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David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
10#ifndef __TRANS_DOT_H__
11#define __TRANS_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040013#include <linux/buffer_head.h>
14struct gfs2_sbd;
15struct gfs2_rgrpd;
16struct gfs2_glock;
17
David Teiglandb3b94fa2006-01-16 16:50:04 +000018#define RES_DINODE 1
19#define RES_INDIRECT 1
20#define RES_JDATA 1
21#define RES_DATA 1
22#define RES_LEAF 1
Benjamin Marzinski39211202010-08-20 00:21:02 -050023#define RES_RG_HDR 1
David Teiglandb3b94fa2006-01-16 16:50:04 +000024#define RES_RG_BIT 2
25#define RES_EATTR 1
David Teiglandb3b94fa2006-01-16 16:50:04 +000026#define RES_STATFS 1
27#define RES_QUOTA 2
28
Benjamin Marzinskibf97b672010-09-27 16:00:04 -050029/* reserve either the number of blocks to be allocated plus the rg header
30 * block, or all of the blocks in the rg, whichever is smaller */
Steven Whitehouse54335b12011-09-01 13:31:59 +010031static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip)
Benjamin Marzinskibf97b672010-09-27 16:00:04 -050032{
Bob Peterson564e12b2011-11-21 13:36:17 -050033 const struct gfs2_blkreserv *rs = ip->i_res;
34 if (rs->rs_requested < ip->i_rgd->rd_length)
35 return rs->rs_requested + 1;
Steven Whitehouse54335b12011-09-01 13:31:59 +010036 return ip->i_rgd->rd_length;
Benjamin Marzinskibf97b672010-09-27 16:00:04 -050037}
38
Bob Peterson7c9ca622011-08-31 09:53:19 +010039extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
40 unsigned int revokes);
David Teiglandb3b94fa2006-01-16 16:50:04 +000041
Bob Peterson7c9ca622011-08-31 09:53:19 +010042extern void gfs2_trans_end(struct gfs2_sbd *sdp);
43extern void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta);
44extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
45extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
David Teiglandb3b94fa2006-01-16 16:50:04 +000046
47#endif /* __TRANS_DOT_H__ */