Use the general page fault accounting by passing regs into handle_mm_fault(). It naturally solve the issue of multiple page fault accounting when page fault retry happened.
CC: David S. Miller <[email protected]> CC: [email protected] Signed-off-by: Peter Xu <[email protected]> --- arch/sparc/mm/fault_64.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c index 6b702a0a8155..fe8854d447ed 100644 --- a/arch/sparc/mm/fault_64.c +++ b/arch/sparc/mm/fault_64.c @@ -423,7 +423,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) goto bad_area; } - fault = handle_mm_fault(vma, address, flags, NULL); + fault = handle_mm_fault(vma, address, flags, regs); if (fault_signal_pending(fault, regs)) goto exit_exception; @@ -439,15 +439,6 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) } if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_MAJOR) { - current->maj_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, - 1, regs, address); - } else { - current->min_flt++; - perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, - 1, regs, address); - } if (fault & VM_FAULT_RETRY) { flags |= FAULT_FLAG_TRIED; -- 2.26.2
