[net-next-2.6.git] / fs / jffs2 / malloc.c

/*
 * JFFS2 -- Journalling Flash File System, Version 2.
 *
 * Copyright © 2001-2007 Red Hat, Inc.
 *
 * Created by David Woodhouse <dwmw2@infradead.org>
 *
 * For licensing information, see the file 'LICENCE' in this directory.
 *
 */

#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 struct kmem_cache *full_dnode_slab;
static struct kmem_cache *raw_dirent_slab;
static struct kmem_cache *raw_inode_slab;
static struct kmem_cache *tmp_dnode_info_slab;
static struct kmem_cache *raw_node_ref_slab;
static struct kmem_cache *node_frag_slab;
static struct kmem_cache *inode_cache_slab;
#ifdef CONFIG_JFFS2_FS_XATTR
static struct kmem_cache *xattr_datum_cache;
static struct kmem_cache *xattr_ref_cache;
#endif

int __init jffs2_create_slab_caches(void)
{
	full_dnode_slab = kmem_cache_create("jffs2_full_dnode",
					    sizeof(struct jffs2_full_dnode),
					    0, 0, NULL);
	if (!full_dnode_slab)
		goto err;

	raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent",
					    sizeof(struct jffs2_raw_dirent),
					    0, SLAB_HWCACHE_ALIGN, NULL);
	if (!raw_dirent_slab)
		goto err;

	raw_inode_slab = kmem_cache_create("jffs2_raw_inode",
					   sizeof(struct jffs2_raw_inode),
					   0, SLAB_HWCACHE_ALIGN, NULL);
	if (!raw_inode_slab)
		goto err;

	tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode",
						sizeof(struct jffs2_tmp_dnode_info),
						0, 0, NULL);
	if (!tmp_dnode_info_slab)
		goto err;

	raw_node_ref_slab = kmem_cache_create("jffs2_refblock",
					      sizeof(struct jffs2_raw_node_ref) * (REFS_PER_BLOCK + 1),
					      0, 0, NULL);
	if (!raw_node_ref_slab)
		goto err;

	node_frag_slab = kmem_cache_create("jffs2_node_frag",
					   sizeof(struct jffs2_node_frag),
					   0, 0, NULL);
	if (!node_frag_slab)
		goto err;

	inode_cache_slab = kmem_cache_create("jffs2_inode_cache",
					     sizeof(struct jffs2_inode_cache),
					     0, 0, NULL);
	if (!inode_cache_slab)
		goto err;

#ifdef CONFIG_JFFS2_FS_XATTR
	xattr_datum_cache = kmem_cache_create("jffs2_xattr_datum",
					     sizeof(struct jffs2_xattr_datum),
					     0, 0, NULL);
	if (!xattr_datum_cache)
		goto err;

	xattr_ref_cache = kmem_cache_create("jffs2_xattr_ref",
					   sizeof(struct jffs2_xattr_ref),
					   0, 0, NULL);
	if (!xattr_ref_cache)
		goto err;
#endif

	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);
#ifdef CONFIG_JFFS2_FS_XATTR
	if (xattr_datum_cache)
		kmem_cache_destroy(xattr_datum_cache);
	if (xattr_ref_cache)
		kmem_cache_destroy(xattr_ref_cache);
#endif
}

struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
{
	struct jffs2_full_dirent *ret;
	ret = kmalloc(sizeof(struct jffs2_full_dirent) + namesize, GFP_KERNEL);
	dbg_memalloc("%p\n", ret);
	return ret;
}

void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
{
	dbg_memalloc("%p\n", x);
	kfree(x);
}

struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
{
	struct jffs2_full_dnode *ret;
	ret = kmem_cache_alloc(full_dnode_slab, GFP_KERNEL);
	dbg_memalloc("%p\n", ret);
	return ret;
}

void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(full_dnode_slab, x);
}

struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
{
	struct jffs2_raw_dirent *ret;
	ret = kmem_cache_alloc(raw_dirent_slab, GFP_KERNEL);
	dbg_memalloc("%p\n", ret);
	return ret;
}

void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(raw_dirent_slab, x);
}

struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
{
	struct jffs2_raw_inode *ret;
	ret = kmem_cache_alloc(raw_inode_slab, GFP_KERNEL);
	dbg_memalloc("%p\n", ret);
	return ret;
}

void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(raw_inode_slab, x);
}

struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
{
	struct jffs2_tmp_dnode_info *ret;
	ret = kmem_cache_alloc(tmp_dnode_info_slab, GFP_KERNEL);
	dbg_memalloc("%p\n",
		ret);
	return ret;
}

