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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-03-06 19:49:19 +0100
committerIngo Molnar <mingo@elte.hu>2010-03-10 13:22:25 +0100
commit32975a4f114be52286f9a5bf6c230dbb8c0e1903 (patch)
treea5259dd7fb4cab05c837bace8a735a439bafc904 /kernel/rcutiny.c
parent3f6da3905398826d85731247e7fbcf53400c18bd (diff)
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perf: Optimize perf_disable
Currently we always call hw_perf_disable(), even if its already disabled, this seems superflous, esp. since it cannot be made NMI safe (see further patches). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com Cc: Arnaldo Carvalho de Melo <acme@infradead.org> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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