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 3FC4CC83F12 for ; Tue, 29 Aug 2023 07:46:37 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 814CF280023; Tue, 29 Aug 2023 03:46:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7C49F8E001E; Tue, 29 Aug 2023 03:46:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6D9E3280023; Tue, 29 Aug 2023 03:46:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 61A7A8E001E for ; Tue, 29 Aug 2023 03:46:36 -0400 (EDT) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 2C9538061F for ; Tue, 29 Aug 2023 07:46:36 +0000 (UTC) X-FDA: 81176359992.06.552B075 Received: from out-249.mta1.migadu.com (out-249.mta1.migadu.com [95.215.58.249]) by imf08.hostedemail.com (Postfix) with ESMTP id 5696F16000E for ; Tue, 29 Aug 2023 07:46:34 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=ngCnTfY2; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf08.hostedemail.com: domain of hao.xu@linux.dev designates 95.215.58.249 as permitted sender) smtp.mailfrom=hao.xu@linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1693295194; 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=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=oJH/LoRf94RO2aaMJT2mfc9x0VvYgA/vUkYv7dmOI9DiRI2RlSG8bOtT3ybqpmbjgHmKF5 lL/RpEZCNGk+oDu79L7t9Ed/h1zNQaO1JoVjX+UVNU2psoXBZY2RE7XFlcJoch9jRWO55L 3nLNbHOkJcxwpa5H27WzKIYb7/0sf/M= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=ngCnTfY2; dmarc=pass (policy=none) header.from=linux.dev; spf=pass (imf08.hostedemail.com: domain of hao.xu@linux.dev designates 95.215.58.249 as permitted sender) smtp.mailfrom=hao.xu@linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1693295194; a=rsa-sha256; cv=none; b=yUol5tbaqCmKopf2SbaTT+2wWaHi6Gq1C7WWCpc4Wh+LNlOT1UmRZUoGxSa4IeiNRKcYSZ GNO3jnKH5AQ4Sxe12eMJQnqjG40F/c41ekZgG+Z18vC9m+fZvcpJO7LZqVPRJwT6jg+ARl /DkSk4qnDh0E5tYxnYZsW60ORv+oBl0= Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1693295192; 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=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=ngCnTfY2JVdB7UbTvhBxaE99SXYf68v1UOzv1oD4Q4J5vfDrhRAI+RinhUow/HJ/SENsM3 ljkpELTTwPgx4fdS1Wsi0U6qZJzH3KEWBSpgNNnZhZo9Ah7qcNPQhnBWxHwyd9Ba5JlzW/ R7n89/DPeOOyD3xIKShExED+0gXsmv8= Date: Tue, 29 Aug 2023 15:46:13 +0800 MIME-Version: 1.0 Subject: Re: [PATCH 07/11] vfs: add nowait parameter for file_accessed() Content-Language: en-US To: Matthew Wilcox 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 References: <20230827132835.1373581-1-hao.xu@linux.dev> <20230827132835.1373581-8-hao.xu@linux.dev> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Hao Xu In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 5696F16000E X-Stat-Signature: gbucf1u8kg5ci396sn6h9uk59sk3apzz X-HE-Tag: 1693295194-763596 X-HE-Meta: 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 gSV9a4GF hMfdruPHacPFPpnAaCl1IB9FwTRh8vAy0oGrwtSKqyumAxQHpeOmtFgdFDT8CgChlvsSioi4Rvr5YDSeD99c+Z3LNIu0kY9McnjhyQpftIWZCZ909Is/CS5x5g3iwW1LOvIFdjODXagWUrrGjkwJ61NW1zp3F/kZoNYMlTVHn7X0mr2ksmBAdMKuyvJBH49X9kElcCvLo1hTWUK1rH2NoRjxxNUkODb1GV/k+Vdu9UP1NRVjFkrh8ABkO+ccaH+t5kpJW1hoO93yM5oTmsIodkSJmq4PtQt0+bSkc 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 8/28/23 05:32, Matthew Wilcox wrote: > On Sun, Aug 27, 2023 at 09:28:31PM +0800, Hao Xu wrote: >> From: Hao Xu >> >> Add a boolean parameter for file_accessed() to support nowait semantics. >> Currently it is true only with io_uring as its initial caller. > > So why do we need to do this as part of this series? Apparently it > hasn't caused any problems for filemap_read(). > We need this parameter to indicate if nowait semantics should be enforced in touch_atime(), There are locks and maybe IOs in it.