From: Christian Brauner <christian.brauner@ubuntu.com> To: Alexander Viro <viro@zeniv.linux.org.uk>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org Cc: Andy Lutomirski <luto@kernel.org>, Mimi Zohar <zohar@linux.ibm.com>, James Bottomley <James.Bottomley@hansenpartnership.com>, Andreas Dilger <adilger.kernel@dilger.ca>, containers@lists.linux-foundation.org, Christoph Hellwig <hch@lst.de>, Tycho Andersen <tycho@tycho.ws>, Paul Moore <paul@paul-moore.com>, Jonathan Corbet <corbet@lwn.net>, smbarber@chromium.org, linux-ext4@vger.kernel.org, Mrunal Patel <mpatel@redhat.com>, Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>, selinux@vger.kernel.org, Josh Triplett <josh@joshtriplett.org>, Seth Forshee <seth.forshee@canonical.com>, Aleksa Sarai <cyphar@cyphar.com>, Lennart Poettering <lennart@poettering.net>, OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>, Geoffrey Thomas <geofft@ldpreload.com>, David Howells <dhowells@redhat.com>, John Johansen <john.johansen@canonical.com>, Theodore Tso <tytso@mit.edu>, Dmitry Kasatkin <dmitry.kasatkin@gmail.com>, Stephen Smalley <stephen.smalley.work@gmail.com>, fstests@vger.kernel.org, linux-security-module@vger.kernel.org, "Eric W. Biederman" <ebiederm@xmission.com>, linux-api@vger.kernel.org, Casey Schaufler <casey@schaufler-ca.com>, Alban Crequy <alban@kinvolk.io>, linux-integrity@vger.kernel.org, Todd Kjos <tkjos@google.com> Subject: [PATCH v3 07/38] mount: attach mappings to mounts Date: Sat, 28 Nov 2020 22:34:56 +0100 [thread overview] Message-ID: <20201128213527.2669807-8-christian.brauner@ubuntu.com> (raw) In-Reply-To: <20201128213527.2669807-1-christian.brauner@ubuntu.com> In order to support per-mount idmappings vfsmounts will be marked with user namespaces. The idmapping associated with that user namespace will be used to map the ids of vfs objects when they are accessed through that mount. By default all vfsmounts are marked with the initial user namespace. The initial user namespace is used to indicate that a mount is not idmapped. All operations behave as before. Based on prior discussions we want to attach the whole user namespace and not just a dedicated idmapping struct. This allows us to reuse all the helpers that already exist for dealing with idmappings instead of introducing a whole new range of helpers. In addition, if we decide in the future that we are confident enough to enable unprivileged users to setup idmapped mounts we can allow already idmapped mounts to be marked with another user namespace. The permission checking would then take into account whether the caller is privileged in the user namespace the mount is currently marked with. For now, we will enforce in later patches that once a mount has been idmapped it can't be remapped. This keeps permission checking and life-cycle management simple, especially since users can always create a new mount with a different idmapping anyway. The idea to attach user namespaces to vfsmounts has been floated around in various forms at Linux Plumbers in ~2018 with the original idea tracing back to a discussion during a conference in St. Petersburg between Christoph, Tycho, and myself. Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> --- /* v2 */ patch introduced - Christoph Hellwig <hch@lst.de>: - Split internal implementation into separate patch and move syscall implementation later. /* v3 */ - David Howells <dhowells@redhat.com>: - Remove MNT_IDMAPPED flag. We can simply check the pointer and use smp_load_acquire() in later patches. - Tycho Andersen <tycho@tycho.pizza>: - Use READ_ONCE() in mnt_user_ns(). --- fs/namespace.c | 9 +++++++++ include/linux/fs.h | 1 + include/linux/mount.h | 6 ++++++ 3 files changed, 16 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index f9ea31b7eb7f..a1fda548c3af 