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gerrit-public.fairphone.software / fp2-dev / kernel / msm / 1639431a3f57b43da1e15e9268a1d691ac01ba26 / . / fs / gfs2 / rgrp.h
blob: 5e66613b33db88b754e2760514a8a34394672d93 [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.
Bob Petersonfe6c9912008-01-28 11:13:02 -0600[diff] [blame]3 * Copyright (C) 2004-2008 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 Whitehouse6dbd8222008-01-10 15:18:55 +0000[diff] [blame]35 BUG_ON(ip->i_alloc == NULL);
36 kfree(ip->i_alloc);
37 ip->i_alloc = NULL;
Steven Whitehouse2c1e52a2006-09-05 15:41:57 -0400[diff] [blame]38}
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]39
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 -0400[diff] [blame]47unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]48
Steven Whitehouse16394312008-02-01 14:52:30 +0000[diff] [blame^]49u64 gfs2_alloc_block(struct gfs2_inode *ip);
Steven Whitehouse4340fe62006-07-11 09:46:33 -0400[diff] [blame]50u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]51
Steven Whitehousecd915492006-09-04 12:49:07 -0400[diff] [blame]52void 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 +0000[diff] [blame]54void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
Steven Whitehousefeaa7bb2006-06-14 15:32:57 -0400[diff] [blame]55void gfs2_unlink_di(struct inode *inode);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]56
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 -0400[diff] [blame]65 u64 block);
Bob Petersonfe6c9912008-01-28 11:13:02 -0600[diff] [blame]66void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]67void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
Robert Petersoncd81a4b2007-05-14 12:42:18 -0500[diff] [blame]68u64 gfs2_ri_total(struct gfs2_sbd *sdp);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000[diff] [blame]69
70#endif /* __RGRP_DOT_H__ */