[merged mm-stable] mm-gup-use-maple-tree-navigation-instead-of-linked-list.patch removed from -mm tree

[merged mm-stable] mm-gup-use-maple-tree-navigation-instead-of-linked-list.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/gup: use maple tree navigation instead of linked list
has been removed from the -mm tree.  Its filename was
     mm-gup-use-maple-tree-navigation-instead-of-linked-list.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@Oracle.com>
Subject: mm/gup: use maple tree navigation instead of linked list
Date: Tue, 6 Sep 2022 19:49:00 +0000

Use find_vma_intersection() to locate the VMAs in __mm_populate() instead
of using find_vma() and the linked list.

Link: https://lkml.kernel.org/r/20220906194824.2110408-52-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Tested-by: Yu Zhao <yuzhao@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/gup.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/mm/gup.c~mm-gup-use-maple-tree-navigation-instead-of-linked-list
+++ a/mm/gup.c
@@ -1686,10 +1686,11 @@ int __mm_populate(unsigned long start, u
 		if (!locked) {
 			locked = 1;
 			mmap_read_lock(mm);
-			vma = find_vma(mm, nstart);
+			vma = find_vma_intersection(mm, nstart, end);
 		} else if (nstart >= vma->vm_end)
-			vma = vma->vm_next;
-		if (!vma || vma->vm_start >= end)
+			vma = find_vma_intersection(mm, vma->vm_end, end);
+
+		if (!vma)
 			break;
 		/*
 		 * Set [nstart; nend) to intersection of desired address
_

Patches currently in -mm which might be from Liam.Howlett@Oracle.com are