From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Mon, 27 Jul 2020 23:03:11 +0000 (-0400)
Subject: mm/mmap: Drop mas.node check.
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e5bb8a3e518617a53c7b78d677c5dee0b963d70c;p=users%2Fjedix%2Flinux-maple.git

mm/mmap: Drop mas.node check.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/mm/mmap.c b/mm/mmap.c
index 7002a15e0b00b..6628c53c6ae9f 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -457,9 +457,6 @@ static bool range_has_overlap(struct mm_struct *mm, unsigned long start,
 
 	MA_STATE(mas, &mm->mm_mt, start, start);
 	existing = mas_find(&mas, end - 1);
-	if (mas.node == MAS_NONE)
-		mas_reset(&mas);
-
 	*pprev = mas_prev(&mas, 0);
 	return existing ? true : false;
 }
@@ -2146,9 +2143,6 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
 
 	rcu_read_lock();
 	vma = mas_find(&mas, ULONG_MAX);
-	if (mas.node == MAS_NONE)
-		mas_reset(&mas);
-
 	*pprev = mas_prev(&mas, 0);
 	rcu_read_unlock();
 	return vma;