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| author | Robert Richter <robert.richter@amd.com> | 2010-10-11 19:26:50 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-10-11 19:26:50 +0200 |
| commit | ad0f7cfaa85fc033523a09ab1f3dd6b8ded3dff5 (patch) | |
| tree | 2565121e4b9945d953e02c77a2e53065b3789aa4 /block/blk.h | |
| parent | 86c8c04792f152c5469023885510140dd34817bc (diff) | |
| parent | c7a27aa4652c63172489a73f3961455650a79a7f (diff) | |
Merge branch 'oprofile/urgent' (early part) into oprofile/perf
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/block/blk.h b/block/blk.h index 6e7dc87141e..d6b911ac002 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; } /* |