From: Hillf Danton <dhillf@gmail.com>
To: linux-mm@kvack.org
Cc: LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.cz>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: [PATCH] mm: hugetlb: avoid bogus counter of surplus huge page
Date: Fri, 23 Dec 2011 21:38:38 +0800 [thread overview]
Message-ID: <CAJd=RBCS3-PoFa3FUVwhiznPTQH5xq7fTYa3m01a0-buACQbCA@mail.gmail.com> (raw)
From: Hillf Danton <dhillf@gmail.com>
Subject: [PATCH] mm: hugetlb: avoid bogus counter of surplus huge page
If we have to hand back the newly allocated huge page to page allocator,
for any reason, the changed counter should be recovered.
Cc: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hillf Danton <dhillf@gmail.com>
---
--- a/mm/hugetlb.c Tue Dec 20 21:26:30 2011
+++ b/mm/hugetlb.c Fri Dec 23 21:18:06 2011
@@ -800,7 +800,7 @@ static struct page *alloc_buddy_huge_pag
if (page && arch_prepare_hugepage(page)) {
__free_pages(page, huge_page_order(h));
- return NULL;
+ page = NULL;
}
spin_lock(&hugetlb_lock);
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next reply other threads:[~2011-12-23 13:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-23 13:38 Hillf Danton [this message]
2011-12-26 7:28 ` [PATCH] mm: hugetlb: avoid bogus counter of surplus huge page KAMEZAWA Hiroyuki
2011-12-27 12:57 ` Michal Hocko
2011-12-27 23:51 ` Andrew Morton
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='CAJd=RBCS3-PoFa3FUVwhiznPTQH5xq7fTYa3m01a0-buACQbCA@mail.gmail.com' \
--to=dhillf@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.cz \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).