diff options
| author | Huacai Chen <chenhuacai@loongson.cn> | 2022-08-25 19:34:59 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2022-08-25 19:34:59 +0800 |
| commit | b83699ea1e62951857c2d8648bd93a4744899eb7 (patch) | |
| tree | d54822f462f95d4876157cc4de500aec9e863a98 /arch/loongarch | |
| parent | 720dc7ab252bbdf404cab7b909e26b31e602bf7e (diff) | |
LoongArch: mm: Avoid unnecessary page fault retires on shared memory types
Commit d92725256b4f22d0 ("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: d92725256b4f22d0 ("mm: avoid unnecessary page fault retires on shared memory types")
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch')
| -rw-r--r-- | arch/loongarch/mm/fault.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/loongarch/mm/fault.c b/arch/loongarch/mm/fault.c index 605579b19a00..1ccd53655cab 100644 --- a/arch/loongarch/mm/fault.c +++ b/arch/loongarch/mm/fault.c @@ -216,6 +216,10 @@ good_area: 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; |