perf_counter: convert perf_resource_mutex to a spinlock

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Now percpu counters can be initialized very early. But the init
sequence uses mutex_lock(). Fortunately, perf_resource_mutex should
be a spinlock anyway, so convert it.

[ Impact: fix crash due to early init mutex use ]

LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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This commit is contained in:

Ingo Molnar 2009-05-04 19:23:18 +02:00

parent 0d905bca23

commit 1dce8d99b8

1 changed files with 8 additions and 8 deletions

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kernel/perf_counter.c

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