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: Yoshinori Sato <[email protected]> CC: Rich Felker <[email protected]> CC: [email protected] Signed-off-by: Peter Xu <[email protected]> --- arch/sh/mm/fault.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index a4e670a9c9b3..ba6f7ed570e5 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -464,22 +464,13 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, * make sure we exit gracefully rather than endlessly redo * the fault. */ - fault = handle_mm_fault(vma, address, flags, NULL); + fault = handle_mm_fault(vma, address, flags, regs); if (unlikely(fault & (VM_FAULT_RETRY | VM_FAULT_ERROR))) if (mm_fault_error(regs, error_code, address, fault)) return; if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_MAJOR) { - tsk->maj_flt++; - 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); - } if (fault & VM_FAULT_RETRY) { flags |= FAULT_FLAG_TRIED; -- 2.26.2
