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-rw-r--r--arch/powerpc/mm/fault.c5
-rw-r--r--arch/x86/mm/fault.c7
-rw-r--r--include/linux/perf_counter.h4
-rw-r--r--kernel/perf_counter.c22
4 files changed, 21 insertions, 17 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index eda5b0ca4af..17bbf6f91fb 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -312,6 +312,7 @@ good_area:
}
if (ret & VM_FAULT_MAJOR) {
current->maj_flt++;
+ perf_swcounter_event(PERF_COUNT_PAGE_FAULTS_MAJ, 1, 0, regs);
#ifdef CONFIG_PPC_SMLPAR
if (firmware_has_feature(FW_FEATURE_CMO)) {
preempt_disable();
@@ -319,8 +320,10 @@ good_area:
preempt_enable();
}
#endif
- } else
+ } else {
current->min_flt++;
+ perf_swcounter_event(PERF_COUNT_PAGE_FAULTS_MIN, 1, 0, regs);
+ }
up_read(&mm->mmap_sem);
return 0;
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index c8725752b6c..f2d3324d921 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1140,10 +1140,13 @@ good_area:
return;
}
- if (fault & VM_FAULT_MAJOR)
+ if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
- else
+ perf_swcounter_event(PERF_COUNT_PAGE_FAULTS_MAJ, 1, 0, regs);
+ } else {
tsk->min_flt++;
+ perf_swcounter_event(PERF_COUNT_PAGE_FAULTS_MIN, 1, 0, regs);
+ }
check_v8086_mode(regs, address, tsk);
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 3fefc3b8150..4b14a8e9dbf 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -49,8 +49,10 @@ enum hw_event_types {
PERF_COUNT_PAGE_FAULTS = -3,
PERF_COUNT_CONTEXT_SWITCHES = -4,
PERF_COUNT_CPU_MIGRATIONS = -5,
+ PERF_COUNT_PAGE_FAULTS_MIN = -6,
+ PERF_COUNT_PAGE_FAULTS_MAJ = -7,
- PERF_SW_EVENTS_MIN = -6,
+ PERF_SW_EVENTS_MIN = -8,
};
/*
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 1773c5d7427..68950a3a52b 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -1503,6 +1503,12 @@ static void perf_swcounter_disable(struct perf_counter *counter)
perf_swcounter_update(counter);
}
+static const struct hw_perf_counter_ops perf_ops_generic = {
+ .enable = perf_swcounter_enable,
+ .disable = perf_swcounter_disable,
+ .read = perf_swcounter_read,
+};
+
/*
* Software counter: cpu wall time clock
*/
@@ -1604,16 +1610,6 @@ static const struct hw_perf_counter_ops perf_ops_task_clock = {
};
/*
- * Software counter: page faults
- */
-
-static const struct hw_perf_counter_ops perf_ops_page_faults = {
- .enable = perf_swcounter_enable,
- .disable = perf_swcounter_disable,
- .read = perf_swcounter_read,
-};
-
-/*
* Software counter: context switches
*/
@@ -1753,9 +1749,9 @@ sw_perf_counter_init(struct perf_counter *counter)
hw_ops = &perf_ops_cpu_clock;
break;
case PERF_COUNT_PAGE_FAULTS:
- if (!(counter->hw_event.exclude_user ||
- counter->hw_event.exclude_kernel))
- hw_ops = &perf_ops_page_faults;
+ case PERF_COUNT_PAGE_FAULTS_MIN:
+ case PERF_COUNT_PAGE_FAULTS_MAJ:
+ hw_ops = &perf_ops_generic;
break;
case PERF_COUNT_CONTEXT_SWITCHES:
if (!counter->hw_event.exclude_kernel)