Btrfs: add tests for btrfs_get_extent

I'm going to be removing hole extents in the near future so I wanted to make a
sanity test for btrfs_get_extent to make sure I don't break anything in the
meantime.  This patch just puts btrfs_get_extent through its paces by giving it
a completely unreasonable mapping to look at and make sure it is giving us back
maps that make sense.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 697d527377c1..757ef00a75a4 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -24,11 +24,17 @@
 
 static struct vfsmount *test_mnt = NULL;
 
+static const struct super_operations btrfs_test_super_ops = {
+        .alloc_inode    = btrfs_alloc_inode,
+        .destroy_inode  = btrfs_test_destroy_inode,
+};
+
 static struct dentry *btrfs_test_mount(struct file_system_type *fs_type,
                                        int flags, const char *dev_name,
                                        void *data)
 {
-        return mount_pseudo(fs_type, "btrfs_test:", NULL, NULL, BTRFS_TEST_MAGIC);
+        return mount_pseudo(fs_type, "btrfs_test:", &btrfs_test_super_ops,
+                            NULL, BTRFS_TEST_MAGIC);
 }
 
 static struct file_system_type test_type = {