void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(tmp_dnode_info_slab, x);
}

static struct jffs2_raw_node_ref *jffs2_alloc_refblock(void)
{
	struct jffs2_raw_node_ref *ret;

	ret = kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
	if (ret) {
		int i = 0;
		for (i=0; i < REFS_PER_BLOCK; i++) {
			ret[i].flash_offset = REF_EMPTY_NODE;
			ret[i].next_in_ino = NULL;
		}
		ret[i].flash_offset = REF_LINK_NODE;
		ret[i].next_in_ino = NULL;
	}
	return ret;
}

int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c,
				 struct jffs2_eraseblock *jeb, int nr)
{
	struct jffs2_raw_node_ref **p, *ref;
	int i = nr;

	dbg_memalloc("%d\n", nr);

	p = &jeb->last_node;
	ref = *p;

	dbg_memalloc("Reserving %d refs for block @0x%08x\n", nr, jeb->offset);

	/* If jeb->last_node is really a valid node then skip over it */
	if (ref && ref->flash_offset != REF_EMPTY_NODE)
		ref++;

	while (i) {
		if (!ref) {
			dbg_memalloc("Allocating new refblock linked from %p\n", p);
			ref = *p = jffs2_alloc_refblock();
			if (!ref)
				return -ENOMEM;
		}
		if (ref->flash_offset == REF_LINK_NODE) {
			p = &ref->next_in_ino;
			ref = *p;
			continue;
		}
		i--;
		ref++;
	}
	jeb->allocated_refs = nr;

	dbg_memalloc("Reserved %d refs for block @0x%08x, last_node is %p (%08x,%p)\n",
		  nr, jeb->offset, jeb->last_node, jeb->last_node->flash_offset,
		  jeb->last_node->next_in_ino);

	return 0;
}

void jffs2_free_refblock(struct jffs2_raw_node_ref *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(raw_node_ref_slab, x);
}

struct jffs2_node_frag *jffs2_alloc_node_frag(void)
{
	struct jffs2_node_frag *ret;
	ret = kmem_cache_alloc(node_frag_slab, GFP_KERNEL);
	dbg_memalloc("%p\n", ret);
	return ret;
}

void jffs2_free_node_frag(struct jffs2_node_frag *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(node_frag_slab, x);
}

struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
{
	struct jffs2_inode_cache *ret;
	ret = kmem_cache_alloc(inode_cache_slab, GFP_KERNEL);
	dbg_memalloc("%p\n", ret);
	return ret;
}

void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
{
	dbg_memalloc("%p\n", x);
	kmem_cache_free(inode_cache_slab, x);
}

#ifdef CONFIG_JFFS2_FS_XATTR
struct jffs2_xattr_datum *jffs2_alloc_xattr_datum(void)
{
	struct jffs2_xattr_datum *xd;
	xd = kmem_cache_zalloc(xattr_datum_cache, GFP_KERNEL);
	dbg_memalloc("%p\n", xd);

	xd->class = RAWNODE_CLASS_XATTR_DATUM;
	xd->node = (void *)xd;
	INIT_LIST_HEAD(&xd->xindex);
	return xd;
}

void jffs2_free_xattr_datum(struct jffs2_xattr_datum *xd)
{
	dbg_memalloc("%p\n", xd);
	kmem_cache_free(xattr_datum_cache, xd);
}

struct jffs2_xattr_ref *jffs2_alloc_xattr_ref(void)
{
	struct jffs2_xattr_ref *ref;
	ref = kmem_cache_zalloc(xattr_ref_cache, GFP_KERNEL);
	dbg_memalloc("%p\n", ref);

