blob: 3181c7e624bffd7b2666910c714007c525996505 [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Bob Petersonfe6c9912008-01-28 11:13:02 -06003 * Copyright (C) 2004-2008 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 __RGRP_DOT_H__
11#define __RGRP_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040013struct gfs2_rgrpd;
14struct gfs2_sbd;
15struct gfs2_holder;
16
David Teiglandb3b94fa2006-01-16 16:50:04 +000017void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
18
Steven Whitehousecd915492006-09-04 12:49:07 -040019struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);
David Teiglandb3b94fa2006-01-16 16:50:04 +000020struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
21struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
22
23void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
24int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
25
26int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
27void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
28void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
29
30void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
31
32struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
Steven Whitehouse2c1e52a2006-09-05 15:41:57 -040033static inline void gfs2_alloc_put(struct gfs2_inode *ip)
34{
Steven Whitehouse6dbd8222008-01-10 15:18:55 +000035 BUG_ON(ip->i_alloc == NULL);
36 kfree(ip->i_alloc);
37 ip->i_alloc = NULL;
Steven Whitehouse2c1e52a2006-09-05 15:41:57 -040038}
David Teiglandb3b94fa2006-01-16 16:50:04 +000039
40int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
41 char *file, unsigned int line);
42#define gfs2_inplace_reserve(ip) \
43gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
44
45void gfs2_inplace_release(struct gfs2_inode *ip);
46
Steven Whitehousecd915492006-09-04 12:49:07 -040047unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
David Teiglandb3b94fa2006-01-16 16:50:04 +000048
Steven Whitehouseb45e41d2008-02-06 10:11:15 +000049u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n);
Steven Whitehouse4340fe62006-07-11 09:46:33 -040050u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
David Teiglandb3b94fa2006-01-16 16:50:04 +000051
Steven Whitehousecd915492006-09-04 12:49:07 -040052void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
53void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
David Teiglandb3b94fa2006-01-16 16:50:04 +000054void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -040055void gfs2_unlink_di(struct inode *inode);
David Teiglandb3b94fa2006-01-16 16:50:04 +000056
57struct gfs2_rgrp_list {
58 unsigned int rl_rgrps;
59 unsigned int rl_space;
60 struct gfs2_rgrpd **rl_rgd;
61 struct gfs2_holder *rl_ghs;
62};
63
64void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
Steven Whitehousecd915492006-09-04 12:49:07 -040065 u64 block);
Bob Petersonfe6c9912008-01-28 11:13:02 -060066void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
David Teiglandb3b94fa2006-01-16 16:50:04 +000067void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
Robert Petersoncd81a4b2007-05-14 12:42:18 -050068u64 gfs2_ri_total(struct gfs2_sbd *sdp);
David Teiglandb3b94fa2006-01-16 16:50:04 +000069
70#endif /* __RGRP_DOT_H__ */