3bcd3687f8
This patch removes support for range locking from the DLM Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
/******************************************************************************
|
|
*******************************************************************************
|
|
**
|
|
** 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 kmem_cache_t *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_alloc(lkb_cache, GFP_KERNEL);
|
|
if (lkb)
|
|
memset(lkb, 0, sizeof(*lkb));
|
|
return lkb;
|
|
}
|
|
|
|
void free_lkb(struct dlm_lkb *lkb)
|
|
{
|
|
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,);
|
|
|
|
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);
|
|
}
|
|
|