projects / linux.git / blame
| 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 | 23 | { |
| e7fd4179 | 24 | lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb), |
| 20c2df83 | 25 | __alignof__(struct dlm_lkb), 0, NULL); |
| e7fd4179 | 26 | if (!lkb_cache) |
| 75af271e | 27 | return -ENOMEM; |
| 3881ac04 DT |
28 | |
| 29 | rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb), | |
| 30 | __alignof__(struct dlm_rsb), 0, NULL); | |
| 31 | if (!rsb_cache) { | |
| 32 | kmem_cache_destroy(lkb_cache); | |
| 75af271e | 33 | return -ENOMEM; |
| 3881ac04 DT |
34 | } |
| 35 | ||
| 75af271e | 36 | return 0; |
| e7fd4179 DT |
37 | } |
| 38 | ||
| 39 | void dlm_memory_exit(void) | |
| 40 | { | |
| 41 | if (lkb_cache) | |
| 42 | kmem_cache_destroy(lkb_cache); | |
| 3881ac04 DT |
43 | if (rsb_cache) |
| 44 | kmem_cache_destroy(rsb_cache); | |
| e7fd4179 DT |
45 | } |
| 46 | ||
| 52bda2b5 | 47 | char *dlm_allocate_lvb(struct dlm_ls *ls) |
| e7fd4179 DT |
48 | { |
| 49 | char *p; | |
| 50 | ||
| 573c24c4 | 51 | p = kzalloc(ls->ls_lvblen, GFP_NOFS); |
| e7fd4179 DT |
52 | return p; |
| 53 | } | |
| 54 | ||
| 52bda2b5 | 55 | void dlm_free_lvb(char *p) |
| e7fd4179 DT |
56 | { |
| 57 | kfree(p); | |
| 58 | } | |
| 59 | ||
| 3881ac04 | 60 | struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls) |
| e7fd4179 DT |
61 | { |
| 62 | struct dlm_rsb *r; | |
| 63 | ||
| 3881ac04 | 64 | r = kmem_cache_zalloc(rsb_cache, GFP_NOFS); |
| e7fd4179 DT |
65 | return r; |
| 66 | } | |
| 67 | ||
| 52bda2b5 | 68 | void dlm_free_rsb(struct dlm_rsb *r) |
| e7fd4179 DT |
69 | { |
| 70 | if (r->res_lvbptr) | |
| 52bda2b5 | 71 | dlm_free_lvb(r->res_lvbptr); |
| 3881ac04 | 72 | kmem_cache_free(rsb_cache, r); |
| e7fd4179 DT |
73 | } |
| 74 | ||
| 52bda2b5 | 75 | struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls) |
| e7fd4179 DT |
76 | { |
| 77 | struct dlm_lkb *lkb; | |
| 78 | ||
| 573c24c4 | 79 | lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS); |
| e7fd4179 DT |
80 | return lkb; |
| 81 | } | |
| 82 | ||
| 52bda2b5 | 83 | void dlm_free_lkb(struct dlm_lkb *lkb) |
| e7fd4179 | 84 | { |
| 597d0cae DT |
85 | if (lkb->lkb_flags & DLM_IFL_USER) { |
| 86 | struct dlm_user_args *ua; | |
| d292c0cc | 87 | ua = lkb->lkb_ua; |
| 597d0cae DT |
88 | if (ua) { |
| 89 | if (ua->lksb.sb_lvbptr) | |
| 90 | kfree(ua->lksb.sb_lvbptr); | |
| 91 | kfree(ua); | |
| 92 | } | |
| 93 | } | |
| e7fd4179 DT |
94 | kmem_cache_free(lkb_cache, lkb); |
| 95 | } | |
| 96 |