The patch titled
Subject: mm/vmscan: Use vma iterator instead of vm_next
has been added to the -mm mm-unstable branch. Its filename is
mm-vmscan-use-vma-iterator-instead-of-vm_next.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmscan-use-vma-iterator-instead-of-vm_next.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Liam Howlett <liam.howlett@xxxxxxxxxx>
Subject: mm/vmscan: Use vma iterator instead of vm_next
Date: Mon, 22 Aug 2022 15:06:33 +0000
Use the vma iterator in in get_next_vma() instead of the linked list.
Link: https://lkml.kernel.org/r/20220822150128.1562046-68-Liam.Howlett@xxxxxxxxxx
Suggested-by: Yu Zhao <yuzhao@xxxxxxxxxx>
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Cc: SeongJae Park <sj@xxxxxxxxxx>
Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 15 +++------------
1 file changed, 3 insertions(+), 12 deletions(-)
--- a/mm/vmscan.c~mm-vmscan-use-vma-iterator-instead-of-vm_next
+++ a/mm/vmscan.c
@@ -3776,23 +3776,14 @@ static bool get_next_vma(unsigned long m
{
unsigned long start = round_up(*vm_end, size);
unsigned long end = (start | ~mask) + 1;
+ VMA_ITERATOR(vmi, args->mm, start);
VM_WARN_ON_ONCE(mask & size);
VM_WARN_ON_ONCE((start & mask) != (*vm_start & mask));
- while (args->vma) {
- if (start >= args->vma->vm_end) {
- args->vma = args->vma->vm_next;
+ for_each_vma_range(vmi, args->vma, end) {
+ if (should_skip_vma(args->vma->vm_start, args->vma->vm_end, args))
continue;
- }
-
- if (end && end <= args->vma->vm_start)
- return false;
-
- if (should_skip_vma(args->vma->vm_start, args->vma->vm_end, args)) {
- args->vma = args->vma->vm_next;
- continue;
- }
*vm_start = max(start, args->vma->vm_start);
*vm_end = min(end - 1, args->vma->vm_end - 1) + 1;
_
Patches currently in -mm which might be from liam.howlett@xxxxxxxxxx are
binder_alloc-add-missing-mmap_lock-calls-when-using-the-vma.patch
mm-vmscan-use-vma-iterator-instead-of-vm_next.patch
