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 AC729C83F11 for ; Sun, 27 Aug 2023 20:52:28 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3A77E28000E; Sun, 27 Aug 2023 16:52:28 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3583F8E000E; Sun, 27 Aug 2023 16:52:28 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 22A4D8E0001; Sun, 27 Aug 2023 16:52:28 -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 102F18E0001 for ; Sun, 27 Aug 2023 16:52:28 -0400 (EDT) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id DD7D3160221 for ; Sun, 27 Aug 2023 20:52:27 +0000 (UTC) X-FDA: 81171082734.10.F5665F2 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf10.hostedemail.com (Postfix) with ESMTP id 46122C000B for ; Sun, 27 Aug 2023 20:52:26 +0000 (UTC) Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b="f4Amt/s2"; dmarc=none; spf=none (imf10.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1693169546; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=64WGA8VV9Ar6eu59jwKakipB5IQeiUdKnhF4bZRyjJg=; b=t2Yt4R/SAm3l0JENfr9HQWQyWNG6J8oqR1dkIbwvI65QH/emVUNUHwW5OuIotSpBRK+F8P JZtWvQ0UvQ9Ercr3AX1T5V3W4jm/H8e3yK44kYA/y5YIZRwacIzQ6kHqlHPTeuFcy4oB+S 96A/x9e6meTVpT+eUvtWQNILzElTtts= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b="f4Amt/s2"; dmarc=none; spf=none (imf10.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1693169546; a=rsa-sha256; cv=none; b=sLO1e0+O/6SQ+G/oIP96h+v9FkM2zytH8WcMKdr3qL938jES3bI+O5qyWI3cVDyPsVgKkx p6pu4489ts3ZFX5ns9KwZt6M8Rn0hf8rYpxl0Jn3RfHmDwxTGhQtAZ+78VVw06eu7sl1HT oqGGWel5+LKGmU5hCZjJowrfS17R0Lk= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=64WGA8VV9Ar6eu59jwKakipB5IQeiUdKnhF4bZRyjJg=; b=f4Amt/s2VPJBfpbA4kwhdXTdVg /pn5N3WZwWFuLeNUpjeDraYY4nQbaO2UYvFIaQahuWJpv6yWj9SJhm3438dxwJSqQjroyoc9F0SYv XAWPI0/B2+Jwn7WLlLOC7qTdz3pp+yI4mEjVaLz0qln0W2Hlp6Bqseo3n3BK6S7q8PWF2QR7jDDR5 5QOB+otXNut9VVTlFGgE9OB8fNY4Zqee0Fvn6lAYSC0XLvrtBqaDQzjA8XPvUV/U40DN9P1BUUcT+ KJAEsVOCJlXQA4wp82KhD9XmJfIxAUdOp4MXoPkTY5GoW5ML77D0bFxP371EeaBKUbiVosNZkp33g ozZ78lYw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qaMjj-00DkxQ-7a; Sun, 27 Aug 2023 20:51:55 +0000 Date: Sun, 27 Aug 2023 21:51:55 +0100 From: Matthew Wilcox To: Hao Xu Cc: io-uring@vger.kernel.org, Jens Axboe , Dominique Martinet , Pavel Begunkov , Christian Brauner , Alexander Viro , Stefan Roesch , Clay Harris , Dave Chinner , "Darrick J . Wong" , linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-cachefs@redhat.com, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-mm@kvack.org, linux-nilfs@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-mtd@lists.infradead.org, Wanpeng Li Subject: Re: [PATCH 09/11] vfs: error out -EAGAIN if atime needs to be updated Message-ID: References: <20230827132835.1373581-1-hao.xu@linux.dev> <20230827132835.1373581-10-hao.xu@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230827132835.1373581-10-hao.xu@linux.dev> X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 46122C000B X-Stat-Signature: 55qxnrttsbwied8cnioq1gsc7bx45usg X-Rspam-User: X-HE-Tag: 1693169546-378639 X-HE-Meta: U2FsdGVkX1+LJfCaKtzKyOyuTdi+rotUMm5zxuX2T9J9jO/pCPuKvs+K4yKr6OyjqpJbtKZ0ImFhewKkpk2N7DHklypPppEJheNnzaMk4U7YXjHJLBvaSLBAwTRMgQcWvq0jeqFyKSYjxeeCl2RpOc3F0HXgf54mC9mjNtEY+Io5sQBg7zPqSMXqxwjTrdhPXArNUm6MU2qqbLalRqoKm6PlkEcg+EIlHz4SV1su1F94aO9LIh0FhMAoN520cHMeinrPDRoj3u5o0TM896Zg69+Kv8s9qe9zI06417YqjSJsr6YpLNwVUKWQ86U9oiTAg13gRfemGNUKxixAjqeKfmG0y9GefD/QOBQWQ8Qw1zXJE9lROY1qI+tW5TXsrA/5jAFC/h7uAxic2bwRfMVueoCB02JRujAB+rIPdI/GxbEJS4UM4AdNgG+mwZBkw+obGD7VDT5YzuKmKwa4H1KVMBHCWC0tSgzYK9g0No/EOMZvFPgXQJMh7znhBPByzGR/aWjwcqSNWK1GjuKxFoDDhosYIi8cvVEfP4jOaPwoQJmZWof/waJKNHWA1VRSz3eiby38OVKYMZDrtC9Lgvcdzzp9oHakbWhr/zh/yb6k7xEMnYbH5L6ox4ufW6V4JE0IyQZ3IISFSvCtIpJU6hEKvnDsA4gv2M7uEfDHaV9fkD2bUq2HO8E5K6/2Otik5Y2WKeLLOlxgQdRP5Fl+V64ueNr6R1KXJgxSRfTyukfkhhkod5YMiIW/tAXWq0EOYbfpuvVTiI9uion/tC+nXoDDppawASJkMQNEmKEKh3JqLECGJQkl1dNmbNpng7V5HzdjpHEdb5f1fn1tUI1uOjlpqg2ye/gFXh6nErH20lPVPJhRyreWI7UKa3TSyuq3c58LaQwbDojAT+nLcHSoB6A1cfeLCtKt4zb6Ordp4+97aJwKr5rL5DL0xl32OOZqzIrYijKXCmBL7Mosh8cqZfX taS05SKv d/REn73h02JDlmz0hHitRX4BSbvkRrrvVQA89RGTzIJEOBvTp8U46NkK2/AVpMrpI5d5+CI9ibKNfJJwMbq4n2aP8ucls6TiQhSLT4tvBgf36MJMH+ZyXUxlmOfPysJ03Vig5cuKMnrwGwb3vfO+cThYH5aMnmGelgynJati7Q5imYLR3wmT0MvxDdq9G04Vs2URKFJA2BkcaCiHc9W6JZO1oiDM4r2K0jQAHfqPVnXKyVPS8z5aftPeatBZ8PeBm60t5IYX3U64viYbM2nL4tpvQB1eO/xMsqSGIHgaQGoBT4dI= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000036, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Sun, Aug 27, 2023 at 09:28:33PM +0800, Hao Xu wrote: > From: Hao Xu > > To enforce nowait semantics, error out -EAGAIN if atime needs to be > updated. Squash this into patch 6. Otherwise patch 6 makes no sense.