From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 4 Apr 2006 20:04:09 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC 2/6] Swapless V1: Add SWP_TYPE_MIGRATION Message-Id: <20060404200409.a78cdb2a.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20060404065750.24532.67454.sendpatchset@schroedinger.engr.sgi.com> References: <20060404065739.24532.95451.sendpatchset@schroedinger.engr.sgi.com> <20060404065750.24532.67454.sendpatchset@schroedinger.engr.sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: linux-mm@kvack.org, lee.schermerhorn@hp.com, lhms-devel@lists.sourceforge.net, taka@valinux.co.jp, marcelo.tosatti@cyclades.com List-ID: On Mon, 3 Apr 2006 23:57:50 -0700 (PDT) Christoph Lameter wrote: > > #define MAX_SWAPFILES_SHIFT 5 > -#define MAX_SWAPFILES (1 << MAX_SWAPFILES_SHIFT) > +#define MAX_SWAPFILES ((1 << MAX_SWAPFILES_SHIFT)-1) > + > +/* Use last entry for page migration swap entries */ > +#define SWP_TYPE_MIGRATION MAX_SWAPFILES How about this ? #ifdef CONFIG_MIGRATION #define MAX_SWAPFILES ((1 << MAX_SWAPFILES_SHIFT) - 1) #else #define MAX_SWAPFILES (1 << MAX_SWAPFILES_SHIFT) #endif #define SWP_TYPE_MIGRATION (MAX_SWAPFILES + 1) .....but I don't think there is a user who uses 32 swaps.... --Kame -- 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