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -220,6 +220,7 @@ static struct mount *alloc_vfsmnt(const char *name) INIT_HLIST_NODE(&mnt->mnt_mp_list); INIT_LIST_HEAD(&mnt->mnt_umounting); INIT_HLIST_HEAD(&mnt->mnt_stuck_children); + mnt->mnt.mnt_user_ns = &init_user_ns; } return mnt; @@ -559,6 +560,11 @@ int sb_prepare_remount_readonly(struct super_block *sb) static void free_vfsmnt(struct mount *mnt) { + struct user_namespace *ns; + + ns = mnt_user_ns(&mnt->mnt); + if (ns != &init_user_ns) + put_user_ns(ns); kfree_const(mnt->mnt_devname); #ifdef CONFIG_SMP free_percpu(mnt->mnt_pcp); @@ -1067,6 +1073,9 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root, mnt->mnt.mnt_flags &= ~(MNT_WRITE_HOLD|MNT_MARKED|MNT_INTERNAL); atomic_inc(&sb->s_active); + mnt->mnt.mnt_user_ns = mnt_user_ns(&old->mnt); + if (mnt->mnt.mnt_user_ns != &init_user_ns) + mnt->mnt.mnt_user_ns = get_user_ns(mnt->mnt.mnt_user_ns); mnt->mnt.mnt_sb = sb; mnt->mnt.mnt_root = dget(root); mnt->mnt_mountpoint = mnt->mnt.mnt_root; diff --git a/include/linux/fs.h b/include/linux/fs.h index f59b7f16f216..004686f49e32 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2276,6 +2276,7 @@ struct file_system_type { #define FS_HAS_SUBTYPE 4 #define FS_USERNS_MOUNT 8 /* Can be mounted by userns root */ #define FS_DISALLOW_NOTIFY_PERM 16 /* Disable fanotify permission events */ +#define FS_ALLOW_IDMAP 32 /* FS has been updated to handle vfs idmappings. */ #define FS_THP_SUPPORT 8192 /* Remove once all fs converted */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ int (*init_fs_context)(struct fs_context *); diff --git a/include/linux/mount.h b/include/linux/mount.h index aaf343b38671..d0d4a270acea 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -72,8 +72,14 @@ struct vfsmount { struct dentry *mnt_root; /* root of the mounted tree */ struct super_block *mnt_sb; /* pointer to superblock */ int mnt_flags; + struct user_namespace *mnt_user_ns; } __randomize_layout; +static inline struct user_namespace *mnt_user_ns(const struct vfsmount *mnt) +{ + return READ_ONCE(mnt->mnt_user_ns); +} + struct file; /* forward dec */ struct path; -- 2.29.2 _______________________________________________ Containers mailing list Containers@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/containers
WARNING: multiple messages have this Message-ID (diff)
From: Christian Brauner <christian.brauner@ubuntu.com> To: Alexander Viro <viro@zeniv.linux.org.uk>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org Cc: "John Johansen" <john.johansen@canonical.com>, "James Morris" <jmorris@namei.org>, "Mimi Zohar" <zohar@linux.ibm.com>, "Dmitry Kasatkin" <dmitry.kasatkin@gmail.com>, "Stephen Smalley" <stephen.smalley.work@gmail.com>, "Casey Schaufler" <casey@schaufler-ca.com>, "Arnd Bergmann" <arnd@arndb.de>, "Andreas Dilger" <adilger.kernel@dilger.ca>, "OGAWA Hirofumi" <hirofumi@mail.parknet.co.jp>, "Geoffrey Thomas" <geofft@ldpreload.com>, "Mrunal Patel" <mpatel@redhat.com>, "Josh Triplett" <josh@joshtriplett.org>, "Andy Lutomirski" <luto@kernel.org>, "Theodore Tso" <tytso@mit.edu>, "Alban Crequy" <alban@kinvolk.io>, "Tycho Andersen" <tycho@tycho.ws>, "David Howells" <dhowells@redhat.com>, "James Bottomley" <James.Bottomley@hansenpartnership.com>, "Seth Forshee" <seth.forshee@canonical.com>, "Stéphane Graber" <stgraber@ubuntu.com>, "Aleksa Sarai" <cyphar@cyphar.com>, "Lennart Poettering" <lennart@poettering.net>, "Eric W. Biederman" <ebiederm@xmission.com>, smbarber@chromium.org, "Phil Estes" <estesp@gmail.com>, "Serge Hallyn" <serge@hallyn.com>, "Kees Cook" <keescook@chromium.org>, "Todd Kjos" <tkjos@google.com>, "Paul Moore" <paul@paul-moore.com>, "Jonathan