From b8a516bfee45f8c1867532ed4bafbed2db02666d Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <mawilcox@microsoft.com>
Date: Wed, 8 Feb 2017 10:27:54 +1100
Subject: find_bit-micro-optimise-find_next__bit-v2

Link: http://lkml.kernel.org/r/1483709016-1834-1-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Yury Norov <ynorov@caviumnetworks.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 tools/lib/find_bit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'tools/lib')

diff --git a/tools/lib/find_bit.c b/tools/lib/find_bit.c
index 6d8b8f22cf55..42c15f906aac 100644
--- a/tools/lib/find_bit.c
+++ b/tools/lib/find_bit.c
@@ -34,7 +34,7 @@ static unsigned long _find_next_bit(const unsigned long *addr,
 {
 	unsigned long tmp;
 
-	if (!nbits || start >= nbits)
+	if (unlikely(start >= nbits))
 		return nbits;
 
 	tmp = addr[start / BITS_PER_LONG] ^ invert;
-- 
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