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gerrit-public.fairphone.software / fp2-dev / kernel / msm / 229695e51efc4ed5e04ab471c82591d0f432909d / . / fs / gfs2 / rgrp.h
blob: b01e0cfc99b5fc8d38a3b04d059b66fa2c7c4542 [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -0400[diff] [blame]3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]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
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -0400[diff] [blame]7 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]8 */
9
10#ifndef __RGRP_DOT_H__
11#define __RGRP_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -0400[diff] [blame]13struct gfs2_rgrpd;
14struct gfs2_sbd;
15struct gfs2_holder;
16
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]17void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
18
Steven Whitehousecd915492006-09-04 12:49:07 -0400[diff] [blame]19struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]20struct 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 -0400[diff] [blame]33static inline void gfs2_alloc_put(struct gfs2_inode *ip)
34{
Steven Whitehousef5c54802006-10-10 13:45:15 -0400[diff] [blame]35 return; /* So we can see where ip->i_alloc is used */
Steven Whitehouse2c1e52a2006-09-05 15:41:57 -0400[diff] [blame]36}
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]37
38int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
39 char *file, unsigned int line);
40#define gfs2_inplace_reserve(ip) \
41gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
42
43void gfs2_inplace_release(struct gfs2_inode *ip);
44
Steven Whitehousecd915492006-09-04 12:49:07 -0400[diff] [blame]45unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]46
Steven Whitehouse4340fe62006-07-11 09:46:33 -0400[diff] [blame]47u64 gfs2_alloc_data(struct gfs2_inode *ip);
48u64 gfs2_alloc_meta(struct gfs2_inode *ip);
49u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]50
Steven Whitehousecd915492006-09-04 12:49:07 -0400[diff] [blame]51void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
52void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]53void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400[diff] [blame]54void gfs2_unlink_di(struct inode *inode);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]55
56struct gfs2_rgrp_list {
57 unsigned int rl_rgrps;
58 unsigned int rl_space;
59 struct gfs2_rgrpd **rl_rgd;
60 struct gfs2_holder *rl_ghs;
61};
62
63void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
Steven Whitehousecd915492006-09-04 12:49:07 -0400[diff] [blame]64 u64 block);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]65void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
66 int flags);
67void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
68
69#endif /* __RGRP_DOT_H__ */