	ref->class = RAWNODE_CLASS_XATTR_REF;
	ref->node = (void *)ref;
	return ref;
}

void jffs2_free_xattr_ref(struct jffs2_xattr_ref *ref)
{
	dbg_memalloc("%p\n", ref);
	kmem_cache_free(xattr_ref_cache, ref);
}
#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* JFFS2 -- Journalling Flash File System, Version 2.
	3	*
c00c310e	4	* Copyright © 2001-2007 Red Hat, Inc.
1da177e4 LT	5	*
	6	* Created by David Woodhouse <dwmw2@infradead.org>
	7	*
	8	* For licensing information, see the file 'LICENCE' in this directory.
	9	*
1da177e4 LT	10	*/
	11
	12	#include <linux/kernel.h>
	13	#include <linux/slab.h>
	14	#include <linux/init.h>
	15	#include <linux/jffs2.h>
	16	#include "nodelist.h"
	17
1da177e4 LT	18	/* These are initialised to NULL in the kernel startup code.
1da177e4 LT	19	If you're porting to other operating systems, beware */
e18b890b CL	20	static struct kmem_cache *full_dnode_slab;
	21	static struct kmem_cache *raw_dirent_slab;
	22	static struct kmem_cache *raw_inode_slab;
	23	static struct kmem_cache *tmp_dnode_info_slab;
	24	static struct kmem_cache *raw_node_ref_slab;
	25	static struct kmem_cache *node_frag_slab;
	26	static struct kmem_cache *inode_cache_slab;
aa98d7cf	27	#ifdef CONFIG_JFFS2_FS_XATTR
e18b890b CL	28	static struct kmem_cache *xattr_datum_cache;
e18b890b CL	29	static struct kmem_cache *xattr_ref_cache;
aa98d7cf	30	#endif
1da177e4 LT	31
	32	int __init jffs2_create_slab_caches(void)
	33	{
182ec4ee	34	full_dnode_slab = kmem_cache_create("jffs2_full_dnode",
1da177e4	35	sizeof(struct jffs2_full_dnode),
20c2df83	36	0, 0, NULL);
1da177e4 LT	37	if (!full_dnode_slab)
	38	goto err;
	39
	40	raw_dirent_slab = kmem_cache_create("jffs2_raw_dirent",
	41	sizeof(struct jffs2_raw_dirent),
dd799983	42	0, SLAB_HWCACHE_ALIGN, NULL);
1da177e4 LT	43	if (!raw_dirent_slab)
	44	goto err;
	45
	46	raw_inode_slab = kmem_cache_create("jffs2_raw_inode",
	47	sizeof(struct jffs2_raw_inode),
dd799983	48	0, SLAB_HWCACHE_ALIGN, NULL);
1da177e4 LT	49	if (!raw_inode_slab)
	50	goto err;
	51
	52	tmp_dnode_info_slab = kmem_cache_create("jffs2_tmp_dnode",
	53	sizeof(struct jffs2_tmp_dnode_info),
20c2df83	54	0, 0, NULL);
1da177e4 LT	55	if (!tmp_dnode_info_slab)
	56	goto err;
	57
9bfeb691 DW	58	raw_node_ref_slab = kmem_cache_create("jffs2_refblock",
9bfeb691 DW	59	sizeof(struct jffs2_raw_node_ref) * (REFS_PER_BLOCK + 1),
20c2df83	60	0, 0, NULL);
1da177e4 LT	61	if (!raw_node_ref_slab)
	62	goto err;
	63
	64	node_frag_slab = kmem_cache_create("jffs2_node_frag",
	65	sizeof(struct jffs2_node_frag),
20c2df83	66	0, 0, NULL);
1da177e4 LT	67	if (!node_frag_slab)
	68	goto err;
	69
	70	inode_cache_slab = kmem_cache_create("jffs2_inode_cache",
	71	sizeof(struct jffs2_inode_cache),
20c2df83	72	0, 0, NULL);
aa98d7cf KK	73	if (!inode_cache_slab)
	74	goto err;
	75
	76	#ifdef CONFIG_JFFS2_FS_XATTR
	77	xattr_datum_cache = kmem_cache_create("jffs2_xattr_datum",
	78	sizeof(struct jffs2_xattr_datum),
20c2df83	79	0, 0, NULL);
aa98d7cf KK	80	if (!xattr_datum_cache)
	81	goto err;
	82
	83	xattr_ref_cache = kmem_cache_create("jffs2_xattr_ref",
	84	sizeof(struct jffs2_xattr_ref),
20c2df83	85	0, 0, NULL);
aa98d7cf KK	86	if (!xattr_ref_cache)
	87	goto err;
	88	#endif
	89
	90	return 0;
1da177e4 LT	91	err:
	92	jffs2_destroy_slab_caches();
	93	return -ENOMEM;
	94	}
	95
	96	void jffs2_destroy_slab_caches(void)
	97	{
	98	if(full_dnode_slab)
