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 60DD4C001DB for ; Mon, 7 Aug 2023 19:40:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1691437241; 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=MgGrtlt5/f1+g7kF4pqnYOVA36sy9jl79OnrmuDJLJo=; b=DqgI+i7uGRgYg3D+mC8EEygWBJByxKWEfNyQJa4NMpFgUnUBWuVFZJlYeE+ejFAcXuE7j/ v7i8j45SoR/2cKYOFB3YtgJJqBM5rrSOo7+6XXhEopVU38UEV1bnywmd5tx6lwBtIwEaxN zZELbStq8v+dGG9qS526Nzlj4/iN28M= 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-204-a08GHfzUNdm5zAs80NAeLg-1; Mon, 07 Aug 2023 15:40:36 -0400 X-MC-Unique: a08GHfzUNdm5zAs80NAeLg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9A1B1101A528; Mon, 7 Aug 2023 19:40:35 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (unknown [10.30.29.100]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8F8521121314; Mon, 7 Aug 2023 19:40:35 +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 C76961946595; Mon, 7 Aug 2023 19:40:15 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id 3329A1946589 for ; Mon, 7 Aug 2023 19:39:57 +0000 (UTC) Received: by smtp.corp.redhat.com (Postfix) id DBC6F2166B28; Mon, 7 Aug 2023 19:39:56 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast06.extmail.prod.ext.rdu2.redhat.com [10.11.55.22]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D3E922166B25 for ; Mon, 7 Aug 2023 19:39:56 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [205.139.110.61]) (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 BA28E185A78F for ; Mon, 7 Aug 2023 19:39:56 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-482-wxeriQicNw-LYGSty7JYtQ-1; Mon, 07 Aug 2023 15:39:54 -0400 X-MC-Unique: wxeriQicNw-LYGSty7JYtQ-1 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 33863621D3; Mon, 7 Aug 2023 19:39:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1ED32C433CC; Mon, 7 Aug 2023 19:39:46 +0000 (UTC) From: Jeff Layton Date: Mon, 07 Aug 2023 15:38:41 -0400 MIME-Version: 1.0 Message-Id: <20230807-mgctime-v7-10-d1dec143a704@kernel.org> References: <20230807-mgctime-v7-0-d1dec143a704@kernel.org> In-Reply-To: <20230807-mgctime-v7-0-d1dec143a704@kernel.org> To: Alexander Viro , Christian Brauner , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Howells , Marc Dionne , Chris Mason , Josef Bacik , David Sterba , Xiubo Li , Ilya Dryomov , Jan Harkes , coda@cs.cmu.edu, Tyler Hicks , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Namjae Jeon , Sungjong Seo , Jan Kara , Theodore Ts'o , Andreas Dilger , Jaegeuk Kim , OGAWA Hirofumi , Miklos Szeredi , Bob Peterson , Andreas Gruenbacher , Greg Kroah-Hartman , Tejun Heo , Trond Myklebust , Anna Schumaker , Konstantin Komarov , Mark Fasheh , Joel Becker , Joseph Qi , Mike Marshall , Martin Brandenburg , Luis Chamberlain , Kees Cook , Iurii Zaikin , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Sergey Senozhatsky , Richard Weinberger , Hans de Goede , Hugh Dickins , Andrew Morton , Amir Goldstein , "Darrick J. Wong" , Benjamin Coddington X-Developer-Signature: v=1; a=openpgp-sha256; l=807; i=jlayton@kernel.org; h=from:subject:message-id; bh=OzDnAOkFvdqmLBbFuJs/CLbN23QVgBEedYg5nk4xP+Y=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBk0Ug+f9kdguq5TMBwkHk+cBAUTkwGtaz5BtdXB OuPQyDsL9iJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZNFIPgAKCRAADmhBGVaC FVU+EACRHWq/ok8Ci5soDBQDERlUIptXu4lEgbxup7TkwLUNnWrAdD6epDKSNEsW7DCyiz2IdS1 pGFVdR0NuWmsNAsV4apdFq8utofCuuQXFkShF4CGpObdFNxDJjMvsoXKFeW/E7fgIlv1w8tvl+M TZtcYLa5VLnkhenORjC9b3TlE8YCfiuxsrGTC8mYBJrtx5d9p30op1+bDdzyytFLNJLQlLWj14x j1oAiR8gG08J92of6XhtGMD0DtCossd3jSeVrC8OYlXA4vCmfZq6JtZhAw+CoNRKb+cOARV+9B+ SJr5nKCvKTzIuqmy7l7OMNEkKl8S2V9AJAwTild9ZW1Z2NAyOuSAeKhrWBFQMIPlWrhkCWsPn6K JuesJK2mMm/FyjTbn/I6u5siqSU+d61eK1yIU1rMkdJoxmydONqyifHcvL1HSrQrWIl2MdAApFE sPG4vDGwzddPezBep3zrdQxC6ZJab7utCrvAwfewI5O/GjTDxkX7FpjNTk1I212uzshngLd6djC Jrse0kdmFbO8tdzk0ywQY79OHNNTMRCNavw0Op2MIxwOIQ4yfXuQcnlaEFLrYX3pIwPe744NWnr cqzI6yqNIe8Y5zTQLAa6eRvH5OhjhgpJax5SPfaimHbaGB73Wa4hwyRmG2bufpcQYrEKNjYr5s0 glVbeH5wiH7pM1w== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 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 10.11.54.6 Subject: [Cluster-devel] [PATCH v7 10/13] tmpfs: add support for multigrain timestamps 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: Jan Kara , Jeff Layton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, ecryptfs@vger.kernel.org, ocfs2-devel@lists.linux.dev, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, v9fs@lists.linux.dev, 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, ntfs3@lists.linux.dev, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Errors-To: cluster-devel-bounces@redhat.com Sender: "Cluster-devel" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Enable multigrain timestamps, which should ensure that there is an apparent change to the timestamp whenever it has been written after being actively observed via getattr. tmpfs only requires the FS_MGTIME flag. Reviewed-by: Jan Kara Signed-off-by: Jeff Layton --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index 142ead70e8c1..98cc4be7a8a8 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -4220,7 +4220,7 @@ static struct file_system_type shmem_fs_type = { #endif .kill_sb = kill_litter_super, #ifdef CONFIG_SHMEM - .fs_flags = FS_USERNS_MOUNT | FS_ALLOW_IDMAP, + .fs_flags = FS_USERNS_MOUNT | FS_ALLOW_IDMAP | FS_MGTIME, #else .fs_flags = FS_USERNS_MOUNT, #endif -- 2.41.0