From: Tejun Heo <tj@kernel.org>
Date: Fri, 2 Jul 2010 08:03:51 +0000 (+0200)
Subject: workqueue: fix incorrect cpu number BUG_ON() in get_work_gcwq()
X-Git-Tag: v2.6.36-rc1~506^2~20
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a1e453d2799760ecf2e09ecd45b80edbe7ff540e;p=thirdparty%2Fkernel%2Flinux.git

workqueue: fix incorrect cpu number BUG_ON() in get_work_gcwq()

get_work_gcwq() was incorrectly triggering BUG_ON() if cpu number is
equal to or higher than num_possible_cpus() instead of nr_cpu_ids.
Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index b59c946433f4b..0c485a5380990 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -445,7 +445,7 @@ static struct global_cwq *get_work_gcwq(struct work_struct *work)
 	if (cpu == NR_CPUS)
 		return NULL;
 
-	BUG_ON(cpu >= num_possible_cpus());
+	BUG_ON(cpu >= nr_cpu_ids);
 	return get_gcwq(cpu);
 }