1 /*
2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
3  * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
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
7  * of the GNU General Public License version 2.
8  */
9 
10 #ifndef __TRANS_DOT_H__
11 #define __TRANS_DOT_H__
12 
13 #include <linux/buffer_head.h>
14 struct gfs2_sbd;
15 struct gfs2_rgrpd;
16 struct gfs2_glock;
17 
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
23 #define RES_RG_HDR	1
24 #define RES_RG_BIT	2
25 #define RES_EATTR	1
26 #define RES_STATFS	1
27 #define RES_QUOTA	2
28 
29 /* 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 */
gfs2_rg_blocks(const struct gfs2_inode * ip,unsigned requested)31 static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
32 {
33 	struct gfs2_rgrpd *rgd = ip->i_res.rs_rbm.rgd;
34 
35 	if (requested < rgd->rd_length)
36 		return requested + 1;
37 	return rgd->rd_length;
38 }
39 
40 extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
41 			    unsigned int revokes);
42 
43 extern void gfs2_trans_end(struct gfs2_sbd *sdp);
44 extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh);
45 extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh);
46 extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
47 extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
48 
49 #endif /* __TRANS_DOT_H__ */
50