From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: [PATCH] generic debug pagealloc Date: Fri, 06 Mar 2009 20:14:20 +1100 Message-ID: <1236330860.7260.128.camel@pasglop> References: <20090303160103.GB5812@localhost.localdomain> <20090303133610.cb771fef.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090303133610.cb771fef.akpm@linux-foundation.org> Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Akinobu Mita , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org List-Id: linux-arch.vger.kernel.org On Tue, 2009-03-03 at 13:36 -0800, Andrew Morton wrote: > Alternatively, we could just not do the kmap_atomic() at all. i386 > won't be using this code and IIRC the only other highmem architecture > is powerpc32, and ppc32 appears to also have its own DEBUG_PAGEALLOC > implementation. So you could remove the kmap_atomic() stuff and put > Actually, ppc32 DEBUG_PAGEALLOC is busted in several ways and probably unfixable (though this is still being debated). Cheers, Ben. -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org ([63.228.1.57]:38361 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750714AbZCFJOf (ORCPT ); Fri, 6 Mar 2009 04:14:35 -0500 Subject: Re: [PATCH] generic debug pagealloc From: Benjamin Herrenschmidt In-Reply-To: <20090303133610.cb771fef.akpm@linux-foundation.org> References: <20090303160103.GB5812@localhost.localdomain> <20090303133610.cb771fef.akpm@linux-foundation.org> Content-Type: text/plain Date: Fri, 06 Mar 2009 20:14:20 +1100 Message-ID: <1236330860.7260.128.camel@pasglop> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org List-ID: To: Andrew Morton Cc: Akinobu Mita , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org Message-ID: <20090306091420.a3Rd0SFH8ZXuUUybMKFKVUTBShgXTUqWa6OAjI_Ok-g@z> On Tue, 2009-03-03 at 13:36 -0800, Andrew Morton wrote: > Alternatively, we could just not do the kmap_atomic() at all. i386 > won't be using this code and IIRC the only other highmem architecture > is powerpc32, and ppc32 appears to also have its own DEBUG_PAGEALLOC > implementation. So you could remove the kmap_atomic() stuff and put > Actually, ppc32 DEBUG_PAGEALLOC is busted in several ways and probably unfixable (though this is still being debated). Cheers, Ben.