diff options
Diffstat (limited to 'kernel/arch/xtensa/mm')
| -rw-r--r-- | kernel/arch/xtensa/mm/fault.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/arch/xtensa/mm/fault.c b/kernel/arch/xtensa/mm/fault.c index 83a44a33c..c9784c1b1 100644 --- a/kernel/arch/xtensa/mm/fault.c +++ b/kernel/arch/xtensa/mm/fault.c @@ -15,6 +15,7 @@ #include <linux/mm.h> #include <linux/module.h> #include <linux/hardirq.h> +#include <linux/perf_event.h> #include <linux/uaccess.h> #include <asm/mmu_context.h> #include <asm/cacheflush.h> @@ -142,6 +143,12 @@ good_area: } up_read(&mm->mmap_sem); + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); + if (flags & VM_FAULT_MAJOR) + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address); + else if (flags & VM_FAULT_MINOR) + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address); + return; /* Something tried to access memory that isn't in our memory map.. |