1160,7 +1160,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
struct page *page = pvec.pages[i];
/* until radix tree lookup accepts end_index */
- if (page->index > end)
+ if (unlikely(page->index > end))
continue;
if (ino && ino_of_node(page) == ino) {
--
1.7.9.5
next reply other threads:[~2013-11-28 7:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-28 7:42 Chao Yu [this message]
2013-11-28 7:42 ` [f2fs-dev] [PATCH 2/5] f2fs: add unlikely macro for compiler optimization Chao Yu
2013-11-29 10:14 ` Jaegeuk Kim
2013-11-29 10:14 ` Jaegeuk Kim
2013-12-02 4:32 ` Chao Yu
2013-12-02 4:32 ` [f2fs-dev] " Chao Yu
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