From mboxrd@z Thu Jan 1 00:00:00 1970 From: Miklos Szeredi Subject: Re: [PATCH 07/11] fs: Allow CAP_SYS_ADMIN in s_user_ns to freeze and thaw filesystems Date: Wed, 14 Feb 2018 13:28:12 +0100 Message-ID: References: <61a37f0b159dd56825696d8d3beb8eaffdf1f72f.1512041070.git.dongsu@kinvolk.io> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <61a37f0b159dd56825696d8d3beb8eaffdf1f72f.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Dongsu Park Cc: Linux Containers , lkml , Seth Forshee , Alban Crequy , "Eric W . Biederman" , Sargun Dhillon , linux-fsdevel , Alexander Viro List-Id: containers.vger.kernel.org On Fri, Dec 22, 2017 at 3:32 PM, Dongsu Park wrote: > From: Seth Forshee > > The user in control of a super block should be allowed to freeze > and thaw it. Relax the restrictions on the FIFREEZE and FITHAW > ioctls to require CAP_SYS_ADMIN in s_user_ns. Why is this required for unprivileged fuse? Fuse doesn't support freeze, so this seems to make no sense in the context of this patchset. Thanks, Miklos