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 int xfs_ag_get_geometry(struct xfs_mount *mp, xfs_agnumber_t agno,
30 struct xfs_ag_geometry *ageo);
31
32 #endif /* __LIBXFS_AG_H */