From 36ef159f4408b08eae7f2af6d62bedd3f4343758 Mon Sep 17 00:00:00 2001
From: Qi Zheng <zhengqi.arch@bytedance.com>
Date: Fri, 14 Jan 2022 14:05:51 -0800
Subject: mm: remove redundant check about FAULT_FLAG_ALLOW_RETRY bit

Since commit 4064b9827063 ("mm: allow VM_FAULT_RETRY for multiple
times") allowed VM_FAULT_RETRY for multiple times, the
FAULT_FLAG_ALLOW_RETRY bit of fault_flag will not be changed in the page
fault path, so the following check is no longer needed:

	flags & FAULT_FLAG_ALLOW_RETRY

So just remove it.

[akpm@linux-foundation.org: coding style fixes]

Link: https://lkml.kernel.org/r/20211110123358.36511-1-zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: Peter Xu <peterx@redhat.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm64/mm/fault.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'arch/arm64/mm')

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 9ae24e3b72be..a8fb54fccde0 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -606,10 +606,8 @@ retry:
 	}
 
 	if (fault & VM_FAULT_RETRY) {
-		if (mm_flags & FAULT_FLAG_ALLOW_RETRY) {
-			mm_flags |= FAULT_FLAG_TRIED;
-			goto retry;
-		}
+		mm_flags |= FAULT_FLAG_TRIED;
+		goto retry;
 	}
 	mmap_read_unlock(mm);
 
-- 
cgit