From: Joe Perches <joe@perches.com>
Date: Tue, 28 Jan 2014 01:07:14 +0000 (-0800)
Subject: softirq: use ffs() in __do_softirq()
X-Git-Tag: v3.14-rc1~79^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2e702b9f6cba4eb87d90e2a2d425a1fc05eec803;p=pandora-kernel.git

softirq: use ffs() in __do_softirq()

Possible speed improvement of __do_softirq() by using ffs() instead of
using a while loop with an & 1 test then single bit shift.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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