Corbet" <corbet@lwn.net>, containers@lists.linux-foundation.org, fstests@vger.kernel.org, linux-security-module@vger.kernel.org, linux-api@vger.kernel.org, linux-ext4@vger.kernel.org, linux-integrity@vger.kernel.org, selinux@vger.kernel.org, "Christian Brauner" <christian.brauner@ubuntu.com>, "Christoph Hellwig" <hch@lst.de> Subject: [PATCH v3 07/38] mount: attach mappings to mounts Date: Sat, 28 Nov 2020 22:34:56 +0100 [thread overview] Message-ID: <20201128213527.2669807-8-christian.brauner@ubuntu.com> (raw) In-Reply-To: <20201128213527.2669807-1-christian.brauner@ubuntu.com> In order to support per-mount idmappings vfsmounts will be marked with user namespaces. The idmapping associated with that user namespace will be used to map the ids of vfs objects when they are accessed through that mount. By default all vfsmounts are marked with the initial user namespace. The initial user namespace is used to indicate that a mount is not idmapped. All operations behave as before. Based on prior discussions we want to attach the whole user namespace and not just a dedicated idmapping struct. This allows us to reuse all the helpers that already exist for dealing with idmappings instead of introducing a whole new range of helpers. In addition, if we decide in the future that we are confident enough to enable unprivileged users to setup idmapped mounts we can allow already idmapped mounts to be marked with another user namespace. The permission checking would then take into account whether the caller is privileged in the user namespace the mount is currently marked with. For now, we will enforce in later patches that once a mount has been idmapped it can't be remapped. This keeps permission checking and life-cycle management simple, especially since users can always create a new mount with a different idmapping anyway. The idea to attach user namespaces to vfsmounts has been floated around in various forms at Linux Plumbers in ~2018 with the original idea tracing back to a discussion during a conference in St. Petersburg between Christoph, Tycho, and myself. Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> --- /* v2 */ patch introduced - Christoph Hellwig <hch@lst.de>: - Split internal implementation into separate patch and move syscall implementation later. /* v3 */ - David Howells <dhowells@redhat.com>: - Remove MNT_IDMAPPED flag. We can simply check the pointer and use smp_load_acquire() in later patches. - Tycho Andersen <tycho@tycho.pizza>: - Use READ_ONCE() in mnt_user_ns(). --- fs/namespace.c | 9 +++++++++ include/linux/fs.h | 1 + include/linux/mount.h | 6 ++++++ 3 files changed, 16 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index f9ea31b7eb7f..a1fda548c3af 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -220,6 +220,7 @@ static struct mount *alloc_vfsmnt(const char *name) INIT_HLIST_NODE(&mnt->mnt_mp_list); INIT_LIST_HEAD(&mnt->mnt_umounting); INIT_HLIST_HEAD(&mnt->mnt_stuck_children); + mnt->mnt.mnt_user_ns = &init_user_ns; } return mnt; @@ -559,6 +560,11 @@ int sb_prepare_remount_readonly(struct super_block *sb) static void free_vfsmnt(struct mount *mnt) { + struct user_namespace *ns; + + ns = mnt_user_ns(&mnt->mnt); + if (ns != &init_user_ns) + put_user_ns(ns); kfree_const(mnt->mnt_devname); #ifdef CONFIG_SMP free_percpu(mnt->mnt_pcp); @@ -1067,6 +1073,9 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root, mnt->mnt.mnt_flags &= ~(MNT_WRITE_HOLD|MNT_MARKED|MNT_INTERNAL); atomic_inc(&sb->s_active); + mnt->mnt.mnt_user_ns = mnt_user_ns(&old->mnt); + if (mnt->mnt.mnt_user_ns != &init_user_ns) + mnt->mnt.mnt_user_ns = get_user_ns(mnt->mnt.mnt_user_ns); mnt->mnt.mnt_sb = sb; mnt->mnt.mnt_root = dget(root); mnt->mnt_mountpoint = mnt->mnt.mnt_root; diff --git a/include/linux/fs.h b/include/linux/fs.h index f59b7f16f216..004686f49e32 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2276,6 +2276,7 @@ struct file_system_type { #define FS_HAS_SUBTYPE 4 #define FS_USERNS_MOUNT 8 /* Can be mounted by userns root */ #define FS_DISALLOW_NOTIFY_PERM 16 /* Disable fanotify permission events */ +#define FS_ALLOW_IDMAP 32 /* FS has been updated to handle vfs idmappings. */ #define FS_THP_SUPPORT 8192 /* Remove once all fs converted */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ int (*init_fs_context)(struct fs_context *); diff --git a/include/linux/mount.h b/include/linux/mount.h index aaf343b38671..d0d4a270acea 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -72,8 +72,14 @@ struct vfsmount { struct dentry *mnt_root; /* root of the mounted tree */ struct super_block *mnt_sb; /* pointer to superblock */ int mnt_flags; + struct user_namespace *mnt_user_ns; } __randomize_layout; +static inline struct user_namespace *mnt_user_ns(const struct vfsmount *mnt) +{ + return READ_ONCE(mnt->mnt_user_ns); +} + struct file; /* forward dec */ struct path; -- 2.29.2
next prev parent reply other threads:[~2020-11-28 21:46 UTC|newest] Thread overview: 150+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-28 21:34 [PATCH v3 00/38] idmapped mounts Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 01/38] namespace: take lock_mount_hash() directly when changing flags Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-12-01 10:31 ` Christoph Hellwig 2020-12-01 10:31 ` Christoph Hellwig 2020-12-02 9:09 ` Christian Brauner 2020-12-02 9:09 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 02/38] mount: make {lock,unlock}_mount_hash() static Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-12-01 10:32 ` Christoph Hellwig 2020-12-01 10:32 ` Christoph Hellwig 2020-12-02 9:11 ` Christian Brauner 2020-12-02 9:11 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 03/38] namespace: only take read lock in do_reconfigure_mnt() Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-12-01 10:32 ` Christoph Hellwig 2020-12-01 10:32 ` Christoph Hellwig 2020-12-02 9:14 ` Christian Brauner 2020-12-02 9:14 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 04/38] fs: add mount_setattr() Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-12-01 10:49 ` Christoph Hellwig 2020-12-01 10:49 ` Christoph Hellwig 2020-12-02 9:42 ` Christian Brauner 2020-12-02 9:42 ` Christian Brauner 2020-12-02 9:47 ` Christoph Hellwig 2020-12-02 9:47 ` Christoph Hellwig 2020-12-02 9:55 ` Christoph Hellwig 2020-12-02 9:55 ` Christoph Hellwig 2020-12-02 9:57 ` Christian Brauner 2020-12-02 9:57 ` Christian Brauner 2020-12-02 10:01 ` Christoph Hellwig 2020-12-02 10:01 ` Christoph Hellwig 2020-11-28 21:34 ` [PATCH v3 05/38] tests: add mount_setattr() selftests Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 06/38] fs: add id translation helpers Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-12-01 10:49 ` Christoph Hellwig 2020-12-01 10:49 ` Christoph Hellwig 2020-12-02 9:16 ` Christian Brauner 2020-12-02 9:16 ` Christian Brauner 2020-11-28 21:34 ` Christian Brauner [this message] 2020-11-28 21:34 ` [PATCH v3 07/38] mount: attach mappings to mounts Christian Brauner 2020-12-01 10:50 ` Christoph Hellwig 2020-12-01 10:50 ` Christoph Hellwig 2020-12-01 13:25 ` Tycho Andersen 2020-12-01 13:25 ` Tycho Andersen 2020-12-02 9:24 ` Christian Brauner 2020-12-02 9:24 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 08/38] capability: handle idmapped mounts Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-11-28 22:34 ` Serge E. Hallyn 2020-11-28 22:34 ` Serge E. Hallyn 2020-11-28 21:34 ` [PATCH v3 09/38] namei: add idmapped mount aware permission helpers Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-11-28 22:47 ` Serge E. Hallyn 2020-11-28 22:47 ` Serge E. Hallyn 2020-12-01 10:58 ` Christian Brauner 2020-12-01 10:58 ` Christian Brauner 