btrfs: export and rename qgroup_reserve_meta

commit 80e9bae upstream

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/btrfs/qgroup.c

@@ -3875,8 +3875,8 @@ static int sub_root_meta_rsv(struct btrfs_root *root, int num_bytes,
 	return num_bytes;
 }
 
-static int qgroup_reserve_meta(struct btrfs_root *root, int num_bytes,
-				enum btrfs_qgroup_rsv_type type, bool enforce)
+int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes,
+			      enum btrfs_qgroup_rsv_type type, bool enforce)
 {
 	struct btrfs_fs_info *fs_info = root->fs_info;
 	int ret;
@@ -3907,14 +3907,14 @@ int __btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes,
 {
 	int ret;
 
-	ret = qgroup_reserve_meta(root, num_bytes, type, enforce);
+	ret = btrfs_qgroup_reserve_meta(root, num_bytes, type, enforce);
 	if (ret <= 0 && ret != -EDQUOT)
 		return ret;
 
 	ret = try_flush_qgroup(root);
 	if (ret < 0)
 		return ret;
-	return qgroup_reserve_meta(root, num_bytes, type, enforce);
+	return btrfs_qgroup_reserve_meta(root, num_bytes, type, enforce);
 }
 
 void btrfs_qgroup_free_meta_all_pertrans(struct btrfs_root *root)

fs/btrfs/qgroup.h

@@ -361,6 +361,8 @@ int btrfs_qgroup_release_data(struct btrfs_inode *inode, u64 start, u64 len);
 int btrfs_qgroup_free_data(struct btrfs_inode *inode,
 			   struct extent_changeset *reserved, u64 start,
 			   u64 len);
+int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes,
+			      enum btrfs_qgroup_rsv_type type, bool enforce);
 int __btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes,
 				enum btrfs_qgroup_rsv_type type, bool enforce);
 /* Reserve metadata space for pertrans and prealloc type */