From a2a9e439baf8aca2af1e614fab7956c09091a6d1 Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Tue, 11 Aug 2020 18:38:00 -0700 Subject: [PATCH] mm/csky: use general page fault accounting 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. Signed-off-by: Peter Xu Signed-off-by: Andrew Morton Acked-by: Guo Ren Link: http://lkml.kernel.org/r/20200707225021.200906-7-peterx@redhat.com Signed-off-by: Linus Torvalds --- arch/csky/mm/fault.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c index b252e6e4d32f..081b178b41b1 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -151,7 +151,7 @@ good_area: * the fault. */ fault = handle_mm_fault(vma, address, write ? FAULT_FLAG_WRITE : 0, - NULL); + regs); if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; @@ -161,16 +161,6 @@ good_area: goto bad_area; BUG(); } - 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); - } - mmap_read_unlock(mm); return;