diff options
| author | Christian Brauner <christian.brauner@ubuntu.com> | 2021-07-27 12:48:55 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-08-23 13:19:14 +0200 |
| commit | e4fed17a32b6b1017ff2fb4cd73938abeeadd907 (patch) | |
| tree | 0503ec4bf0dd3d9e38373898e59bbafdcbada772 /fs/btrfs | |
| parent | aabb34e7a31c608dd7c00db9ad320e05941a39d0 (diff) | |
| download | linux-e4fed17a32b6b1017ff2fb4cd73938abeeadd907.tar.bz2 | |
btrfs: allow idmapped SET_RECEIVED_SUBVOL ioctls
The SET_RECEIVED_SUBVOL ioctls are used to set information about
a received subvolume. Make it possible to set information about a
received subvolume 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.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 63e7b2616302..aa60a9578747 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -4448,6 +4448,7 @@ static long btrfs_ioctl_quota_rescan_wait(struct btrfs_fs_info *fs_info, } static long _btrfs_ioctl_set_received_subvol(struct file *file, + struct user_namespace *mnt_userns, struct btrfs_ioctl_received_subvol_args *sa) { struct inode *inode = file_inode(file); @@ -4459,7 +4460,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file, int ret = 0; int received_uuid_changed; - if (!inode_owner_or_capable(&init_user_ns, inode)) + if (!inode_owner_or_capable(mnt_userns, inode)) return -EPERM; ret = mnt_want_write_file(file); @@ -4564,7 +4565,7 @@ static long btrfs_ioctl_set_received_subvol_32(struct file *file, args64->rtime.nsec = args32->rtime.nsec; args64->flags = args32->flags; - ret = _btrfs_ioctl_set_received_subvol(file, args64); + ret = _btrfs_ioctl_set_received_subvol(file, file_mnt_user_ns(file), args64); if (ret) goto out; @@ -4598,7 +4599,7 @@ static long btrfs_ioctl_set_received_subvol(struct file *file, if (IS_ERR(sa)) return PTR_ERR(sa); - ret = _btrfs_ioctl_set_received_subvol(file, sa); + ret = _btrfs_ioctl_set_received_subvol(file, file_mnt_user_ns(file), sa); if (ret) goto out; |