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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBFB5C38A2D for ; Tue, 25 Oct 2022 07:10:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4BCA080009; Tue, 25 Oct 2022 03:10:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 46B5480007; Tue, 25 Oct 2022 03:10:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 30C1680009; Tue, 25 Oct 2022 03:10:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 1932F80007 for ; Tue, 25 Oct 2022 03:10:27 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id DC53CA0862 for ; Tue, 25 Oct 2022 07:10:26 +0000 (UTC) X-FDA: 80058598452.12.A2908E9 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf28.hostedemail.com (Postfix) with ESMTP id 88CD1C001C for ; Tue, 25 Oct 2022 07:10:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666681825; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6uE3DhoyppSorLvc/Envz8CzaNz1EF7/KSd+9Rw6KO4=; b=F2olL4dCR8tov21M9ponpWw3UsLZE7zSKCYDiX+ZxiQqbUf5eEs2PSxlDdxK9B8JjSkprI +2zYiG7UeNfnjtayiCvLjIpDIWVFozDOPpuML9LMikr2zbz4TONb8EUE3aAdPVV/XoXIgo Ax7Jz73EsemlCObqgcvwUC7yCFL12BU= Received: from mail-wm1-f69.google.com (mail-wm1-f69.google.com [209.85.128.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-198-13zdl2i_O_em99nPQGEXhw-1; Tue, 25 Oct 2022 03:10:21 -0400 X-MC-Unique: 13zdl2i_O_em99nPQGEXhw-1 Received: by mail-wm1-f69.google.com with SMTP id t20-20020a7bc3d4000000b003c6bfea856aso2150920wmj.1 for ; Tue, 25 Oct 2022 00:10:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:organization:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=6uE3DhoyppSorLvc/Envz8CzaNz1EF7/KSd+9Rw6KO4=; b=7KdtvMcxqpPtBMcZXNiOCQo5MLFd+Od6/KFF5Sr5OBBKgKhVFNfeWwF4CjZG6F7lvQ THDR9KDRPA7pUVQ5tZB/Sb+pPqEJjdOSaLAdjF2rdBQ1iqo6iwKRPezuAU8gFu2pLeL6 QqqhytPeSDeFm9NP7aurpb/hbaX0khZ0F2CNaMecZpNFe/waUG9WsgFuvTcmrWdW+Fmw QNgSOIOTd4yC0DWDHYtfK5QIAcZh1rYtYse3VQG/16rHFts7hHqwArVy2AcPfNuTQejd 0noqoP0r4xCzGQhU68GUmjBjcqTh2z1FIk699dg/gQkujrnI1K3v4D0z56or1X8Mcp+S RJ1g== X-Gm-Message-State: ACrzQf3GA0qbzHppOhbh21JHIl1Jqa1iVRMJmGdXcDMU5yLc1v3/3Xcn 2enGTF2u/vAY/RV+EF2ZlQ39ot//WMczjcDn8woXTO7VCT/3WFPD2arRVfg1SEO7oayCXe21F3k wpCyN0ih3P3M= X-Received: by 2002:a05:600c:a47:b0:3a6:5848:4bde with SMTP id c7-20020a05600c0a4700b003a658484bdemr44919414wmq.189.1666681820551; Tue, 25 Oct 2022 00:10:20 -0700 (PDT) X-Google-Smtp-Source: AMsMyM7YT/j1Vmojh5DBuD0Dlc3qbWbBxDj/qp//DibR7eJ6WajhCcajb+s3exb/pzzTjfOALnrs0Q== X-Received: by 2002:a05:600c:a47:b0:3a6:5848:4bde with SMTP id c7-20020a05600c0a4700b003a658484bdemr44919379wmq.189.1666681820211; Tue, 25 Oct 2022 00:10:20 -0700 (PDT) Received: from ?IPV6:2003:cb:c70b:4e00:3efc:1c60:bc60:f557? (p200300cbc70b4e003efc1c60bc60f557.dip0.t-ipconnect.de. [2003:cb:c70b:4e00:3efc:1c60:bc60:f557]) by smtp.gmail.com with ESMTPSA id p5-20020a1c5445000000b003c71358a42dsm12027984wmi.18.2022.10.25.00.10.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 25 Oct 2022 00:10:19 -0700 (PDT) Message-ID: <445fe1ae-9e22-0d1d-4d09-272231d2f84a@redhat.com> Date: Tue, 25 Oct 2022 09:10:18 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.1 Subject: Re: [PATCH v1 5/7] selftests/vm: anon_cow: add liburing test cases To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org, Andrew Morton , Shuah Khan , Jason Gunthorpe , John Hubbard , Nadav Amit , Peter Xu , Andrea Arcangeli , Vlastimil Babka , Mike Rapoport , Christoph von Recklinghausen , Don Dutile References: <20220927110120.106906-1-david@redhat.com> <20220927110120.106906-6-david@redhat.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20220927110120.106906-6-david@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666681826; a=rsa-sha256; cv=none; b=fk8+leLT2yXqQzn9osBj6/TRLGUliCnYrG1t05Tz5M9G/uiFvT0jZZvMgppqqswEf+aoXI L8+em5FluOMsp/sAjncJWUSWL/uljzC8bzJMN9Drt2CY6L5N0TVWvGTtf2bOI4qaFO43Al +LuXLUNcv7AmBr6U4ZQ8Mmr4jEuH2w0= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=F2olL4dC; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf28.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666681826; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=6uE3DhoyppSorLvc/Envz8CzaNz1EF7/KSd+9Rw6KO4=; b=k5SLEw8oL5K0UvPLqvVbANXgRaDkV06zcc8PJ8wYnNIVI3SN33mfNIbfG5bXDtx49kutuQ 4jEeYF8pPNzsKYDOb8vNUhoythGyToEOVaPGsnm8hRIdjqMXXT9OkKDQdZkBIqyb748ykc aSPPaskBicQy2UPoatoUJ1EcV4w4IzE= X-Rspamd-Queue-Id: 88CD1C001C Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=F2olL4dC; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf28.hostedemail.com: domain of david@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=david@redhat.com X-Rspamd-Server: rspam12 X-Rspam-User: X-Stat-Signature: infma5qqe5oip8nff38t9jsr3k7adgz1 X-HE-Tag: 1666681826-6026 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: On 27.09.22 13:01, David Hildenbrand wrote: > io_uring provides a simple mechanism to test long-term, R/W GUP pins > -- via fixed buffers -- and can be used to verify that GUP pins stay > in sync with the pages in the page table even if a page would > temporarily get mapped R/O or concurrent fork() could accidentially > end up sharing pinned pages with the child. > > Note that this essentially re-introduces local_config support that was > removed recently in commit 6f83d6c74ea5 ("Kselftests: remove support of > libhugetlbfs from kselftests"). > > Signed-off-by: David Hildenbrand > --- The following fixup on top: diff --git a/tools/testing/selftests/vm/anon_cow.c b/tools/testing/selftests/vm/anon_cow.c index c1450a5d6f53..01417a604eda 100644 --- a/tools/testing/selftests/vm/anon_cow.c +++ b/tools/testing/selftests/vm/anon_cow.c @@ -346,7 +346,7 @@ static void do_test_iouring(char *mem, size_t size, bool use_fork) struct io_uring_cqe *cqe; struct io_uring_sqe *sqe; struct io_uring ring; - size_t cur, total; + ssize_t cur, total; struct iovec iov; char *buf, *tmp; int ret, fd; -- Thanks, David / dhildenb