[people/ms/linux.git] / fs / gfs2 / trans.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 */

#ifndef __TRANS_DOT_H__
#define __TRANS_DOT_H__

#include <linux/buffer_head.h>
struct gfs2_sbd;
struct gfs2_rgrpd;
struct gfs2_glock;

#define RES_DINODE	1
#define RES_INDIRECT	1
#define RES_JDATA	1
#define RES_DATA	1
#define RES_LEAF	1
#define RES_RG_HDR	1
#define RES_RG_BIT	2
#define RES_EATTR	1
#define RES_STATFS	1
#define RES_QUOTA	2

/* reserve either the number of blocks to be allocated plus the rg header
 * block, or all of the blocks in the rg, whichever is smaller */
static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
{
	struct gfs2_rgrpd *rgd = ip->i_res.rs_rgd;

	if (requested < rgd->rd_length)
		return requested + 1;
	return rgd->rd_length;
}

extern int __gfs2_trans_begin(struct gfs2_trans *tr, struct gfs2_sbd *sdp,
			      unsigned int blocks, unsigned int revokes,
			      unsigned long ip);
extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
			    unsigned int revokes);

extern void gfs2_trans_end(struct gfs2_sbd *sdp);
extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh);
extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh);
extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
extern void gfs2_trans_remove_revoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
extern void gfs2_trans_free(struct gfs2_sbd *sdp, struct gfs2_trans *tr);

#endif /* __TRANS_DOT_H__ */
Commit	Line	Data
7336d0e6	1	/* SPDX-License-Identifier: GPL-2.0-only */
b3b94faa DT	2	/*
b3b94faa DT	3	* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3a8a9a10	4	* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
b3b94faa DT	5	*/
	6
	7	#ifndef __TRANS_DOT_H__
	8	#define __TRANS_DOT_H__
	9
f2f7ba52 SW	10	#include <linux/buffer_head.h>
	11	struct gfs2_sbd;
	12	struct gfs2_rgrpd;
	13	struct gfs2_glock;
	14
b3b94faa DT	15	#define RES_DINODE 1
	16	#define RES_INDIRECT 1
	17	#define RES_JDATA 1
	18	#define RES_DATA 1
	19	#define RES_LEAF 1
3921120e	20	#define RES_RG_HDR 1
b3b94faa DT	21	#define RES_RG_BIT 2
b3b94faa DT	22	#define RES_EATTR 1
b3b94faa DT	23	#define RES_STATFS 1
	24	#define RES_QUOTA 2
	25
bf97b673 BM	26	/* reserve either the number of blocks to be allocated plus the rg header
bf97b673 BM	27	* block, or all of the blocks in the rg, whichever is smaller */
71f890f7	28	static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
bf97b673	29	{
c65b76b8	30	struct gfs2_rgrpd *rgd = ip->i_res.rs_rgd;
b7eba890 AG	31
b7eba890 AG	32	if (requested < rgd->rd_length)
71f890f7	33	return requested + 1;
b7eba890	34	return rgd->rd_length;
bf97b673 BM	35	}
bf97b673 BM	36
c968f578 AG	37	extern int __gfs2_trans_begin(struct gfs2_trans tr, struct gfs2_sbd sdp,
	38	unsigned int blocks, unsigned int revokes,
	39	unsigned long ip);
7c9ca621 BP	40	extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
7c9ca621 BP	41	unsigned int revokes);
b3b94faa	42
7c9ca621	43	extern void gfs2_trans_end(struct gfs2_sbd *sdp);
350a9b0a SW	44	extern void gfs2_trans_add_data(struct gfs2_glock gl, struct buffer_head bh);
350a9b0a SW	45	extern void gfs2_trans_add_meta(struct gfs2_glock gl, struct buffer_head bh);
7c9ca621	46	extern void gfs2_trans_add_revoke(struct gfs2_sbd sdp, struct gfs2_bufdata bd);
fbb27873	47	extern void gfs2_trans_remove_revoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
b839dada	48	extern void gfs2_trans_free(struct gfs2_sbd sdp, struct gfs2_trans tr);
b3b94faa DT	49
b3b94faa DT	50	#endif /* __TRANS_DOT_H__ */