btrfs: allow idmapped tmpfile inode op

Enable btrfs_tmpfile() to handle idmapped mounts. This is just a matter
of passing 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>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0ffd48f9b685476c80f98c7a4e6a0d909c86ba59..c040d9925077f8d0854c95a9d200870b22c1a8df 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -10429,7 +10429,7 @@ static int btrfs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
        if (ret)
                goto out;
 
-       inode = btrfs_new_inode(trans, root, &init_user_ns, dir, NULL, 0,
+       inode = btrfs_new_inode(trans, root, mnt_userns, dir, NULL, 0,
                        btrfs_ino(BTRFS_I(dir)), objectid, mode, &index);
        if (IS_ERR(inode)) {
                ret = PTR_ERR(inode);