[PATCH] Add unlikely to page condition

[Raghavendra D Prabhu]

Hi, 
    Added an unlikely to the page check since page will more likely be
    in the page cache because of page_cache_sync_readahead before it. 

Signed-off-by: Raghavendra D Prabhu <rprabhu@xxxxxxxxxxx>
---
 fs/splice.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/splice.c b/fs/splice.c
index aa866d3..f0e591a 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -349,7 +349,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
 		 * the first hole.
 		 */
 		page = find_get_page(mapping, index);
-		if (!page) {
+		if (unlikely(!page)) {
 			/*
 			 * page didn't exist, allocate one.
 			 */
--
1.7.6

--------------------------
Raghavendra Prabhu
GPG Id : 0xD72BE977
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www: wnohang.net
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