Messages in this thread Patch in this message | | | From | Peter Xu <> | Subject | [PATCH 06/26] mm/csky: Use general page fault accounting | Date | Fri, 19 Jun 2020 12:05:18 -0400 |
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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: Guo Ren <guoren@kernel.org> CC: linux-csky@vger.kernel.org Signed-off-by: Peter Xu <peterx@redhat.com> --- 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 b14f97d3cb15..a3e0aa3ebb79 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -151,7 +151,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, * 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 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write, 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); - } - up_read(&mm->mmap_sem); return; -- 2.26.2
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