[mirror_ubuntu-artful-kernel.git] / fs / gfs2 / trans.h

/*
 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License version 2.
 */

#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)
{
	if (requested < ip->i_rgd->rd_length)
		return requested + 1;
	return ip->i_rgd->rd_length;
}

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_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);

#endif /* __TRANS_DOT_H__ */
Commit	Line	Data
b3b94faa DT	1	/*
b3b94faa DT	2	* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3a8a9a10	3	* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
b3b94faa DT	4	*
	5	* This copyrighted material is made available to anyone wishing to use,
	6	* modify, copy, or redistribute it subject to the terms and conditions
e9fc2aa0	7	* of the GNU General Public License version 2.
b3b94faa DT	8	*/
	9
	10	#ifndef __TRANS_DOT_H__
	11	#define __TRANS_DOT_H__
	12
f2f7ba52 SW	13	#include <linux/buffer_head.h>
	14	struct gfs2_sbd;
	15	struct gfs2_rgrpd;
	16	struct gfs2_glock;
	17
b3b94faa DT	18	#define RES_DINODE 1
	19	#define RES_INDIRECT 1
	20	#define RES_JDATA 1
	21	#define RES_DATA 1
	22	#define RES_LEAF 1
3921120e	23	#define RES_RG_HDR 1
b3b94faa DT	24	#define RES_RG_BIT 2
b3b94faa DT	25	#define RES_EATTR 1
b3b94faa DT	26	#define RES_STATFS 1
	27	#define RES_QUOTA 2
	28
bf97b673 BM	29	/* reserve either the number of blocks to be allocated plus the rg header
bf97b673 BM	30	* block, or all of the blocks in the rg, whichever is smaller */
71f890f7	31	static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
bf97b673	32	{
71f890f7 SW	33	if (requested < ip->i_rgd->rd_length)
71f890f7 SW	34	return requested + 1;
54335b1f	35	return ip->i_rgd->rd_length;
bf97b673 BM	36	}
bf97b673 BM	37
7c9ca621 BP	38	extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
7c9ca621 BP	39	unsigned int revokes);
b3b94faa	40
7c9ca621	41	extern void gfs2_trans_end(struct gfs2_sbd *sdp);
350a9b0a SW	42	extern void gfs2_trans_add_data(struct gfs2_glock gl, struct buffer_head bh);
350a9b0a SW	43	extern void gfs2_trans_add_meta(struct gfs2_glock gl, struct buffer_head bh);
7c9ca621 BP	44	extern void gfs2_trans_add_revoke(struct gfs2_sbd sdp, struct gfs2_bufdata bd);
7c9ca621 BP	45	extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
b3b94faa DT	46
b3b94faa DT	47	#endif /* __TRANS_DOT_H__ */