2005-04-16 15:20:36 -07:00
|
|
|
/*
|
|
|
|
* JFFS2 -- Journalling Flash File System, Version 2.
|
|
|
|
*
|
|
|
|
* Copyright (C) 2001-2003 Red Hat, Inc.
|
|
|
|
*
|
|
|
|
* Created by David Woodhouse <dwmw2@infradead.org>
|
|
|
|
*
|
|
|
|
* For licensing information, see the file 'LICENCE' in this directory.
|
|
|
|
*
|
2005-11-07 04:16:07 -07:00
|
|
|
* $Id: malloc.c,v 1.31 2005/11/07 11:14:40 gleixner Exp $
|
2005-04-16 15:20:36 -07:00
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/jffs2.h>
|
|
|
|
#include "nodelist.h"
|
|
|
|
|
|
|
|
/* These are initialised to NULL in the kernel startup code.
|
|
|
|
If you're porting to other operating systems, beware */
|
|
|
|
static kmem_cache_t *full_dnode_slab;
|
|
|
|
static kmem_cache_t *raw_dirent_slab;
|
|
|
|
static kmem_cache_t *raw_inode_slab;
|
|
|
|
static kmem_cache_t *tmp_dnode_info_slab;
|
|
|
|
static kmem_cache_t *raw_node_ref_slab;
|
|
|
|
static kmem_cache_t *node_frag_slab;
|
|
|
|
static kmem_cache_t *inode_cache_slab;
|
|
|
|
|
|
|
|
int __init jffs2_create_slab_caches(void)
|
|
|
|
{
|
2005-11-07 04:16:07 -07:00
|
|
|
full_dnode_slab = kmem_cache_create("jffs2_full_dnode",
|
2005-04-16 15:20:36 -07:00
|
|
|
sizeof(struct jffs2_full_dnode),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!full_dnode_slab)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent",
|
|
|
|
sizeof(struct jffs2_raw_dirent),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!raw_dirent_slab)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
raw_inode_slab = kmem_cache_create("jffs2_raw_inode",
|
|
|
|
sizeof(struct jffs2_raw_inode),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!raw_inode_slab)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode",
|
|
|
|
sizeof(struct jffs2_tmp_dnode_info),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!tmp_dnode_info_slab)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
raw_node_ref_slab = kmem_cache_create("jffs2_raw_node_ref",
|
|
|
|
sizeof(struct jffs2_raw_node_ref),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!raw_node_ref_slab)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
node_frag_slab = kmem_cache_create("jffs2_node_frag",
|
|
|
|
sizeof(struct jffs2_node_frag),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!node_frag_slab)
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
inode_cache_slab = kmem_cache_create("jffs2_inode_cache",
|
|
|
|
sizeof(struct jffs2_inode_cache),
|
2005-07-27 07:16:57 -07:00
|
|
|
0, 0, NULL, NULL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (inode_cache_slab)
|
|
|
|
return 0;
|
|
|
|
err:
|
|
|
|
jffs2_destroy_slab_caches();
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_destroy_slab_caches(void)
|
|
|
|
{
|
|
|
|
if(full_dnode_slab)
|
|
|
|
kmem_cache_destroy(full_dnode_slab);
|
|
|
|
if(raw_dirent_slab)
|
|
|
|
kmem_cache_destroy(raw_dirent_slab);
|
|
|
|
if(raw_inode_slab)
|
|
|
|
kmem_cache_destroy(raw_inode_slab);
|
|
|
|
if(tmp_dnode_info_slab)
|
|
|
|
kmem_cache_destroy(tmp_dnode_info_slab);
|
|
|
|
if(raw_node_ref_slab)
|
|
|
|
kmem_cache_destroy(raw_node_ref_slab);
|
|
|
|
if(node_frag_slab)
|
|
|
|
kmem_cache_destroy(node_frag_slab);
|
|
|
|
if(inode_cache_slab)
|
|
|
|
kmem_cache_destroy(inode_cache_slab);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_full_dirent *ret;
|
|
|
|
ret = kmalloc(sizeof(struct jffs2_full_dirent) + namesize, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-07-27 07:16:57 -07:00
|
|
|
return ret;
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kfree(x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_full_dnode *ret;
|
|
|
|
ret = kmem_cache_alloc(full_dnode_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(full_dnode_slab, x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_raw_dirent *ret;
|
|
|
|
ret = kmem_cache_alloc(raw_dirent_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(raw_dirent_slab, x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_raw_inode *ret;
|
|
|
|
ret = kmem_cache_alloc(raw_inode_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(raw_inode_slab, x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_tmp_dnode_info *ret;
|
|
|
|
ret = kmem_cache_alloc(tmp_dnode_info_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n",
|
2005-07-27 07:16:57 -07:00
|
|
|
ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(tmp_dnode_info_slab, x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_raw_node_ref *ret;
|
|
|
|
ret = kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(raw_node_ref_slab, x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_node_frag *jffs2_alloc_node_frag(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_node_frag *ret;
|
|
|
|
ret = kmem_cache_alloc(node_frag_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_node_frag(struct jffs2_node_frag *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(node_frag_slab, x);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
|
|
|
|
{
|
2005-07-27 07:16:57 -07:00
|
|
|
struct jffs2_inode_cache *ret;
|
|
|
|
ret = kmem_cache_alloc(inode_cache_slab, GFP_KERNEL);
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", ret);
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
|
|
|
|
{
|
2005-09-22 04:25:00 -07:00
|
|
|
dbg_memalloc("%p\n", x);
|
2005-04-16 15:20:36 -07:00
|
|
|
kmem_cache_free(inode_cache_slab, x);
|
|
|
|
}
|