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