The quilt patch titled
Subject: mm: convert vma_lookup() to use mtree_load()
has been removed from the -mm tree. Its filename was
mm-convert-vma_lookup-to-use-mtree_load.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Subject: mm: convert vma_lookup() to use mtree_load()
Date: Tue, 6 Sep 2022 19:48:51 +0000
Unlike the rbtree, the Maple Tree will return a NULL if there's nothing at
a particular address.
Since the previous commit dropped the vmacache, it is now possible to
consult the tree directly.
Link: https://lkml.kernel.org/r/20220906194824.2110408-27-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Tested-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Davidlohr Bueso <dave@xxxxxxxxxxxx>
Cc: SeongJae Park <sj@xxxxxxxxxx>
Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
--- a/include/linux/mm.h~mm-convert-vma_lookup-to-use-mtree_load
+++ a/include/linux/mm.h
@@ -2795,12 +2795,7 @@ struct vm_area_struct *find_vma_intersec
static inline
struct vm_area_struct *vma_lookup(struct mm_struct *mm, unsigned long addr)
{
- struct vm_area_struct *vma = find_vma(mm, addr);
-
- if (vma && addr < vma->vm_start)
- vma = NULL;
-
- return vma;
+ return mtree_load(&mm->mm_mt, addr);
}
static inline unsigned long vm_start_gap(struct vm_area_struct *vma)
_
Patches currently in -mm which might be from Liam.Howlett@xxxxxxxxxx are