	99	kmem_cache_destroy(full_dnode_slab);
	100	if(raw_dirent_slab)
	101	kmem_cache_destroy(raw_dirent_slab);
	102	if(raw_inode_slab)
	103	kmem_cache_destroy(raw_inode_slab);
	104	if(tmp_dnode_info_slab)
	105	kmem_cache_destroy(tmp_dnode_info_slab);
	106	if(raw_node_ref_slab)
	107	kmem_cache_destroy(raw_node_ref_slab);
	108	if(node_frag_slab)
	109	kmem_cache_destroy(node_frag_slab);
	110	if(inode_cache_slab)
	111	kmem_cache_destroy(inode_cache_slab);
aa98d7cf KK	112	#ifdef CONFIG_JFFS2_FS_XATTR
	113	if (xattr_datum_cache)
	114	kmem_cache_destroy(xattr_datum_cache);
	115	if (xattr_ref_cache)
	116	kmem_cache_destroy(xattr_ref_cache);
	117	#endif
1da177e4 LT	118	}
	119
	120	struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
	121	{
f538c96b AB	122	struct jffs2_full_dirent *ret;
f538c96b AB	123	ret = kmalloc(sizeof(struct jffs2_full_dirent) + namesize, GFP_KERNEL);
733802d9	124	dbg_memalloc("%p\n", ret);
f538c96b	125	return ret;
1da177e4 LT	126	}
	127
	128	void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
	129	{
733802d9	130	dbg_memalloc("%p\n", x);
1da177e4 LT	131	kfree(x);
	132	}
	133
	134	struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
	135	{
f538c96b AB	136	struct jffs2_full_dnode *ret;
f538c96b AB	137	ret = kmem_cache_alloc(full_dnode_slab, GFP_KERNEL);
733802d9	138	dbg_memalloc("%p\n", ret);
1da177e4 LT	139	return ret;
	140	}
	141
	142	void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
	143	{
733802d9	144	dbg_memalloc("%p\n", x);
1da177e4 LT	145	kmem_cache_free(full_dnode_slab, x);
	146	}
	147
	148	struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
	149	{
f538c96b AB	150	struct jffs2_raw_dirent *ret;
f538c96b AB	151	ret = kmem_cache_alloc(raw_dirent_slab, GFP_KERNEL);
733802d9	152	dbg_memalloc("%p\n", ret);
1da177e4 LT	153	return ret;
	154	}
	155
	156	void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
	157	{
733802d9	158	dbg_memalloc("%p\n", x);
1da177e4 LT	159	kmem_cache_free(raw_dirent_slab, x);
	160	}
	161
	162	struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
	163	{
f538c96b AB	164	struct jffs2_raw_inode *ret;
f538c96b AB	165	ret = kmem_cache_alloc(raw_inode_slab, GFP_KERNEL);
733802d9	166	dbg_memalloc("%p\n", ret);
1da177e4 LT	167	return ret;
	168	}
	169
	170	void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
	171	{
733802d9	172	dbg_memalloc("%p\n", x);
1da177e4 LT	173	kmem_cache_free(raw_inode_slab, x);
	174	}
	175
	176	struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
	177	{
f538c96b AB	178	struct jffs2_tmp_dnode_info *ret;
f538c96b AB	179	ret = kmem_cache_alloc(tmp_dnode_info_slab, GFP_KERNEL);
733802d9	180	dbg_memalloc("%p\n",
f538c96b	181	ret);
1da177e4 LT	182	return ret;
	183	}
	184
	185	void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
	186	{
733802d9	187	dbg_memalloc("%p\n", x);
1da177e4 LT	188	kmem_cache_free(tmp_dnode_info_slab, x);
	189	}
	190
c05d52c7	191	static struct jffs2_raw_node_ref *jffs2_alloc_refblock(void)
9bfeb691 DW	192	{
	193	struct jffs2_raw_node_ref *ret;
	194
	195	ret = kmem_cache_alloc(raw_node_ref_slab, GFP_KERNEL);
	196	if (ret) {
	197	int i = 0;
	198	for (i=0; i < REFS_PER_BLOCK; i++) {
	199	ret[i].flash_offset = REF_EMPTY_NODE;
	200	ret[i].next_in_ino = NULL;
	201	}
	202	ret[i].flash_offset = REF_LINK_NODE;
	203	ret[i].next_in_ino = NULL;
	204	}
	205	return ret;
	206	}
	207
