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)31 static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip)
32 {
33 const struct gfs2_blkreserv *rs = ip->i_res;
34 if (rs->rs_requested < ip->i_rgd->rd_length)
35 return rs->rs_requested + 1;
36 return ip->i_rgd->rd_length;
37 }
38
39 extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
40 unsigned int revokes);
41
42 extern void gfs2_trans_end(struct gfs2_sbd *sdp);
43 extern void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta);
44 extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
45 extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
46
47 #endif /* __TRANS_DOT_H__ */
48