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 <davem@xxxxxxxxxxxxx>
CC: sparclinux@xxxxxxxxxxxxxxx
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
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
