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Diffstat (limited to 'arch/nds32/mm/fault.c')
-rw-r--r--arch/nds32/mm/fault.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/nds32/mm/fault.c b/arch/nds32/mm/fault.c
index b740534b152c..68d5f2a27f38 100644
--- a/arch/nds32/mm/fault.c
+++ b/arch/nds32/mm/fault.c
@@ -9,6 +9,7 @@
#include <linux/init.h>
#include <linux/hardirq.h>
#include <linux/uaccess.h>
+#include <linux/perf_event.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
@@ -169,8 +170,6 @@ good_area:
mask = VM_EXEC;
else {
mask = VM_READ | VM_WRITE;
- if (vma->vm_flags & VM_WRITE)
- flags |= FAULT_FLAG_WRITE;
}
} else if (entry == ENTRY_TLB_MISC) {
switch (error_code & ITYPE_mskETYPE) {
@@ -231,11 +230,17 @@ good_area:
* attempt. If we go through a retry, it is extremely likely that the
* page will be found in page cache at that point.
*/
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
if (flags & FAULT_FLAG_ALLOW_RETRY) {
- if (fault & VM_FAULT_MAJOR)
+ if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
- else
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
+ 1, regs, addr);
+ } else {
tsk->min_flt++;
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
+ 1, regs, addr);
+ }
if (fault & VM_FAULT_RETRY) {
flags &= ~FAULT_FLAG_ALLOW_RETRY;
flags |= FAULT_FLAG_TRIED;