/*****************************************************************************************************************************************************************  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.**  Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.****  This copyrighted material is made available to anyone wishing to use,**  modify, copy, or redistribute it subject to the terms and conditions**  of the GNU General Public License v.2.***************************************************************************************************************************************************************/ #include "dlm_internal.h"#include "config.h"#include "memory.h" static struct kmem_cache *lkb_cache;  int dlm_memory_init(void){	int ret = 0; 	lkb_cache = kmem_cache_create("dlm_lkb", sizeof(struct dlm_lkb),				__alignof__(struct dlm_lkb), 0, NULL, NULL);	if (!lkb_cache)		ret = -ENOMEM;	return ret;} void dlm_memory_exit(void){	if (lkb_cache)		kmem_cache_destroy(lkb_cache);} char *allocate_lvb(struct dlm_ls *ls){	char *p; 	p = kmalloc(ls->ls_lvblen, GFP_KERNEL);	if (p)		memset(p, 0, ls->ls_lvblen);	return p;} void free_lvb(char *p){	kfree(p);} /* FIXME: have some minimal space built-in to rsb for the name and   kmalloc a separate name if needed, like dentries are done */ struct dlm_rsb *allocate_rsb(struct dlm_ls *ls, int namelen){	struct dlm_rsb *r; 	DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,); 	r = kmalloc(sizeof(*r) + namelen, GFP_KERNEL);	if (r)		memset(r, 0, sizeof(*r) + namelen);	return r;} void free_rsb(struct dlm_rsb *r){	if (r->res_lvbptr)		free_lvb(r->res_lvbptr);	kfree(r);} struct dlm_lkb *allocate_lkb(struct dlm_ls *ls){	struct dlm_lkb *lkb; 	lkb = kmem_cache_zalloc(lkb_cache, GFP_KERNEL);	return lkb;} void free_lkb(struct dlm_lkb *lkb){	if (lkb->lkb_flags & DLM_IFL_USER) {		struct dlm_user_args *ua;		ua = (struct dlm_user_args *)lkb->lkb_astparam;		if (ua) {			if (ua->lksb.sb_lvbptr)				kfree(ua->lksb.sb_lvbptr);			kfree(ua);		}	}	kmem_cache_free(lkb_cache, lkb);} struct dlm_direntry *allocate_direntry(struct dlm_ls *ls, int namelen){	struct dlm_direntry *de; 	DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,		   printk("namelen = %d\n", namelen);); 	de = kmalloc(sizeof(*de) + namelen, GFP_KERNEL);	if (de)		memset(de, 0, sizeof(*de) + namelen);	return de;} void free_direntry(struct dlm_direntry *de){	kfree(de);}