[linux.git] / fs / xfs / libxfs / xfs_ag.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2018 Red Hat, Inc.
 * All rights reserved.
 */

#ifndef __LIBXFS_AG_H
#define __LIBXFS_AG_H 1

struct xfs_mount;
struct xfs_trans;

struct aghdr_init_data {
	/* per ag data */
	xfs_agblock_t		agno;		/* ag to init */
	xfs_extlen_t		agsize;		/* new AG size */
	struct list_head	buffer_list;	/* buffer writeback list */
	xfs_rfsblock_t		nfree;		/* cumulative new free space */

	/* per header data */
	xfs_daddr_t		daddr;		/* header location */
	size_t			numblks;	/* size of header */
	xfs_btnum_t		type;		/* type of btree root block */
};

int xfs_ag_init_headers(struct xfs_mount *mp, struct aghdr_init_data *id);
int xfs_ag_extend_space(struct xfs_mount *mp, struct xfs_trans *tp,
			struct aghdr_init_data *id, xfs_extlen_t len);

#endif /* __LIBXFS_AG_H */
Commit	Line	Data
b16817b6 DC	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
49dd56f2 DC	10	struct xfs_mount;
	11	struct xfs_trans;
	12
b16817b6 DC	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
49dd56f2 DC	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);
b16817b6 DC	29
b16817b6 DC	30	#endif /* __LIBXFS_AG_H */