From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8307963A8; Tue, 29 Aug 2023 07:46:36 +0000 (UTC) Received: from out-253.mta1.migadu.com (out-253.mta1.migadu.com [IPv6:2001:41d0:203:375::fd]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4B3E1A6; Tue, 29 Aug 2023 00:46:34 -0700 (PDT) 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 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net 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. 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 us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 10DB0C83F2B for ; Tue, 29 Aug 2023 08:41:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1693298477; h=from:from:sender: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:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=QyeH2d76vAVPJQv9VkldNRsxYN4ACGWZ2jQGVXS8n7C5k3EiezHOMGM2b3+iS/KcMVYG8T gAV2fgA6klbpZQYjcY1p9eVmtkCa3lyxnTu5cXpxb7knhFtzjTJPMAq+v2+LDjSLZwrZCX euViOoYS6RTIr9tc/b+LnR8P/5rZk7Y= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-654-SJ2_28FOMz2sIGiL2BKAQQ-1; Tue, 29 Aug 2023 04:41:14 -0400 X-MC-Unique: SJ2_28FOMz2sIGiL2BKAQQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5AC80823D63; Tue, 29 Aug 2023 08:41:11 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com [10.30.29.100]) by smtp.corp.redhat.com (Postfix) with ESMTP id 455D7415F36; Tue, 29 Aug 2023 08:41:11 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (localhost [IPv6:::1]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id F312F1946A61; Tue, 29 Aug 2023 08:41:10 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id AE1BD19465B3 for ; Tue, 29 Aug 2023 07:46:36 +0000 (UTC) Received: by smtp.corp.redhat.com (Postfix) id 7504D492C14; Tue, 29 Aug 2023 07:46:36 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast09.extmail.prod.ext.rdu2.redhat.com [10.11.55.25]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6DDD5492C13 for ; Tue, 29 Aug 2023 07:46:36 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5187B29AA3BD for ; Tue, 29 Aug 2023 07:46:36 +0000 (UTC) Received: from out-244.mta1.migadu.com (out-244.mta1.migadu.com [95.215.58.244]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-41-zecDjej6NTuQ5YVTLu6CnA-1; Tue, 29 Aug 2023 03:46:34 -0400 X-MC-Unique: zecDjej6NTuQ5YVTLu6CnA-1 Message-ID: Date: Tue, 29 Aug 2023 15:46:13 +0800 MIME-Version: 1.0 To: Matthew Wilcox 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: X-Migadu-Flow: FLOW_OUT X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 X-Mailman-Approved-At: Tue, 29 Aug 2023 08:41:07 +0000 Subject: Re: [Cluster-devel] [PATCH 07/11] vfs: add nowait parameter for file_accessed() X-BeenThere: cluster-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: "\[Cluster devel\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Wanpeng Li , "Darrick J . Wong" , Dominique Martinet , Dave Chinner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Stefan Roesch , Clay Harris , linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-cachefs@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-block@vger.kernel.org, Alexander Viro , io-uring@vger.kernel.org, Jens Axboe , Christian Brauner , netdev@vger.kernel.org, samba-technical@lists.samba.org, linux-unionfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mtd@lists.infradead.org, bpf@vger.kernel.org, Pavel Begunkov , linux-btrfs@vger.kernel.org Errors-To: cluster-devel-bounces@redhat.com Sender: "Cluster-devel" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: linux.dev Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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. 