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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 63CE3C433E6 for ; Tue, 1 Sep 2020 18:46:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EE83320767 for ; Tue, 1 Sep 2020 18:46:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE83320767 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=deneb.enyo.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7ACA96B00CF; Tue, 1 Sep 2020 14:46:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 75D98900015; Tue, 1 Sep 2020 14:46:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 672866B00D2; Tue, 1 Sep 2020 14:46:28 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0053.hostedemail.com [216.40.44.53]) by kanga.kvack.org (Postfix) with ESMTP id 4E66E6B00CF for ; Tue, 1 Sep 2020 14:46:28 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 134B08248047 for ; Tue, 1 Sep 2020 18:46:28 +0000 (UTC) X-FDA: 77215373256.27.fact97_1103e752709a Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin27.hostedemail.com (Postfix) with ESMTP id D3DAB3D668 for ; Tue, 1 Sep 2020 18:46:27 +0000 (UTC) X-HE-Tag: fact97_1103e752709a X-Filterd-Recvd-Size: 2465 Received: from albireo.enyo.de (albireo.enyo.de [37.24.231.21]) by imf14.hostedemail.com (Postfix) with ESMTP for ; Tue, 1 Sep 2020 18:46:27 +0000 (UTC) Received: from [172.17.203.2] (helo=deneb.enyo.de) by albireo.enyo.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) id 1kDBIB-00022C-08; Tue, 01 Sep 2020 18:46:03 +0000 Received: from fw by deneb.enyo.de with local (Exim 4.92) (envelope-from ) id 1kDBIA-0007dD-RY; Tue, 01 Sep 2020 20:46:02 +0200 From: Florian Weimer To: Minchan Kim Cc: Andrew Morton , LKML , Christian Brauner , linux-mm , linux-api@vger.kernel.org, oleksandr@redhat.com, Suren Baghdasaryan , Tim Murray , Sandeep Patil , Sonny Rao , Brian Geffon , Michal Hocko , Johannes Weiner , Shakeel Butt , John Dias , Joel Fernandes , Jann Horn , alexander.h.duyck@linux.intel.com, sj38.park@gmail.com, David Rientjes , Arjun Roy , Linus Torvalds , Vlastimil Babka , Christian Brauner , Daniel Colascione , Jens Axboe , Kirill Tkhai , SeongJae Park , linux-man@vger.kernel.org Subject: Re: [PATCH v9 3/3] mm/madvise: introduce process_madvise() syscall: an external memory hinting API References: <20200901000633.1920247-1-minchan@kernel.org> <20200901000633.1920247-4-minchan@kernel.org> Date: Tue, 01 Sep 2020 20:46:02 +0200 In-Reply-To: <20200901000633.1920247-4-minchan@kernel.org> (Minchan Kim's message of "Mon, 31 Aug 2020 17:06:33 -0700") Message-ID: <87blippc7p.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: D3DAB3D668 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: * Minchan Kim: > ssize_t process_madvise(int pidfd, const struct iovec *iovec, > unsigned long vlen, int advice, unsigned int flags); size_t for vlen provides a clearer hint regarding the type of special treatment needed for ILP32 here (zero extension, not changing the type to long long).