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authorChristian Brauner <christian.brauner@ubuntu.com>2021-07-27 12:48:56 +0200
committerDavid Sterba <dsterba@suse.com>2021-08-23 13:19:14 +0200
commit39e1674ff0351f6a47d3105e51bb1f9c72b3f20e (patch)
tree6ddd788e7a4ab63400825b13eb27e983a89ffcb7 /fs/btrfs
parente4fed17a32b6b1017ff2fb4cd73938abeeadd907 (diff)
btrfs: allow idmapped SUBVOL_SETFLAGS ioctl
Setting flags on subvolumes or snapshots are core features of btrfs. The SUBVOL_SETFLAGS ioctl is especially important as it allows to make subvolumes and snapshots read-only or read-write. Allow setting flags on btrfs subvolumes and snapshots on idmapped mounts. This is a fairly straightforward operation since all the permission checking helpers are already capable of handling idmapped mounts. So we just need to pass down the mount's userns. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/ioctl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index aa60a9578747..9d54149bad6e 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1988,7 +1988,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
u64 flags;
int ret = 0;
- if (!inode_owner_or_capable(&init_user_ns, inode))
+ if (!inode_owner_or_capable(file_mnt_user_ns(file), inode))
return -EPERM;
ret = mnt_want_write_file(file);