From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by wa-out-1112.google.com with SMTP id m28so1426414wag.8 for ; Mon, 18 Aug 2008 06:57:00 -0700 (PDT) Message-ID: <84144f020808180657v2bdd5f76l4b0f1897c73ec0c0@mail.gmail.com> Date: Mon, 18 Aug 2008 16:57:00 +0300 From: "Pekka Enberg" Subject: Re: [patch] mm: page allocator minor speedup In-Reply-To: <20080818122957.GE9062@wotan.suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080818122428.GA9062@wotan.suse.de> <20080818122957.GE9062@wotan.suse.de> Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Andrew Morton , Linux Memory Management List , Hugh Dickins , Christoph Lameter List-ID: Hi Nick, On Mon, Aug 18, 2008 at 3:29 PM, Nick Piggin wrote: > Now that we don't put a ZERO_PAGE in the pagetables any more, and the > "remove PageReserved from core mm" patch has had a long time to mature, > let's remove the page reserved logic from the allocator. > > This saves several branches and about 100 bytes in some important paths. Cool. Any numbers for this? Pekka -- 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