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7336d0e6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
b3b94faa DT |
2 | /* |
3 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
fe6c991c | 4 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
5 | */ |
6 | ||
7 | #ifndef __RGRP_DOT_H__ | |
8 | #define __RGRP_DOT_H__ | |
9 | ||
5a0e3ad6 | 10 | #include <linux/slab.h> |
66fc061b | 11 | #include <linux/uaccess.h> |
5a0e3ad6 | 12 | |
8e2e0047 BP |
13 | /* Since each block in the file system is represented by two bits in the |
14 | * bitmap, one 64-bit word in the bitmap will represent 32 blocks. | |
15 | * By reserving 32 blocks at a time, we can optimize / shortcut how we search | |
16 | * through the bitmaps by looking a word at a time. | |
17 | */ | |
ad899458 | 18 | #define RGRP_RSRV_MINBLKS 32 |
1a855033 | 19 | #define RGRP_RSRV_ADDBLKS 64 |
8e2e0047 | 20 | |
f2f7ba52 SW |
21 | struct gfs2_rgrpd; |
22 | struct gfs2_sbd; | |
23 | struct gfs2_holder; | |
24 | ||
09010978 | 25 | extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd); |
b3b94faa | 26 | |
66fc061b | 27 | extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact); |
8339ee54 SW |
28 | extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp); |
29 | extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd); | |
b3b94faa | 30 | |
09010978 | 31 | extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp); |
8339ee54 SW |
32 | extern int gfs2_rindex_update(struct gfs2_sbd *sdp); |
33 | extern void gfs2_free_clones(struct gfs2_rgrpd *rgd); | |
7c9ca621 | 34 | extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh); |
39b0f1e9 | 35 | extern void gfs2_rgrp_brelse(struct gfs2_rgrpd *rgd); |
7c9ca621 | 36 | extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh); |
b3b94faa | 37 | |
8e2e0047 BP |
38 | extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip); |
39 | ||
9dbe9610 | 40 | #define GFS2_AF_ORLOV 1 |
25435e5e AD |
41 | extern int gfs2_inplace_reserve(struct gfs2_inode *ip, |
42 | struct gfs2_alloc_parms *ap); | |
09010978 | 43 | extern void gfs2_inplace_release(struct gfs2_inode *ip); |
b3b94faa | 44 | |
6e87ed0f BP |
45 | extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n, |
46 | bool dinode, u64 *generation); | |
b3b94faa | 47 | |
b54e9a0b | 48 | extern int gfs2_rsqa_alloc(struct gfs2_inode *ip); |
20095218 | 49 | extern void gfs2_rs_deltree(struct gfs2_blkreserv *rs); |
b54e9a0b | 50 | extern void gfs2_rsqa_delete(struct gfs2_inode *ip, atomic_t *wcount); |
0ddeded4 AG |
51 | extern void __gfs2_free_blocks(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd, |
52 | u64 bstart, u32 blen, int meta); | |
53 | extern void gfs2_free_meta(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd, | |
54 | u64 bstart, u32 blen); | |
09010978 SW |
55 | extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); |
56 | extern void gfs2_unlink_di(struct inode *inode); | |
acf7e244 SW |
57 | extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, |
58 | unsigned int type); | |
b3b94faa DT |
59 | |
60 | struct gfs2_rgrp_list { | |
61 | unsigned int rl_rgrps; | |
62 | unsigned int rl_space; | |
63 | struct gfs2_rgrpd **rl_rgd; | |
64 | struct gfs2_holder *rl_ghs; | |
65 | }; | |
66 | ||
70b0c365 | 67 | extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist, |
09010978 | 68 | u64 block); |
c3abc29e | 69 | extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist); |
09010978 SW |
70 | extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist); |
71 | extern u64 gfs2_ri_total(struct gfs2_sbd *sdp); | |
27a2660f | 72 | extern void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_glock *gl); |
66fc061b SW |
73 | extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset, |
74 | struct buffer_head *bh, | |
75 | const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed); | |
76 | extern int gfs2_fitrim(struct file *filp, void __user *argp); | |
b3b94faa | 77 | |
4a993fb1 | 78 | /* This is how to tell if a reservation is in the rgrp tree: */ |
a097dc7e | 79 | static inline bool gfs2_rs_active(const struct gfs2_blkreserv *rs) |
8e2e0047 | 80 | { |
4a993fb1 | 81 | return rs && !RB_EMPTY_NODE(&rs->rs_node); |
8e2e0047 BP |
82 | } |
83 | ||
d552a2b9 BP |
84 | static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block) |
85 | { | |
86 | u64 first = rgd->rd_data0; | |
87 | u64 last = first + rgd->rd_data; | |
88 | return first <= block && block < last; | |
89 | } | |
90 | ||
00a158be | 91 | extern void check_and_update_goal(struct gfs2_inode *ip); |
b3b94faa | 92 | #endif /* __RGRP_DOT_H__ */ |