2020-12-01 10:51 ` Christoph Hellwig 2020-12-01 10:51 ` Christoph Hellwig 2020-12-01 10:58 ` Christian Brauner 2020-12-01 10:58 ` Christian Brauner 2020-11-28 21:34 ` [PATCH v3 10/38] inode: add idmapped mount aware init and " Christian Brauner 2020-11-28 21:34 ` Christian Brauner 2020-12-01 10:51 ` Christoph Hellwig 2020-12-01 10:51 ` Christoph Hellwig 2020-12-02 9:17 ` Christian Brauner 2020-12-02 9:17 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 11/38] attr: handle idmapped mounts Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 12/38] acl: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 13/38] xattr: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 14/38] commoncap: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 15/38] stat: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 16/38] namei: handle idmapped mounts in may_*() helpers Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 17/38] namei: introduce struct renamedata Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-12-01 10:53 ` Christoph Hellwig 2020-12-01 10:53 ` Christoph Hellwig 2020-12-02 9:18 ` Christian Brauner 2020-12-02 9:18 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 18/38] namei: prepare for idmapped mounts Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 19/38] open: handle idmapped mounts in do_truncate() Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 20/38] open: handle idmapped mounts Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 21/38] af_unix: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 22/38] utimes: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 23/38] fcntl: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 24/38] notify: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 25/38] init: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 26/38] ioctl: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 27/38] would_dump: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 28/38] exec: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 29/38] fs: add helpers for idmap mounts Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 30/38] apparmor: handle idmapped mounts Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 31/38] ima: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 32/38] fat: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-30 22:50 ` Mauricio Vásquez Bernal 2020-11-30 22:50 ` Mauricio Vásquez Bernal 2020-12-01 10:24 ` Christian Brauner 2020-12-01 10:24 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 33/38] ext4: support " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-30 22:52 ` Mauricio Vásquez Bernal 2020-11-30 22:52 ` Mauricio Vásquez Bernal 2020-12-01 10:28 ` Christian Brauner 2020-12-01 10:28 ` Christian Brauner 2020-12-01 10:54 ` Christoph Hellwig 2020-12-01 10:54 ` Christoph Hellwig 2020-12-01 11:02 ` Christian Brauner 2020-12-01 11:02 ` Christian Brauner 2020-12-01 11:13 ` Christoph Hellwig 2020-12-01 11:13 ` Christoph Hellwig 2020-12-01 11:14 ` Christian Brauner 2020-12-01 11:14 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 34/38] ecryptfs: do not mount on top of " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 35/38] overlayfs: " Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 36/38] fs: introduce MOUNT_ATTR_IDMAP Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 37/38] tests: extend mount_setattr tests Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 21:35 ` [PATCH v3 38/38] generic/618: add fstests for idmapped mounts Christian Brauner 2020-11-28 21:35 ` Christian Brauner 2020-11-28 22:54 ` [PATCH v3 00/38] " Serge E. Hallyn 2020-11-28 22:54 ` Serge E. Hallyn 2020-12-01 10:18 ` Christian Brauner 2020-12-01 10:18 ` Christian Brauner
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