From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 459FC6B005C for ; Tue, 26 May 2009 17:01:14 -0400 (EDT) Date: Tue, 26 May 2009 14:01:10 -0700 From: Andrew Morton Subject: Re: [PATCH] Warn if we run out of swap space Message-Id: <20090526140110.c4a100fb.akpm@linux-foundation.org> In-Reply-To: References: <20090524144056.0849.A69D9226@jp.fujitsu.com> <4A1A057A.3080203@oracle.com> <20090526032934.GC9188@linux-sh.org> <20090526131540.70fd410a.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Christoph Lameter Cc: lethal@linux-sh.org, randy.dunlap@oracle.com, kosaki.motohiro@jp.fujitsu.com, linux-mm@kvack.org, pavel@ucw.cz, dave@linux.vnet.ibm.com List-ID: On Tue, 26 May 2009 16:54:58 -0400 (EDT) Christoph Lameter wrote: > On Tue, 26 May 2009, Andrew Morton wrote: > > > I still worry that there may be usage patterns which will result in > > this message coming out many times. > > Note that vm_swa_full is defined the following way > > #define vm_swap_full() (nr_swap_pages*2 < total_swap_pages) > > This means that vm_swap_full is true when more than 50% of swap are in > use. The printed flag will therefore only be cleared if swap use falls to > less than half. (which was highly relevant changelog material) OK. But it that optimal? -- 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/ . Don't email: email@kvack.org