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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - fs/gfs2/rgrp.h
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 struct gfs2_qadata
*gfs2_qadata_get(struct gfs2_inode
*ip
);
33 static inline void gfs2_qadata_put(struct gfs2_inode
*ip
)
35 BUG_ON(ip
->i_qadata
== NULL
);
40 extern int gfs2_inplace_reserve(struct gfs2_inode
*ip
, u32 requested
);
41 extern void gfs2_inplace_release(struct gfs2_inode
*ip
);
43 extern int gfs2_alloc_blocks(struct gfs2_inode
*ip
, u64
*bn
, unsigned int *n
,
44 bool dinode
, u64
*generation
);
46 extern void __gfs2_free_blocks(struct gfs2_inode
*ip
, u64 bstart
, u32 blen
, int meta
);
47 extern void gfs2_free_meta(struct gfs2_inode
*ip
, u64 bstart
, u32 blen
);
48 extern void gfs2_free_di(struct gfs2_rgrpd
*rgd
, struct gfs2_inode
*ip
);
49 extern void gfs2_unlink_di(struct inode
*inode
);
50 extern int gfs2_check_blk_type(struct gfs2_sbd
*sdp
, u64 no_addr
,
53 struct 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
;
60 extern void gfs2_rlist_add(struct gfs2_inode
*ip
, struct gfs2_rgrp_list
*rlist
,
62 extern void gfs2_rlist_alloc(struct gfs2_rgrp_list
*rlist
, unsigned int state
);
63 extern void gfs2_rlist_free(struct gfs2_rgrp_list
*rlist
);
64 extern u64
gfs2_ri_total(struct gfs2_sbd
*sdp
);
65 extern int gfs2_rgrp_dump(struct seq_file
*seq
, const struct gfs2_glock
*gl
);
66 extern 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
);
69 extern int gfs2_fitrim(struct file
*filp
, void __user
*argp
);
71 #endif /* __RGRP_DOT_H__ */