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percpu: fix percpu accessors to potentially !cpu_possible() cpus: m32r

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Impact: CPU iterator bugfixes

Percpu areas are only allocated for possible cpus.  In general, you
shouldn't access random cpu's percpu areas.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
This commit is contained in:
Rusty Russell
2009-01-01 10:12:14 +10:30
parent 6aaa8ce523
commit 9e2f913df7
1 changed files with 1 additions and 1 deletions
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arch/m32r/kernel/smpboot.c
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@@ -592,7 +592,7 @@ int setup_profiling_timer(unsigned int multiplier)
* accounting. At that time they also adjust their APIC timers * accounting. At that time they also adjust their APIC timers
* accordingly. * accordingly.
*/ */
for (i = 0; i < NR_CPUS; ++i) for_each_possible_cpu(i)
per_cpu(prof_multiplier, i) = multiplier; per_cpu(prof_multiplier, i) = multiplier;
return 0; return 0;