2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
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.
10 #ifndef __RGRP_DOT_H__
11 #define __RGRP_DOT_H__
13 #include <linux/slab.h>
14 #include <linux/uaccess.h>
20 extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
22 extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact);
23 extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
24 extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
26 extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
27 extern int gfs2_rindex_update(struct gfs2_sbd *sdp);
28 extern void gfs2_free_clones(struct gfs2_rgrpd *rgd);
29 extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh);
30 extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh);
32 extern int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested);
33 extern void gfs2_inplace_release(struct gfs2_inode *ip);
35 extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
36 bool dinode, u64 *generation);
38 extern int gfs2_rs_alloc(struct gfs2_inode *ip);
39 extern void gfs2_rs_delete(struct gfs2_inode *ip);
40 extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
41 extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
42 extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
43 extern void gfs2_unlink_di(struct inode *inode);
44 extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
47 struct gfs2_rgrp_list {
48 unsigned int rl_rgrps;
49 unsigned int rl_space;
50 struct gfs2_rgrpd **rl_rgd;
51 struct gfs2_holder *rl_ghs;
54 extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
56 extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
57 extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
58 extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
59 extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
60 extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
61 struct buffer_head *bh,
62 const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed);
63 extern int gfs2_fitrim(struct file *filp, void __user *argp);
65 /* This is how to tell if a reservation is "inplace" reserved: */
66 static inline int gfs2_mb_reserved(struct gfs2_inode *ip)
68 if (ip->i_res && ip->i_res->rs_requested)
73 #endif /* __RGRP_DOT_H__ */