btrfs: qgroup: Cleanup old inaccurate facilities

Cleanup the old facilities which use old btrfs_qgroup_reserve() function
call, replace them with the newer version, and remove the "__" prefix in
them.

Also, make btrfs_qgroup_reserve/free() functions private, as they are
now only used inside qgroup codes.

Now, the whole btrfs qgroup is swithed to use the new reserve facilities.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 78bc09c552ab..767a6056ac45 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -488,17 +488,17 @@ again:
         /* Just to make sure we have enough space */
         prealloc += 8 * PAGE_CACHE_SIZE;
 
-        ret = __btrfs_delalloc_reserve_space(inode, 0, prealloc);
+        ret = btrfs_delalloc_reserve_space(inode, 0, prealloc);
         if (ret)
                 goto out_put;
 
         ret = btrfs_prealloc_file_range_trans(inode, trans, 0, 0, prealloc,
                                               prealloc, prealloc, &alloc_hint);
         if (ret) {
-                __btrfs_delalloc_release_space(inode, 0, prealloc);
+                btrfs_delalloc_release_space(inode, 0, prealloc);
                 goto out_put;
         }
-        __btrfs_free_reserved_data_space(inode, 0, prealloc);
+        btrfs_free_reserved_data_space(inode, 0, prealloc);
 
         ret = btrfs_write_out_ino_cache(root, trans, path, inode);
 out_put: