linux-kernel - [PATCH] MAX_PAUSE to be at least 4

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: <201301210307.r0L37YuG018834@como.maths.usyd.edu.au>
Date:	Mon, 21 Jan 2013 14:07:34 +1100
From:	paul.szabo@...ney.edu.au
To:	linux-mm@...ck.org
Cc:	695182@...s.debian.org, linux-kernel@...r.kernel.org
Subject: [PATCH] MAX_PAUSE to be at least 4

Ensure MAX_PAUSE is 4 or larger, so limits in
	return clamp_val(t, 4, MAX_PAUSE);
(the only use of it) are not back-to-front.

(This patch does not solve the PAE OOM issue.)

Paul Szabo   psz@...hs.usyd.edu.au   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia

Reported-by: Paul Szabo <psz@...hs.usyd.edu.au>
Reference: http://bugs.debian.org/695182
Signed-off-by: Paul Szabo <psz@...hs.usyd.edu.au>

--- mm/page-writeback.c.old	2012-12-06 22:20:40.000000000 +1100
+++ mm/page-writeback.c	2013-01-21 13:57:05.000000000 +1100
@@ -39,7 +39,7 @@
 /*
  * Sleep at most 200ms at a time in balance_dirty_pages().
  */
-#define MAX_PAUSE		max(HZ/5, 1)
+#define MAX_PAUSE		max(HZ/5, 4)
 
 /*
  * Estimate write bandwidth at 200ms intervals.
--
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/