1 /******************************************************************************
2 *******************************************************************************
4 ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
5 ** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
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.
11 *******************************************************************************
12 ******************************************************************************/
14 #include "dlm_internal.h"
18 static kmem_cache_t *lkb_cache;
21 int dlm_memory_init(void)
25 lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb),
26 __alignof__(struct dlm_lkb), 0, NULL, NULL);
32 void dlm_memory_exit(void)
35 kmem_cache_destroy(lkb_cache);
38 char *allocate_lvb(struct dlm_ls *ls)
42 p = kmalloc(ls->ls_lvblen, GFP_KERNEL);
44 memset(p, 0, ls->ls_lvblen);
48 void free_lvb(char *p)
53 /* FIXME: have some minimal space built-in to rsb for the name and
54 kmalloc a separate name if needed, like dentries are done */
56 struct dlm_rsb *allocate_rsb(struct dlm_ls *ls, int namelen)
60 DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,);
62 r = kmalloc(sizeof(*r) + namelen, GFP_KERNEL);
64 memset(r, 0, sizeof(*r) + namelen);
68 void free_rsb(struct dlm_rsb *r)
71 free_lvb(r->res_lvbptr);
75 struct dlm_lkb *allocate_lkb(struct dlm_ls *ls)
79 lkb = kmem_cache_alloc(lkb_cache, GFP_KERNEL);
81 memset(lkb, 0, sizeof(*lkb));
85 void free_lkb(struct dlm_lkb *lkb)
87 if (lkb->lkb_flags & DLM_IFL_USER) {
88 struct dlm_user_args *ua;
89 ua = (struct dlm_user_args *)lkb->lkb_astparam;
91 if (ua->lksb.sb_lvbptr)
92 kfree(ua->lksb.sb_lvbptr);
96 kmem_cache_free(lkb_cache, lkb);
99 struct dlm_direntry *allocate_direntry(struct dlm_ls *ls, int namelen)
101 struct dlm_direntry *de;
103 DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,
104 printk("namelen = %d\n", namelen););
106 de = kmalloc(sizeof(*de) + namelen, GFP_KERNEL);
108 memset(de, 0, sizeof(*de) + namelen);
112 void free_direntry(struct dlm_direntry *de)