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	int ret = 0;
25
26	lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb),
27				__alignof__(struct dlm_lkb), 0, NULL);
28	if (!lkb_cache)
29		ret = -ENOMEM;
30
31	rsb_cache = kmem_cache_create("dlm_rsb", sizeof(struct dlm_rsb),
32				__alignof__(struct dlm_rsb), 0, NULL);
33	if (!rsb_cache) {
34		kmem_cache_destroy(lkb_cache);
35		ret = -ENOMEM;
36	}
37
38	return ret;
39}
40
41void dlm_memory_exit(void)
42{
43	if (lkb_cache)
44		kmem_cache_destroy(lkb_cache);
45	if (rsb_cache)
46		kmem_cache_destroy(rsb_cache);
47}
48
49char *dlm_allocate_lvb(struct dlm_ls *ls)
50{
51	char *p;
52
53	p = kzalloc(ls->ls_lvblen, GFP_NOFS);
54	return p;
55}
56
57void dlm_free_lvb(char *p)
58{
59	kfree(p);
60}
61
62struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls)
63{
64	struct dlm_rsb *r;
65
66	r = kmem_cache_zalloc(rsb_cache, GFP_NOFS);
67	return r;
68}
69
70void dlm_free_rsb(struct dlm_rsb *r)
71{
72	if (r->res_lvbptr)
73		dlm_free_lvb(r->res_lvbptr);
74	kmem_cache_free(rsb_cache, r);
75}
76
77struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
78{
79	struct dlm_lkb *lkb;
80
81	lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS);
82	return lkb;
83}
84
85void dlm_free_lkb(struct dlm_lkb *lkb)
86{
87	if (lkb->lkb_flags & DLM_IFL_USER) {
88		struct dlm_user_args *ua;
89		ua = lkb->lkb_ua;
90		if (ua) {
91			if (ua->lksb.sb_lvbptr)
92				kfree(ua->lksb.sb_lvbptr);
93			kfree(ua);
94		}
95	}
96	kmem_cache_free(lkb_cache, lkb);
97}
98

 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