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A0C3DC83F12 for ; Tue, 29 Aug 2023 07:46:44 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1qatQw-0005Tj-8M; Tue, 29 Aug 2023 07:46:43 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1qatQu-0005Tc-OT for linux-f2fs-devel@lists.sourceforge.net; Tue, 29 Aug 2023 07:46:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=lELz5V2UNXZkNPuo1PMrIwKlW8 r9XKoWafG17zyTHCYLa7HpqdNB0ZiTVlrYBe9mxFpGtrhHLyHkloDWIbU3J+zYpu00L0PjUGchO/g irhhkbb3fHOxMH4ZHDJafTY6OZlxi9Cp9LKi2j8ng8NtTJpfP9aiAnO+e3plqPbW/4f0=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=YxhIpuXzp1IXjPGUdAfE3W6NI4 ii4spTNXg+3/ast9wf3tDJ8ZZBGjd/aDtze4B+7tsYKLUqYsZJMERaT6fjXUr6zAo6ok+qfYE09gF DwpkxrorSXcITrgEo59q5dQ3bSqoBhjSwBJXI1fEs3KGpjjFH507/CaXnMVC+uu+xkH0=; Received: from out-248.mta1.migadu.com ([95.215.58.248]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1qatQu-0004Ew-E8 for linux-f2fs-devel@lists.sourceforge.net; Tue, 29 Aug 2023 07:46:41 +0000 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 Content-Language: en-US To: Matthew Wilcox 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: X-Migadu-Flow: FLOW_OUT X-Headers-End: 1qatQu-0004Ew-E8 Subject: Re: [f2fs-dev] [PATCH 07/11] vfs: add nowait parameter for file_accessed() X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Wanpeng Li , "Darrick J . Wong" , Dominique Martinet , Dave Chinner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Stefan Roesch , Clay Harris , linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-cachefs@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-block@vger.kernel.org, Alexander Viro , io-uring@vger.kernel.org, Jens Axboe , Christian Brauner , netdev@vger.kernel.org, samba-technical@lists.samba.org, linux-unionfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mtd@lists.infradead.org, bpf@vger.kernel.org, Pavel Begunkov , linux-btrfs@vger.kernel.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net 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. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hao Xu Subject: Re: [PATCH 07/11] vfs: add nowait parameter for file_accessed() Date: Tue, 29 Aug 2023 15:46:13 +0800 Message-ID: References: <20230827132835.1373581-1-hao.xu@linux.dev> <20230827132835.1373581-8-hao.xu@linux.dev> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=lELz5V2UNXZkNPuo1PMrIwKlW8 r9XKoWafG17zyTHCYLa7HpqdNB0ZiTVlrYBe9mxFpGtrhHLyHkloDWIbU3J+zYpu00L0PjUGchO/g irhhkbb3fHOxMH4ZHDJafTY6OZlxi9Cp9LKi2j8ng8NtTJpfP9aiAnO+e3plqPbW/4f0=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=WP3nN15JcnIGn7wEIePFcf6LVOuPCzTP32Hu73YPviw=; b=YxhIpuXzp1IXjPGUdAfE3W6NI4 ii4spTNXg+3/ast9wf3tDJ8ZZBGjd/aDtze4B+7tsYKLUqYsZJMERaT6fjXUr6zAo6ok+qfYE09gF DwpkxrorSXcITrgEo59q5dQ3bSqoBhjSwBJXI1fEs3KGpjjFH507/CaXnMVC+uu+xkH0=; 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= Content-Language: en-US In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Matthew Wilcox Cc: Wanpeng Li , "Darrick J . Wong" , Dominique Martinet , Dave Chinner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Stefan Roesch , Clay Harris , linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-cachefs@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-block@vger.kernel.org, Alexander Viro , io-uring@vger.kernel.org, Jens Axboe , Christian Brauner , netdev@vger.kernel.org, samba-technical@lists.samba.org, linux-unionfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kerne 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. 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 00C5EC83F14 for ; Tue, 29 Aug 2023 07:46:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YWvJ0fCoJnxy9lDAoBrmlFc/zV+iMrt0eQnm77X+9hQ=; b=dTTwF0fgNG2jtk TuOKdevFIHcVcaVntXRUt6sxtabTYYemvqTZGd581PEj53gJPCztdOmc8J0QPCjjszOS+ffH3o40Z KapIxL6iwjL5eUZ699b8USf5bQ2htvReJ9YUC3hbvfyP/Mj0L2u0TTgL0MOLGpGu5Lg3drvB82DQw f/GrgKS+33fTT1ynybSDdvFNDBk6h28V3es58dm+GOrkHrpCNYaBFz1U0Y9OALHRw7BpMfKZ6h53D EKRVhYcYp+1YS2/Zk4KTFr4i/OB4n39zhYJGtheiT0F5Dr/cWgRwyQ3HHYtkCkOdNIXbbDqkBQali 7CXHnK9fIAzAxwxl5mxQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qatQt-00AyGx-0Y; Tue, 29 Aug 2023 07:46:39 +0000 Received: from out-252.mta1.migadu.com ([2001:41d0:203:375::fc]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qatQq-00AyFn-0t for linux-mtd@lists.infradead.org; Tue, 29 Aug 2023 07:46:37 +0000 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: X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230829_004636_457836_05F7359F X-CRM114-Status: UNSURE ( 9.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org 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. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/