Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp745151pxb; Thu, 21 Jan 2021 20:18:16 -0800 (PST) X-Google-Smtp-Source: ABdhPJwBXvv/0Ar7QBdQTLcy9lyZFpzoYuOaPMH8F693ebA9kS/GGFoxrlabcPLKyKUZDeHLtlGn X-Received: by 2002:a17:906:4a13:: with SMTP id w19mr1701013eju.33.1611289096380; Thu, 21 Jan 2021 20:18:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1611289096; cv=none; d=google.com; s=arc-20160816; b=YESTEZDLjZpJWEuWDiELEgRgkz55IN0d+Lf2wpwk3nXQAXmRvsDPCzeoB6WLEteZI2 DqoIT3FMETTPi/9okz2h2o88axcz6ElXRezae4GLofqkn6ItdIMcDTpSxWXW5KNL38UL gAmQcBesy561Rq+pJT9lxKORVogy++srrGuXBFflpMnQ1YJUtdMEONrXCBlGUV5OK1Dt GeEsFhUiUk/xEJuLo8g0wGVrGPhRxmFVkJ8Jna4JlB8N4qgdBjU86F19KUpe16qevCpK +eg2sDt4yK+GEeqKz93Tk70OUxYJCjKnQomVYibvK7/3QjnrlsBQVvjreSRGspX6cMh3 S3eQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:references:message-id:in-reply-to :subject:cc:to:from:date; bh=9TUUZ6BoSnfn9QXnQZ1U361DdvWm0bjJLJ+MZ/D06hA=; b=eoLwqnKR+NRve4vN/Lh+x5MEuvjRQkvsty7bZldq6Wo6WGuyXfhvy9MePXoccxterO 8MoR9xYH2rUNmpFBvi8uteZE6dUvgB00iH8xM5Kr4DYy18I5J0xNyKopoaB1T3uGL3DA P4uFCaDSQnfgJCWDTO3qGkQt409RFrqADVjMIMBKH/j4p/VRCqWRjY2FGBKplQIDLkWu gbEhC0fJD15FonULs3aC3HrysEPXPBO+a0dzjQs7t6Xt3AK/3dQZP/NiQRthBAGRNcyE 6bMQjAHJHMZFdfNmvgxhKj0gWudAS4pZ3kl7AdBculxFW1tyeQmENFBlzaBEGj7e+Auh abXA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i12si2983469edk.461.2021.01.21.20.17.52; Thu, 21 Jan 2021 20:18:16 -0800 (PST) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726791AbhAVEQm (ORCPT + 99 others); Thu, 21 Jan 2021 23:16:42 -0500 Received: from namei.org ([65.99.196.166]:52958 "EHLO mail.namei.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726735AbhAVEQk (ORCPT ); Thu, 21 Jan 2021 23:16:40 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.namei.org (Postfix) with ESMTPS id A31BC49C; Fri, 22 Jan 2021 04:15:05 +0000 (UTC) Date: Fri, 22 Jan 2021 15:15:05 +1100 (AEDT) From: James Morris To: Christian Brauner cc: Alexander Viro , Christoph Hellwig , linux-fsdevel@vger.kernel.org, John Johansen , Mimi Zohar , Dmitry Kasatkin , Stephen Smalley , Casey Schaufler , Arnd Bergmann , Andreas Dilger , OGAWA Hirofumi , Geoffrey Thomas , Mrunal Patel , Josh Triplett , Andy Lutomirski , Theodore Tso , Alban Crequy , Tycho Andersen , David Howells , James Bottomley , Seth Forshee , =?ISO-8859-15?Q?St=E9phane_Graber?= , Linus Torvalds , Aleksa Sarai , Lennart Poettering , "Eric W. Biederman" , smbarber@chromium.org, Phil Estes , Serge Hallyn , Kees Cook , Todd Kjos , Paul Moore , Jonathan Corbet , containers@lists.linux-foundation.org, linux-security-module@vger.kernel.org, linux-api@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-integrity@vger.kernel.org, selinux@vger.kernel.org Subject: Re: [PATCH v6 18/40] utimes: handle idmapped mounts In-Reply-To: <20210121131959.646623-19-christian.brauner@ubuntu.com> Message-ID: <5165ca90-df52-ee82-7d17-f63639065b@namei.org> References: <20210121131959.646623-1-christian.brauner@ubuntu.com> <20210121131959.646623-19-christian.brauner@ubuntu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Thu, 21 Jan 2021, Christian Brauner wrote: > Enable the vfs_utimes() helper to handle idmapped mounts by passing down > the mount's user namespace. If the initial user namespace is passed > nothing changes so non-idmapped mounts will see identical behavior as > before. > > Link: https://lore.kernel.org/r/20210112220124.837960-26-christian.brauner@ubuntu.com > Cc: Christoph Hellwig > Cc: David Howells > Cc: Al Viro > Cc: linux-fsdevel@vger.kernel.org > Reviewed-by: Christoph Hellwig > Signed-off-by: Christian Brauner Reviewed-by: James Morris -- James Morris