[tip:sched/urgent] sched: Fix incorrect usage of for_each_cpu_mask () in select_fallback_rq()

tip-bot for Srivatsa S. Bhat
2012-03-31T09:47:26Z

Commit-ID: e3831edd59edf57ca11fc289f08961b20baf5146
Gitweb: http://git.kernel.org/tip/e3831edd59edf57ca11fc289f08961b20baf5146
Author: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
AuthorDate: Fri, 30 Mar 2012 19:40:28 +0530
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Sat, 31 Mar 2012 10:43:36 +0200

sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()

The function for_each_cpu_mask() expects a *pointer* to struct
cpumask as its second argument, whereas select_fallback_rq()
passes the value itself.

And moreover, for_each_cpu_mask() has been marked as obselete
in include/linux/cpumask.h. So move to the more appropriate
for_each_cpu() variant.

Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Dave Jones <davej@redhat.com>
Cc: Liu Chuansheng <chuansheng.liu@intel.com>
Cc: vapier@gentoo.org
Cc: rusty@rustcorp.com.au
Link: http://lkml.kernel.org/r/4F75BED4.9050005@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
kernel/sched/core.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 985f6e5..8773176 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1268,7 +1268,7 @@ static int select_fallback_rq(int cpu, struct task_struct *p)
int dest_cpu;

/* Look for allowed, online CPU in same node. */
- for_each_cpu_mask(dest_cpu, *nodemask) {
+ for_each_cpu(dest_cpu, nodemask) {
if (!cpu_online(dest_cpu))
continue;
if (!cpu_active(dest_cpu))
@@ -1279,7 +1279,7 @@ static int select_fallback_rq(int cpu, struct task_struct *p)

for (;;) {
/* Any allowed, online CPU? */
- for_each_cpu_mask(dest_cpu, *tsk_cpus_allowed(p)) {
+ for_each_cpu(dest_cpu, tsk_cpus_allowed(p)) {
if (!cpu_online(dest_cpu))
continue;
if (!cpu_active(dest_cpu))