Commit | Line | Data |
---|---|---|
e7fd4179 DT |
1 | /****************************************************************************** |
2 | ******************************************************************************* | |
3 | ** | |
4 | ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
52bda2b5 | 5 | ** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. |
e7fd4179 DT |
6 | ** |
7 | ** This copyrighted material is made available to anyone wishing to use, | |
8 | ** modify, copy, or redistribute it subject to the terms and conditions | |
9 | ** of the GNU General Public License v.2. | |
10 | ** | |
11 | ******************************************************************************* | |
12 | ******************************************************************************/ | |
13 | ||
14 | #include "dlm_internal.h" | |
15 | #include "config.h" | |
16 | #include "memory.h" | |
17 | ||
e18b890b | 18 | static struct kmem_cache *lkb_cache; |
3881ac04 | 19 | static struct kmem_cache *rsb_cache; |
e7fd4179 DT |
20 | |
21 | ||
30727174 | 22 | int __init dlm_memory_init(void) |
e7fd4179 DT |
23 | { |
24 | int ret = 0; | |
25 | ||
26 | lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb), | |
20c2df83 | 27 | __alignof__(struct dlm_lkb), 0, NULL); |
e7fd4179 DT |
28 | if (!lkb_cache) |
29 | ret = -ENOMEM; | |
3881ac04 DT |
30 | |
31 | rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb), | |
32 | __alignof__(struct dlm_rsb), 0, NULL); | |
33 | if (!rsb_cache) { | |
34 | kmem_cache_destroy(lkb_cache); | |
35 | ret = -ENOMEM; | |
36 | } | |
37 | ||
e7fd4179 DT |
38 | return ret; |
39 | } | |
40 | ||
41 | void dlm_memory_exit(void) | |
42 | { | |
43 | if (lkb_cache) | |
44 | kmem_cache_destroy(lkb_cache); | |
3881ac04 DT |
45 | if (rsb_cache) |
46 | kmem_cache_destroy(rsb_cache); | |
e7fd4179 DT |
47 | } |
48 | ||
52bda2b5 | 49 | char *dlm_allocate_lvb(struct dlm_ls *ls) |
e7fd4179 DT |
50 | { |
51 | char *p; | |
52 | ||
573c24c4 | 53 | p = kzalloc(ls->ls_lvblen, GFP_NOFS); |
e7fd4179 DT |
54 | return p; |
55 | } | |
56 | ||
52bda2b5 | 57 | void dlm_free_lvb(char *p) |
e7fd4179 DT |
58 | { |
59 | kfree(p); | |
60 | } | |
61 | ||
3881ac04 | 62 | struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls) |
e7fd4179 DT |
63 | { |
64 | struct dlm_rsb *r; | |
65 | ||
3881ac04 | 66 | r = kmem_cache_zalloc(rsb_cache, GFP_NOFS); |
e7fd4179 DT |
67 | return r; |
68 | } | |
69 | ||
52bda2b5 | 70 | void dlm_free_rsb(struct dlm_rsb *r) |
e7fd4179 DT |
71 | { |
72 | if (r->res_lvbptr) | |
52bda2b5 | 73 | dlm_free_lvb(r->res_lvbptr); |
3881ac04 | 74 | kmem_cache_free(rsb_cache, r); |
e7fd4179 DT |
75 | } |
76 | ||
52bda2b5 | 77 | struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls) |
e7fd4179 DT |
78 | { |
79 | struct dlm_lkb *lkb; | |
80 | ||
573c24c4 | 81 | lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS); |
e7fd4179 DT |
82 | return lkb; |
83 | } | |
84 | ||
52bda2b5 | 85 | void dlm_free_lkb(struct dlm_lkb *lkb) |
e7fd4179 | 86 | { |
597d0cae DT |
87 | if (lkb->lkb_flags & DLM_IFL_USER) { |
88 | struct dlm_user_args *ua; | |
d292c0cc | 89 | ua = lkb->lkb_ua; |
597d0cae DT |
90 | if (ua) { |
91 | if (ua->lksb.sb_lvbptr) | |
92 | kfree(ua->lksb.sb_lvbptr); | |
93 | kfree(ua); | |
94 | } | |
95 | } | |
e7fd4179 DT |
96 | kmem_cache_free(lkb_cache, lkb); |
97 | } | |
98 |