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

 
 1/******************************************************************************
 2*******************************************************************************
 3**
 4**  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
 5**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
 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
18static struct kmem_cache *lkb_cache;
19static struct kmem_cache *rsb_cache;
20
21
22int __init dlm_memory_init(void)
23{
24	lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb),
25				__alignof__(struct dlm_lkb), 0, NULL);
26	if (!lkb_cache)
27		return -ENOMEM;
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);
33		return -ENOMEM;
34	}
35
36	return 0;
37}
38
39void dlm_memory_exit(void)
40{
41	if (lkb_cache)
42		kmem_cache_destroy(lkb_cache);
43	if (rsb_cache)
44		kmem_cache_destroy(rsb_cache);
45}
46
47char *dlm_allocate_lvb(struct dlm_ls *ls)
48{
49	char *p;
50
51	p = kzalloc(ls->ls_lvblen, GFP_NOFS);
52	return p;
53}
54
55void dlm_free_lvb(char *p)
56{
57	kfree(p);
58}
59
60struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls)
61{
62	struct dlm_rsb *r;
63
64	r = kmem_cache_zalloc(rsb_cache, GFP_NOFS);
65	return r;
66}
67
68void dlm_free_rsb(struct dlm_rsb *r)
69{
70	if (r->res_lvbptr)
71		dlm_free_lvb(r->res_lvbptr);
72	kmem_cache_free(rsb_cache, r);
73}
74
75struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
76{
77	struct dlm_lkb *lkb;
78
79	lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS);
80	return lkb;
81}
82
83void dlm_free_lkb(struct dlm_lkb *lkb)
84{
85	if (lkb->lkb_flags & DLM_IFL_USER) {
86		struct dlm_user_args *ua;
87		ua = lkb->lkb_ua;
88		if (ua) {
89			if (ua->lksb.sb_lvbptr)
90				kfree(ua->lksb.sb_lvbptr);
91			kfree(ua);
92		}
93	}
94	kmem_cache_free(lkb_cache, lkb);
95}
96