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(parent: da417a7) | patch
perf_counter/x86: Always use NMI for performance-monitoring interrupt
authorYong Wang <yong.y.wang@linux.intel.com>
Fri, 29 May 2009 05:28:35 +0000 (13:28 +0800)
committerIngo Molnar <mingo@elte.hu>
Fri, 29 May 2009 07:04:58 +0000 (09:04 +0200)
commitc323d95fa4dbe0b6bf6d59e24a0b7db067dd08a7
tree4e674688eb9ba7a84ab34db4bf51cfca34edf6edtree | snapshot (tar.gz zip)
parentda417a7537cbf4beb28a08a49adf915f2358040ccommit | diff
perf_counter/x86: Always use NMI for performance-monitoring interrupt

Always use NMI for performance-monitoring interrupt as there could be
racy situations if we switch between irq and nmi mode frequently.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
LKML-Reference: <20090529052835.GA13657@ywang-moblin2.bj.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/include/asm/perf_counter.h diff | blob | blame | history
arch/x86/kernel/apic/apic.c diff | blob | blame | history
arch/x86/kernel/cpu/perf_counter.c diff | blob | blame | history