tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
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
7 * of the GNU General Public License version 2.
8 */
9
10#ifndef __RGRP_DOT_H__
11#define __RGRP_DOT_H__
12
13#include <linux/slab.h>
14#include <linux/uaccess.h>
15
16struct gfs2_rgrpd;
17struct gfs2_sbd;
18struct gfs2_holder;
19
20extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
21
22extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact);
23extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
24extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
25
26extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
27extern int gfs2_rindex_update(struct gfs2_sbd *sdp);
28extern void gfs2_free_clones(struct gfs2_rgrpd *rgd);
29extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh);
30extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh);
31
32extern struct gfs2_qadata *gfs2_qadata_get(struct gfs2_inode *ip);
33static inline void gfs2_qadata_put(struct gfs2_inode *ip)
34{
35 BUG_ON(ip->i_qadata == NULL);
36 kfree(ip->i_qadata);
37 ip->i_qadata = NULL;
38}
39
40extern int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested);
41extern void gfs2_inplace_release(struct gfs2_inode *ip);
42
43extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
44 bool dinode, u64 *generation);
45
46extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
47extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
48extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
49extern void gfs2_unlink_di(struct inode *inode);
50extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
51 unsigned int type);
52
53struct gfs2_rgrp_list {
54 unsigned int rl_rgrps;
55 unsigned int rl_space;
56 struct gfs2_rgrpd **rl_rgd;
57 struct gfs2_holder *rl_ghs;
58};
59
60extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
61 u64 block);
62extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
63extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
64extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
65extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
66extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
67 struct buffer_head *bh,
68 const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed);
69extern int gfs2_fitrim(struct file *filp, void __user *argp);
70
71#endif /* __RGRP_DOT_H__ */