From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e31.co.us.ibm.com (8.12.10/8.12.9) with ESMTP id j4JNqXua444192 for ; Thu, 19 May 2005 19:52:33 -0400 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay04.boulder.ibm.com (8.12.10/NCO/VER6.6) with ESMTP id j4JNqXcs253662 for ; Thu, 19 May 2005 17:52:33 -0600 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.12.11/8.13.3) with ESMTP id j4JNqWmU032694 for ; Thu, 19 May 2005 17:52:32 -0600 Subject: Re: page flags ? From: Badari Pulavarty In-Reply-To: <20050519155306.2b895e64.akpm@osdl.org> References: <1116450834.26913.1293.camel@dyn318077bld.beaverton.ibm.com> <20050518145644.717afc21.akpm@osdl.org> <1116456143.26913.1303.camel@dyn318077bld.beaverton.ibm.com> <20050518162302.13a13356.akpm@osdl.org> <428C6FB9.4060602@shadowen.org> <20050519041116.1e3a6d29.akpm@osdl.org> <1116527349.26913.1353.camel@dyn318077bld.beaverton.ibm.com> <20050519155306.2b895e64.akpm@osdl.org> Content-Type: text/plain Message-Id: <1116545665.26913.1378.camel@dyn318077bld.beaverton.ibm.com> Mime-Version: 1.0 Date: 19 May 2005 16:34:27 -0700 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: apw@shadowen.org, linux-mm@kvack.org, linux-fsdevel List-ID: On Thu, 2005-05-19 at 15:53, Andrew Morton wrote: > Badari Pulavarty wrote: > > > > I am worried about the overhead this might add to kmap/kunmap(). > > > > kmap() already sucks. > I thought so, but wanted to be explicit. > > -#define PG_highmem 8 > > +#define PG_highmem_removed 8 /* Trying to kill this */ > > I thnik I'll just nuke this. Yep. I was just trying to be nice - if some one gets a compile failure, i wanted them to know that "we are trying to remove it, justify your case". BTW, I tried to kill PG_slab. Other than catching error conditions with memory freeing, there are few users of it - show_mem(): to show how much memory stuck in slab easily. - kobjsize() Thanks, Badari -- 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: aart@kvack.org