linux-kernel - [PATCH 2/3] sched: don't call get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 11 Jun 2013 16:32:44 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	mingo@...hat.com, peterz@...radead.org
Cc:	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	linux-kernel@...r.kernel.org, robin.randhawa@....com,
	Steve.Bannister@....com, Liviu.Dudau@....com,
	charles.garcia-tobin@....com, arvind.chauhan@....com,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH 2/3] sched: don't call get_group() for covered cpus

In build_sched_groups() we don't need to call get_group() for cpus which are
already covered in previous iterations. So, call get_group() after checking if
cpu is covered or not.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 kernel/sched/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4abc743..27842f5 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5344,12 +5344,12 @@ build_sched_groups(struct sched_domain *sd, int cpu)
 
 	for_each_cpu(i, span) {
 		struct sched_group *sg;
-		int group = get_group(i, sdd, &sg);
-		int j;
+		int group, j;
 
 		if (cpumask_test_cpu(i, covered))
 			continue;
 
+		group = get_group(i, sdd, &sg);
 		cpumask_clear(sched_group_cpus(sg));
 		sg->sgp->power = 0;
 		cpumask_setall(sched_group_mask(sg));
-- 
1.7.12.rc2.18.g61b472e

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/