linux-kernel - [PATCH 1/3] balancenuma: put page if avoid migrating page

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAJd=RBB+SGundq6jOR0n01jQhAnEf0T5br7_3SQB7-OPuGkgzg@mail.gmail.com>
Date:	Tue, 27 Nov 2012 21:23:59 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	Mel Gorman <mgorman@...e.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Hillf Danton <dhillf@...il.com>
Subject: [PATCH 1/3] balancenuma: put page if avoid migrating page

If we have to avoid migrating to a node that is nearly full, put page
and return zero.

Signed-off-by: Hillf Danton <dhillf@...il.com>
---

--- a/mm/migrate.c	Tue Nov 27 20:09:38 2012
+++ b/mm/migrate.c	Tue Nov 27 20:15:00 2012
@@ -1538,9 +1538,11 @@ int numamigrate_isolate_page(pg_data_t *
 			mod_zone_page_state(page_zone(page),
 					NR_ISOLATED_ANON + page_lru,
 					HPAGE_PMD_NR);
+		return 1;
 	}

-	return 1;
+	put_page(page);
+	return 0;
 }

 /*
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/