From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org, minchan@kernel.org,
akpm@linux-foundation.org, richard.weiyang@gmail.com,
akpm@linux-foundation.org
Subject: [merged mm-stable] mm-vmscan-filter-empty-page_list-at-the-beginning.patch removed from -mm tree
Date: Fri, 13 May 2022 12:21:37 -0700 [thread overview]
Message-ID: <20220513192138.1F0B3C34100@smtp.kernel.org> (raw)
The quilt patch titled
Subject: mm/vmscan: filter empty page_list at the beginning
has been removed from the -mm tree. Its filename was
mm-vmscan-filter-empty-page_list-at-the-beginning.patch
This patch was dropped because it was merged into the mm-stable branch\nof git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Wei Yang <richard.weiyang@gmail.com>
Subject: mm/vmscan: filter empty page_list at the beginning
node_page_list would always be !empty on finishing the loop, except
page_list is empty.
Let's handle empty page_list before doing any real work including touching
PF_MEMALLOC flag.
Link: https://lkml.kernel.org/r/20220429014426.29223-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/vmscan.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
--- a/mm/vmscan.c~mm-vmscan-filter-empty-page_list-at-the-beginning
+++ a/mm/vmscan.c
@@ -2568,9 +2568,12 @@ unsigned long reclaim_pages(struct list_
struct page *page;
unsigned int noreclaim_flag;
+ if (list_empty(page_list))
+ return nr_reclaimed;
+
noreclaim_flag = memalloc_noreclaim_save();
- while (!list_empty(page_list)) {
+ do {
page = lru_to_page(page_list);
if (nid == NUMA_NO_NODE)
nid = page_to_nid(page);
@@ -2583,10 +2586,9 @@ unsigned long reclaim_pages(struct list_
nr_reclaimed += reclaim_page_list(&node_page_list, NODE_DATA(nid));
nid = NUMA_NO_NODE;
- }
+ } while (!list_empty(page_list));
- if (!list_empty(&node_page_list))
- nr_reclaimed += reclaim_page_list(&node_page_list, NODE_DATA(nid));
+ nr_reclaimed += reclaim_page_list(&node_page_list, NODE_DATA(nid));
memalloc_noreclaim_restore(noreclaim_flag);
_
Patches currently in -mm which might be from richard.weiyang@gmail.com are
reply other threads:[~2022-05-13 19:22 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220513192138.1F0B3C34100@smtp.kernel.org \
--to=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=minchan@kernel.org \
--cc=mm-commits@vger.kernel.org \
--cc=richard.weiyang@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.