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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [fs/] [jffs2/] [current/] [src/] [malloc-ecos.c] - Blame information for rev 786

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1 786 skrzyp 
/*
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 * JFFS2 -- Journalling Flash File System, Version 2.
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 *
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 * Copyright (C) 2001-2003 Free Software Foundation, Inc.
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 *
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 * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
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 *
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 * For licensing information, see the file 'LICENCE' in this directory.
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 *
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 * $Id: malloc-ecos.c,v 1.4 2003/11/26 15:55:35 dwmw2 Exp $
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 *
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 */
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#include <linux/kernel.h>
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#include <cyg/hal/drv_api.h>
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#include "nodelist.h"
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#if !defined(CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE)
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# define CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE 0
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#endif
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struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
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{
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        return malloc(sizeof(struct jffs2_full_dirent) + namesize);
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}
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void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
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{
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        free(x);
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}
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struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
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{
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        return malloc(sizeof(struct jffs2_full_dnode));
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}
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void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
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{
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        free(x);
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}
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struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
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{
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        return malloc(sizeof(struct jffs2_raw_dirent));
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}
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void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
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{
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        free(x);
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}
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struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
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{
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        return malloc(sizeof(struct jffs2_raw_inode));
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}
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void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
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{
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        free(x);
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}
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struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
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{
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        return malloc(sizeof(struct jffs2_tmp_dnode_info));
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}
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void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
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{
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        free(x);
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}
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struct jffs2_node_frag *jffs2_alloc_node_frag(void)
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{
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        return malloc(sizeof(struct jffs2_node_frag));
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}
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void jffs2_free_node_frag(struct jffs2_node_frag *x)
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{
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        free(x);
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}
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#if CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE == 0
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int jffs2_create_slab_caches(void)
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{
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        return 0;
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}
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void jffs2_destroy_slab_caches(void)
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{
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}
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struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
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{
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        return malloc(sizeof(struct jffs2_raw_node_ref));
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}
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void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
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{
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        free(x);
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}
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#else // CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE == 0
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static struct jffs2_raw_node_ref
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        rnr_pool[CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE] __attribute__ ((aligned (4))),
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        * first = NULL;
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static cyg_drv_mutex_t mutex;
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int jffs2_create_slab_caches(void)
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{
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        struct jffs2_raw_node_ref * p;
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        cyg_drv_mutex_init(&mutex);
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        for (
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                p = rnr_pool;
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                p < rnr_pool + CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE - 1;
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                p++
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        )
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                p->next_phys = p + 1;
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        rnr_pool[CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE - 1].next_phys = NULL;
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        first = &rnr_pool[0];
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        return 0;
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}
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void jffs2_destroy_slab_caches(void)
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{
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}
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struct jffs2_raw_node_ref *jffs2_alloc_raw_node_ref(void)
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{
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        struct jffs2_raw_node_ref * p;
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        cyg_drv_mutex_lock(&mutex);
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        p = first;
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        if (p != NULL)
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                first = p->next_phys;
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        cyg_drv_mutex_unlock(&mutex);
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        return p;
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}
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void jffs2_free_raw_node_ref(struct jffs2_raw_node_ref *x)
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{
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        cyg_drv_mutex_lock(&mutex);
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        x->next_phys = first;
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        first = x;
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        cyg_drv_mutex_unlock(&mutex);
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}
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#endif // CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE == 0
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struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
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{
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        struct jffs2_inode_cache *ret = malloc(sizeof(struct jffs2_inode_cache));
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        D1(printk(KERN_DEBUG "Allocated inocache at %p\n", ret));
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        return ret;
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}
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void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
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{
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        D1(printk(KERN_DEBUG "Freeing inocache at %p\n", x));
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        free(x);
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}
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