Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932471AbbHYQjw (ORCPT ); Tue, 25 Aug 2015 12:39:52 -0400 Received: from mail-ig0-f180.google.com ([209.85.213.180]:36269 "EHLO mail-ig0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755291AbbHYQjv (ORCPT ); Tue, 25 Aug 2015 12:39:51 -0400 MIME-Version: 1.0 In-Reply-To: <87h9npwtx3.fsf@rasmusvillemoes.dk> References: <20150823060443.GA9882@gmail.com> <20150823064603.14050.qmail@ns.horizon.com> <20150823081750.GA28349@gmail.com> <87h9npwtx3.fsf@rasmusvillemoes.dk> Date: Tue, 25 Aug 2015 09:39:50 -0700 X-Google-Sender-Auth: TOzYzUnB8dyuc7ZUgr4d9BH6a40 Message-ID: Subject: Re: [PATCH 3/3 v3] mm/vmalloc: Cache the vmalloc memory info From: Linus Torvalds To: Rasmus Villemoes Cc: Ingo Molnar , George Spelvin , Dave Hansen , Linux Kernel Mailing List , linux-mm , Peter Zijlstra , Rik van Riel , David Rientjes Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 989 Lines: 22 On Sun, Aug 23, 2015 at 2:56 PM, Rasmus Villemoes wrote: > > [Maybe one could just remove the fields and see if anybody actually > notices/cares any longer. Or, if they are only used by kernel > developers, put them in their own file.] I'm actually inclined to try exactly that for 4.3, and then take Ingo's patch as a fallback in case somebody actually notices. I'm not convinced anybody actually uses those values, and they are getting *less* relevant rather than more (on 64-bit, those values really don't matter, since the vmalloc space isn't really a limitation), so let's try removing them and seeing what happens. And then we know what we can do if somebody does actually notice. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/