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2522fe45 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
e7fd4179 DT |
2 | /****************************************************************************** |
3 | ******************************************************************************* | |
4 | ** | |
5 | ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
52bda2b5 | 6 | ** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. |
e7fd4179 | 7 | ** |
e7fd4179 DT |
8 | ** |
9 | ******************************************************************************* | |
10 | ******************************************************************************/ | |
11 | ||
12 | #include "dlm_internal.h" | |
13 | #include "config.h" | |
14 | #include "memory.h" | |
15 | ||
e18b890b | 16 | static struct kmem_cache *lkb_cache; |
3881ac04 | 17 | static struct kmem_cache *rsb_cache; |
e7fd4179 DT |
18 | |
19 | ||
30727174 | 20 | int __init dlm_memory_init(void) |
e7fd4179 | 21 | { |
e7fd4179 | 22 | lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb), |
20c2df83 | 23 | __alignof__(struct dlm_lkb), 0, NULL); |
e7fd4179 | 24 | if (!lkb_cache) |
75af271e | 25 | return -ENOMEM; |
3881ac04 DT |
26 | |
27 | rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb), | |
28 | __alignof__(struct dlm_rsb), 0, NULL); | |
29 | if (!rsb_cache) { | |
30 | kmem_cache_destroy(lkb_cache); | |
75af271e | 31 | return -ENOMEM; |
3881ac04 DT |
32 | } |
33 | ||
75af271e | 34 | return 0; |
e7fd4179 DT |
35 | } |
36 | ||
37 | void dlm_memory_exit(void) | |
38 | { | |
f31a8969 WY |
39 | kmem_cache_destroy(lkb_cache); |
40 | kmem_cache_destroy(rsb_cache); | |
e7fd4179 DT |
41 | } |
42 | ||
52bda2b5 | 43 | char *dlm_allocate_lvb(struct dlm_ls *ls) |
e7fd4179 DT |
44 | { |
45 | char *p; | |
46 | ||
573c24c4 | 47 | p = kzalloc(ls->ls_lvblen, GFP_NOFS); |
e7fd4179 DT |
48 | return p; |
49 | } | |
50 | ||
52bda2b5 | 51 | void dlm_free_lvb(char *p) |
e7fd4179 DT |
52 | { |
53 | kfree(p); | |
54 | } | |
55 | ||
3881ac04 | 56 | struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls) |
e7fd4179 DT |
57 | { |
58 | struct dlm_rsb *r; | |
59 | ||
3881ac04 | 60 | r = kmem_cache_zalloc(rsb_cache, GFP_NOFS); |
e7fd4179 DT |
61 | return r; |
62 | } | |
63 | ||
52bda2b5 | 64 | void dlm_free_rsb(struct dlm_rsb *r) |
e7fd4179 DT |
65 | { |
66 | if (r->res_lvbptr) | |
52bda2b5 | 67 | dlm_free_lvb(r->res_lvbptr); |
3881ac04 | 68 | kmem_cache_free(rsb_cache, r); |
e7fd4179 DT |
69 | } |
70 | ||
52bda2b5 | 71 | struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls) |
e7fd4179 DT |
72 | { |
73 | struct dlm_lkb *lkb; | |
74 | ||
573c24c4 | 75 | lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS); |
e7fd4179 DT |
76 | return lkb; |
77 | } | |
78 | ||
52bda2b5 | 79 | void dlm_free_lkb(struct dlm_lkb *lkb) |
e7fd4179 | 80 | { |
597d0cae DT |
81 | if (lkb->lkb_flags & DLM_IFL_USER) { |
82 | struct dlm_user_args *ua; | |
d292c0cc | 83 | ua = lkb->lkb_ua; |
597d0cae | 84 | if (ua) { |
f31a8969 | 85 | kfree(ua->lksb.sb_lvbptr); |
597d0cae DT |
86 | kfree(ua); |
87 | } | |
88 | } | |
e7fd4179 DT |
89 | kmem_cache_free(lkb_cache, lkb); |
90 | } | |
91 |