046b8b98 DW	208	int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c,
046b8b98 DW	209	struct jffs2_eraseblock *jeb, int nr)
2f785402	210	{
9bfeb691 DW	211	struct jffs2_raw_node_ref *p, ref;
9bfeb691 DW	212	int i = nr;
2f785402 DW	213
	214	dbg_memalloc("%d\n", nr);
	215
9bfeb691 DW	216	p = &jeb->last_node;
	217	ref = *p;
	218
	219	dbg_memalloc("Reserving %d refs for block @0x%08x\n", nr, jeb->offset);
	220
	221	/* If jeb->last_node is really a valid node then skip over it */
	222	if (ref && ref->flash_offset != REF_EMPTY_NODE)
	223	ref++;
	224
	225	while (i) {
	226	if (!ref) {
	227	dbg_memalloc("Allocating new refblock linked from %p\n", p);
	228	ref = *p = jffs2_alloc_refblock();
	229	if (!ref)
	230	return -ENOMEM;
	231	}
	232	if (ref->flash_offset == REF_LINK_NODE) {
	233	p = &ref->next_in_ino;
	234	ref = *p;
	235	continue;
	236	}
	237	i--;
	238	ref++;
2f785402	239	}
9bfeb691	240	jeb->allocated_refs = nr;
2f785402	241
9bfeb691 DW	242	dbg_memalloc("Reserved %d refs for block @0x%08x, last_node is %p (%08x,%p)\n",
	243	nr, jeb->offset, jeb->last_node, jeb->last_node->flash_offset,
	244	jeb->last_node->next_in_ino);
	245
	246	return 0;
1da177e4 LT	247	}
1da177e4 LT	248
9bfeb691	249	void jffs2_free_refblock(struct jffs2_raw_node_ref *x)
1da177e4	250	{
733802d9	251	dbg_memalloc("%p\n", x);
1da177e4 LT	252	kmem_cache_free(raw_node_ref_slab, x);
	253	}
	254
	255	struct jffs2_node_frag *jffs2_alloc_node_frag(void)
	256	{
f538c96b AB	257	struct jffs2_node_frag *ret;
f538c96b AB	258	ret = kmem_cache_alloc(node_frag_slab, GFP_KERNEL);
733802d9	259	dbg_memalloc("%p\n", ret);
1da177e4 LT	260	return ret;
	261	}
	262
	263	void jffs2_free_node_frag(struct jffs2_node_frag *x)
	264	{
733802d9	265	dbg_memalloc("%p\n", x);
1da177e4 LT	266	kmem_cache_free(node_frag_slab, x);
	267	}
	268
	269	struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
	270	{
f538c96b AB	271	struct jffs2_inode_cache *ret;
f538c96b AB	272	ret = kmem_cache_alloc(inode_cache_slab, GFP_KERNEL);
733802d9	273	dbg_memalloc("%p\n", ret);
1da177e4 LT	274	return ret;
	275	}
	276
	277	void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
	278	{
733802d9	279	dbg_memalloc("%p\n", x);
1da177e4 LT	280	kmem_cache_free(inode_cache_slab, x);
1da177e4 LT	281	}
aa98d7cf KK	282
	283	#ifdef CONFIG_JFFS2_FS_XATTR
	284	struct jffs2_xattr_datum *jffs2_alloc_xattr_datum(void)
	285	{
	286	struct jffs2_xattr_datum *xd;
c6d59cdd	287	xd = kmem_cache_zalloc(xattr_datum_cache, GFP_KERNEL);
aa98d7cf KK	288	dbg_memalloc("%p\n", xd);
aa98d7cf KK	289
aa98d7cf	290	xd->class = RAWNODE_CLASS_XATTR_DATUM;
c9f700f8	291	xd->node = (void *)xd;
aa98d7cf KK	292	INIT_LIST_HEAD(&xd->xindex);
	293	return xd;
	294	}
	295
	296	void jffs2_free_xattr_datum(struct jffs2_xattr_datum *xd)
	297	{
	298	dbg_memalloc("%p\n", xd);
	299	kmem_cache_free(xattr_datum_cache, xd);
	300	}
	301
	302	struct jffs2_xattr_ref *jffs2_alloc_xattr_ref(void)
	303	{
	304	struct jffs2_xattr_ref *ref;
c6d59cdd	305	ref = kmem_cache_zalloc(xattr_ref_cache, GFP_KERNEL);
aa98d7cf KK	306	dbg_memalloc("%p\n", ref);
aa98d7cf KK	307
aa98d7cf	308	ref->class = RAWNODE_CLASS_XATTR_REF;
c9f700f8	309	ref->node = (void *)ref;
aa98d7cf KK	310	return ref;
	311	}
	312
	313	void jffs2_free_xattr_ref(struct jffs2_xattr_ref *ref)
	314	{
	315	dbg_memalloc("%p\n", ref);
	316	kmem_cache_free(xattr_ref_cache, ref);
	317	}
	318	#endif