diff options
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/mm/fault.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c index 5beb25ca1c79..aeb9a5f11e00 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -17,6 +17,7 @@ #include <linux/vt_kern.h> #include <linux/extable.h> #include <linux/uaccess.h> +#include <linux/perf_event.h> #include <asm/hardirq.h> #include <asm/mmu_context.h> @@ -106,6 +107,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, return; } #endif + + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); /* * If we're in an interrupt or have no user * context, we must not take the fault.. @@ -153,10 +156,15 @@ good_area: goto bad_area; BUG(); } - 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, + address); + } else { tsk->min_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, + address); + } up_read(&mm->mmap_sem); return; |