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authorRobert Richter <robert.richter@amd.com>2010-10-01 10:54:17 +0400
committerRobert Richter <robert.richter@amd.com>2010-10-01 10:54:17 +0400
commitef70fcc0cd5d98f5e2df82c9e598b47f351d4f66 (patch)
treeb801ba4d7ebb1155df68d530df49444ffa6252cc /block/blk.h
parent4cbe75be5c6ae86bdc7daec864eeb2dfd66f48bb (diff)
parent98d943b02f6f1b57787ff1aa6f34d019a407e3ee (diff)
downloadlinux-ef70fcc0cd5d98f5e2df82c9e598b47f351d4f66.tar.xz
Merge branch 'oprofile/urgent' into oprofile/core
Conflicts: arch/arm/oprofile/common.c Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/block/blk.h b/block/blk.h
index 6e7dc87141e4..d6b911ac002c 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -142,14 +142,18 @@ static inline int queue_congestion_off_threshold(struct request_queue *q)
static inline int blk_cpu_to_group(int cpu)
{
+ int group = NR_CPUS;
#ifdef CONFIG_SCHED_MC
const struct cpumask *mask = cpu_coregroup_mask(cpu);
- return cpumask_first(mask);
+ group = cpumask_first(mask);
#elif defined(CONFIG_SCHED_SMT)
- return cpumask_first(topology_thread_cpumask(cpu));
+ group = cpumask_first(topology_thread_cpumask(cpu));
#else
return cpu;
#endif
+ if (likely(group < NR_CPUS))
+ return group;
+ return cpu;
}
/*