From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 7B8E5DDF10 for ; Wed, 19 Dec 2007 03:42:49 +1100 (EST) Message-Id: <67EFE423-4DA4-486B-A51A-CB73FD5297D2@kernel.crashing.org> From: Kumar Gala To: Dale Farnsworth In-Reply-To: <20071218162032.GB28931@xyzzy.farnsworth.org> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Mime-Version: 1.0 (Apple Message framework v915) Subject: Re: [PATCH 07/10] powerpc: Implement kmap_atomic_pfn on powerpc Date: Tue, 18 Dec 2007 10:42:36 -0600 References: <20071122154638.GA26514@xyzzy.farnsworth.org> <1197699461.6696.45.camel@pasglop> <20071218162032.GB28931@xyzzy.farnsworth.org> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Dec 18, 2007, at 10:20 AM, Dale Farnsworth wrote: > On Sat, Dec 15, 2007 at 05:17:41PM +1100, Benjamin Herrenschmidt > wrote: >> >> On Thu, 2007-11-22 at 08:46 -0700, Dale Farnsworth wrote: >>> This is needed for the ppc32 /dev/oldmem driver of crash dump. >> >> Kumar's working (well, last I heard he was) on a fixmap mechanism >> so we can do that sort of thing without CONFIG_HIGHMEM, you may >> want to sync with him here, that would allow to shrink the crash >> kernel by not having highmem selected. >> >> Cheers, >> Ben. > > Kumar, are you close to posting something that would make the > patch below unnecessary (or change it significantly)? If so, > I'll hold off. My plan is to get the fixmap stuff posted this week. - k