lkml.org 
[lkml]   [2021]   [Dec]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 62/66] mm/swapfile: Use maple tree iterator instead of vma linked list
Date
From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
mm/swapfile.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index e59e08ef46e1..21c88b0944f9 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2103,15 +2103,18 @@ static int unuse_mm(struct mm_struct *mm, unsigned int type,
{
struct vm_area_struct *vma;
int ret = 0;
+ MA_STATE(mas, &mm->mm_mt, 0, 0);

mmap_read_lock(mm);
- for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ mas_for_each(&mas, vma, ULONG_MAX) {
if (vma->anon_vma) {
ret = unuse_vma(vma, type, frontswap,
fs_pages_to_unuse);
if (ret)
break;
}
+
+ mas_pause(&mas);
cond_resched();
}
mmap_read_unlock(mm);
--
2.30.2
\
 
 \ /
  Last update: 2021-12-01 15:39    [W:1.140 / U:2.500 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site