Commit b83699ea authored by Huacai Chen's avatar Huacai Chen
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LoongArch: mm: Avoid unnecessary page fault retires on shared memory types 



Commit d9272525 ("mm: avoid unnecessary page fault retires on
shared memory types") modifies do_page_fault() to handle the VM_FAULT_
COMPLETED case, but forget to change for LoongArch, so fix it as other
architectures does.

Fixes: d9272525 ("mm: avoid unnecessary page fault retires on shared memory types")
Reviewed-by: default avatarGuo Ren <guoren@kernel.org>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 720dc7ab

arch/loongarch/mm/fault.c

+4 −0
Original line number Diff line number Diff line
@@ -216,6 +216,10 @@ static void __kprobes __do_page_fault(struct pt_regs *regs, 
		return;

	}



	/* The fault is fully completed (including releasing mmap lock) */

	if (fault & VM_FAULT_COMPLETED)

		return;



	if (unlikely(fault & VM_FAULT_RETRY)) {

		flags |= FAULT_FLAG_TRIED;