1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2018 Red Hat, Inc.
4  * All rights reserved.
5  */
6 
7 #ifndef __LIBXFS_AG_H
8 #define __LIBXFS_AG_H 1
9 
10 struct xfs_mount;
11 struct xfs_trans;
12 
13 struct aghdr_init_data {
14 	/* per ag data */
15 	xfs_agblock_t		agno;		/* ag to init */
16 	xfs_extlen_t		agsize;		/* new AG size */
17 	struct list_head	buffer_list;	/* buffer writeback list */
18 	xfs_rfsblock_t		nfree;		/* cumulative new free space */
19 
20 	/* per header data */
21 	xfs_daddr_t		daddr;		/* header location */
22 	size_t			numblks;	/* size of header */
23 	xfs_btnum_t		type;		/* type of btree root block */
24 };
25 
26 int xfs_ag_init_headers(struct xfs_mount *mp, struct aghdr_init_data *id);
27 int xfs_ag_extend_space(struct xfs_mount *mp, struct xfs_trans *tp,
28 			struct aghdr_init_data *id, xfs_extlen_t len);
29 
30 #endif /* __LIBXFS_AG_H */
31