forked from Minki/linux
c376222960
Replace appropriate pairs of "kmem_cache_alloc()" + "memset(0)" with the corresponding "kmem_cache_zalloc()" call. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Roland McGrath <roland@redhat.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Acked-by: Joel Becker <Joel.Becker@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: James Morris <jmorris@namei.org> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
115 lines
2.4 KiB
C
115 lines
2.4 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 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);
|
|
}
|
|
|