xref: /openbmc/linux/fs/gfs2/trans.h (revision 9726bfcd)
1  /* SPDX-License-Identifier: GPL-2.0-only */
2  /*
3   * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
4   * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
5   */
6  
7  #ifndef __TRANS_DOT_H__
8  #define __TRANS_DOT_H__
9  
10  #include <linux/buffer_head.h>
11  struct gfs2_sbd;
12  struct gfs2_rgrpd;
13  struct gfs2_glock;
14  
15  #define RES_DINODE	1
16  #define RES_INDIRECT	1
17  #define RES_JDATA	1
18  #define RES_DATA	1
19  #define RES_LEAF	1
20  #define RES_RG_HDR	1
21  #define RES_RG_BIT	2
22  #define RES_EATTR	1
23  #define RES_STATFS	1
24  #define RES_QUOTA	2
25  
26  /* reserve either the number of blocks to be allocated plus the rg header
27   * block, or all of the blocks in the rg, whichever is smaller */
28  static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
29  {
30  	struct gfs2_rgrpd *rgd = ip->i_res.rs_rbm.rgd;
31  
32  	if (requested < rgd->rd_length)
33  		return requested + 1;
34  	return rgd->rd_length;
35  }
36  
37  extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
38  			    unsigned int revokes);
39  
40  extern void gfs2_trans_end(struct gfs2_sbd *sdp);
41  extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh);
42  extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh);
43  extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
44  extern void gfs2_trans_remove_revoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
45  
46  #endif /* __TRANS_DOT_H__ */
47