From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5DE9BC433DB for ; Wed, 17 Mar 2021 22:58:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id DA75864E21 for ; Wed, 17 Mar 2021 22:58:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DA75864E21 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 522426B0070; Wed, 17 Mar 2021 18:58:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4A90E6B0071; Wed, 17 Mar 2021 18:58:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 34B456B0072; Wed, 17 Mar 2021 18:58:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0202.hostedemail.com [216.40.44.202]) by kanga.kvack.org (Postfix) with ESMTP id 179616B0070 for ; Wed, 17 Mar 2021 18:58:46 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id C96C8878D for ; Wed, 17 Mar 2021 22:58:45 +0000 (UTC) X-FDA: 77930882610.07.0561127 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf02.hostedemail.com (Postfix) with ESMTP id 5C9D640001DE for ; Wed, 17 Mar 2021 22:58:45 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id EAE4D64D9F; Wed, 17 Mar 2021 22:58:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1616021924; bh=mPPiBe/bfcCRC6s/WTecgYs69LyDrOV06BZGWgBGh88=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=UQSoeij97X1M0/w9/5ziAaBjrHs7Y+lZ8IrLV+fkfU6KJaRXfc1FGuav4T0Y3J1fQ yLo8aYxQ1lsBrOcKJ1OBBCFyCYguMi3sy4Ipqa3HZMDImJS81fMq7cps2fgDiug5GZ zPzfIg6paHc2D+BMdx135Babgj1f/oULiTX9Y6VA= Date: Wed, 17 Mar 2021 15:58:43 -0700 From: Andrew Morton To: Nicholas Piggin Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Jonathan Cameron , Christoph Hellwig , Christophe Leroy , Rick Edgecombe , Ding Tianhong Subject: Re: [PATCH v13 00/14] huge vmalloc mappings Message-Id: <20210317155843.c15e71f966f1e4da508dea04@linux-foundation.org> In-Reply-To: <20210317062402.533919-1-npiggin@gmail.com> References: <20210317062402.533919-1-npiggin@gmail.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: ojq1j4efuxxg8er8bkfigktxzsqpxfr7 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 5C9D640001DE Received-SPF: none (linux-foundation.org>: No applicable sender policy available) receiver=imf02; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1616021925-237355 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, 17 Mar 2021 16:23:48 +1000 Nicholas Piggin wrote: > > *** BLURB HERE *** > That's really not what it means ;) Could we please get a nice description for the [0/n]? What's it all about, what's the benefit, what are potential downsides. And performance testing results! Because if it ain't faster, there's no point in merging it?