The patch titled
Subject: mm: memory-failure: remove unneeded page state check in shake_page()
has been added to the -mm mm-unstable branch. Its filename is
mm-memory-failure-remove-unneeded-page-state-check-in-shake_page.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memory-failure-remove-unneeded-page-state-check-in-shake_page.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: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm: memory-failure: remove unneeded page state check in shake_page()
Date: Wed, 28 Jun 2023 09:49:29 +0800
Remove unneeded PageLRU(p) and is_free_buddy_page(p) check as slab caches
are not shrunk now. This check can be added back when a lightweight range
based shrinker is available.
Link: https://lkml.kernel.org/r/20230628014929.3441386-1-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Acked-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory-failure.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
--- a/mm/memory-failure.c~mm-memory-failure-remove-unneeded-page-state-check-in-shake_page
+++ a/mm/memory-failure.c
@@ -363,17 +363,14 @@ void shake_page(struct page *p)
{
if (PageHuge(p))
return;
-
- if (!PageSlab(p)) {
- lru_add_drain_all();
- if (PageLRU(p) || is_free_buddy_page(p))
- return;
- }
-
/*
* TODO: Could shrink slab caches here if a lightweight range-based
* shrinker will be available.
*/
+ if (PageSlab(p))
+ return;
+
+ lru_add_drain_all();
}
EXPORT_SYMBOL_GPL(shake_page);
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
mm-mm_initc-update-obsolete-comment-in-get_pfn_range_for_nid.patch
mm-memory-failure-fix-unexpected-return-value-in-soft_offline_page.patch
mm-memory-failure-fix-potential-page-refcnt-leak-in-memory_failure.patch
mm-memory-failure-remove-unneeded-page-state-check-in-shake_page.patch
