diff options
| author | Matthew Wilcox <mawilcox@microsoft.com> | 2017-02-08 10:27:54 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2017-02-08 10:27:54 +1100 |
| commit | b8a516bfee45f8c1867532ed4bafbed2db02666d (patch) | |
| tree | 260856bfc1a14afa6cb7f6e573b4b28649b01609 /lib | |
| parent | 0c6bdf25d9d601cffa733f6bad7433778dd5861c (diff) | |
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>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/find_bit.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/find_bit.c b/lib/find_bit.c index 7d4a681d625f..6ed74f78380c 100644 --- a/lib/find_bit.c +++ b/lib/find_bit.c @@ -151,7 +151,7 @@ static unsigned long _find_next_bit_le(const unsigned long *addr, { unsigned long tmp; - if (!nbits || start >= nbits) + if (unlikely(start >= nbits)) return nbits; tmp = addr[start / BITS_PER_LONG] ^ invert; |