Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ef4f30f5 authored by Cyrill Gorcunov's avatar Cyrill Gorcunov Committed by Ingo Molnar
Browse files

perf, x86: P4 PMU -- fix typo in unflagged NMI handling 



Tested-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarCyrill Gorcunov <gorcunov@openvz.org>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
LKML-Reference: <1274174954.22793.17.camel@minggr.sh.intel.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 0db1a7bc

arch/x86/kernel/cpu/perf_event_p4.c

+1 −1
Original line number Diff line number Diff line
@@ -473,7 +473,7 @@ static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc) 
	rdmsr(hwc->config_base + hwc->idx, low, high);



	/* we need to check high bit for unflagged overflows */

	if ((low & P4_CCCR_OVF) || (high & (1 << 31))) {

	if ((low & P4_CCCR_OVF) || !(high & (1 << 31))) {

		overflow = 1;

		(void)checking_wrmsrl(hwc->config_base + hwc->idx,

			((u64)low) & ~P4_CCCR_OVF);