1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /******************************************************************************
3*4882a593Smuzhiyun *******************************************************************************
4*4882a593Smuzhiyun **
5*4882a593Smuzhiyun ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
6*4882a593Smuzhiyun ** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
7*4882a593Smuzhiyun **
8*4882a593Smuzhiyun **
9*4882a593Smuzhiyun *******************************************************************************
10*4882a593Smuzhiyun ******************************************************************************/
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include "dlm_internal.h"
13*4882a593Smuzhiyun #include "config.h"
14*4882a593Smuzhiyun #include "memory.h"
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun static struct kmem_cache *lkb_cache;
17*4882a593Smuzhiyun static struct kmem_cache *rsb_cache;
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun
dlm_memory_init(void)20*4882a593Smuzhiyun int __init dlm_memory_init(void)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb),
23*4882a593Smuzhiyun __alignof__(struct dlm_lkb), 0, NULL);
24*4882a593Smuzhiyun if (!lkb_cache)
25*4882a593Smuzhiyun return -ENOMEM;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb),
28*4882a593Smuzhiyun __alignof__(struct dlm_rsb), 0, NULL);
29*4882a593Smuzhiyun if (!rsb_cache) {
30*4882a593Smuzhiyun kmem_cache_destroy(lkb_cache);
31*4882a593Smuzhiyun return -ENOMEM;
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun return 0;
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
dlm_memory_exit(void)37*4882a593Smuzhiyun void dlm_memory_exit(void)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun kmem_cache_destroy(lkb_cache);
40*4882a593Smuzhiyun kmem_cache_destroy(rsb_cache);
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
dlm_allocate_lvb(struct dlm_ls * ls)43*4882a593Smuzhiyun char *dlm_allocate_lvb(struct dlm_ls *ls)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun char *p;
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun p = kzalloc(ls->ls_lvblen, GFP_NOFS);
48*4882a593Smuzhiyun return p;
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
dlm_free_lvb(char * p)51*4882a593Smuzhiyun void dlm_free_lvb(char *p)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun kfree(p);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
dlm_allocate_rsb(struct dlm_ls * ls)56*4882a593Smuzhiyun struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls)
57*4882a593Smuzhiyun {
58*4882a593Smuzhiyun struct dlm_rsb *r;
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun r = kmem_cache_zalloc(rsb_cache, GFP_NOFS);
61*4882a593Smuzhiyun return r;
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
dlm_free_rsb(struct dlm_rsb * r)64*4882a593Smuzhiyun void dlm_free_rsb(struct dlm_rsb *r)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun if (r->res_lvbptr)
67*4882a593Smuzhiyun dlm_free_lvb(r->res_lvbptr);
68*4882a593Smuzhiyun kmem_cache_free(rsb_cache, r);
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun
dlm_allocate_lkb(struct dlm_ls * ls)71*4882a593Smuzhiyun struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
72*4882a593Smuzhiyun {
73*4882a593Smuzhiyun struct dlm_lkb *lkb;
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS);
76*4882a593Smuzhiyun return lkb;
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun
dlm_free_lkb(struct dlm_lkb * lkb)79*4882a593Smuzhiyun void dlm_free_lkb(struct dlm_lkb *lkb)
80*4882a593Smuzhiyun {
81*4882a593Smuzhiyun if (lkb->lkb_flags & DLM_IFL_USER) {
82*4882a593Smuzhiyun struct dlm_user_args *ua;
83*4882a593Smuzhiyun ua = lkb->lkb_ua;
84*4882a593Smuzhiyun if (ua) {
85*4882a593Smuzhiyun kfree(ua->lksb.sb_lvbptr);
86*4882a593Smuzhiyun kfree(ua);
87*4882a593Smuzhiyun }
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun kmem_cache_free(lkb_cache, lkb);
90*4882a593Smuzhiyun }
91*4882a593Smuzhiyun
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