From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4470547D.2030505@yahoo.com.au> Date: Sun, 21 May 2006 21:52:29 +1000 From: Nick Piggin MIME-Version: 1.0 Subject: Re: [patch 2/2] mm: handle unaligned zones References: <4470232B.7040802@yahoo.com.au> <44702358.1090801@yahoo.com.au> <20060521021905.0f73e01a.akpm@osdl.org> <4470417F.2000605@yahoo.com.au> <20060521035906.3a9997b0.akpm@osdl.org> <44705291.9070105@yahoo.com.au> In-Reply-To: <44705291.9070105@yahoo.com.au> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org Cc: Andrew Morton , apw@shadowen.org, mel@csn.ul.ie, stable@kernel.org List-ID: Nick Piggin wrote: > Andrew Morton wrote: > >> How about just throwing the pages away? It sounds like a pretty rare >> problem. > > > Well that's what many architectures will end up doing, yes. But on > small or embedded platforms, 4MB - 1 is a whole lot of memory to be > throwing away. > > Also, I'm not sure it is something we can be doing in generic code, > because some architectures apparently have very strange zone setups > (eg. zones from several pages interleaved within a single zone's > ->spanned_pages). So it doesn't sound like a simple matter of trying > to override the zones' intervals. Oh I see, yeah I guess you could throw away the pages forming the present fraction of the MAX_ORDER buddy... -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com ----- End forwarded message ----- -- "Time is of no importance, Mr. President, only life is important." Don't Email: . -- 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