lkml.org 
[lkml]   [2020]   [Dec]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 3/3] mm,hwpoison: Remove drain_all_pages from shake_page
Date
get_hwpoison_page already drains pcplists, previously disabling
them when trying to grab a refcount.
We do not need shake_page to take care of it anymore.

Signed-off-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
---
mm/memory-failure.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 079c6b430084..428991e297e2 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -263,8 +263,8 @@ static int kill_proc(struct to_kill *tk, unsigned long pfn, int flags)
}

/*
- * When a unknown page type is encountered drain as many buffers as possible
- * in the hope to turn the page into a LRU or free page, which we can handle.
+ * Unknown page type encountered. Try to check whether it can turn PageLRU by
+ * lru_add_drain_all, or a free page by reclaiming slabs when possible.
*/
void shake_page(struct page *p, int access)
{
@@ -273,9 +273,6 @@ void shake_page(struct page *p, int access)

if (!PageSlab(p)) {
lru_add_drain_all();
- if (PageLRU(p))
- return;
- drain_all_pages(page_zone(p));
if (PageLRU(p) || is_free_buddy_page(p))
return;
}
--
2.26.2
\
 
 \ /
  Last update: 2020-12-04 11:29    [W:1.696 / U:0.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site