void minix_inode_init(void)
{
int i;
/* init inode slab */
minix_inode_slab = alloc_slab(sizeof(struct minix_inode));
if (!minix_inode_slab)
panic("No enough memory for minix inode slab");
/* init hash table */
for (i = 0; i < MINIX_INODE_HASH_SIZE; i++)
hlist_head_init(&minix_inode_htable[i]);
}
void block_init(void)
{
int i;
/* init block buffer allocator */
block_slab = alloc_slab(sizeof(struct block));
if (!block_slab)
panic("No memory for block slab");
/* init block buffer hash table */
for (i = 0; i < BLOCK_HASH_SIZE; i++)
hlist_head_init(&block_htable[i]);
hd_init();
block_test();
}
/* called by the current thread to initialize a transaction descriptor */
stm_tx_t *stm_new()
{
stm_tx_t *newtx;
if (unused_tx!=NULL) {
pthread_mutex_lock(&unused_tx_mutex);
if (unused_tx!=NULL) {
tx_block_t *cur = unused_tx;
unused_tx = unused_tx->next;
newtx = (stm_tx_t*)cur->tx;
free(cur);
pthread_mutex_unlock(&unused_tx_mutex);
return newtx;
}
pthread_mutex_unlock(&unused_tx_mutex);
}
if ((newtx = (stm_tx_t*)malloc(sizeof(stm_tx_t)))==NULL) {
perror("malloc: no free memory!");
exit(1);
}
DPRINTF("stm new: %p\n", newtx);
#ifdef DEBUG
memset(newtx, 0x0, sizeof(stm_tx_t));
#endif
int ret = posix_memalign((void**)&(newtx->writehash), 64, sizeof(writeset_t*)*WBUF_MAX_HASH_ARRAY_SIZE);
newtx->whashsize = WBUF_HASH_ARRAY_SIZE;
newtx->whashmask = WBUF_HASH_ARRAY_SIZE-1;
if (newtx->writehash==NULL || ret!=0) {
perror("malloc: no free memory!");
exit(1);
}
newtx->status = TX_IDLE;
newtx->freeslabs = NULL;
newtx->buffers = NULL;
newtx->writeset = alloc_slab(newtx);
ret = posix_memalign((void**)&(newtx->lockset), 64, NRRLENTRIESINSET*sizeof(lockset_t));
ret = ret + posix_memalign((void**)&newtx->readset, 64, 4*NRRLENTRIESINSET*sizeof(readset_t));
newtx->maxlocks = NRRLENTRIESINSET;
newtx->locksize = NRRLENTRIESINSET*sizeof(lockset_t);
newtx->maxreads = 4*NRRLENTRIESINSET;
newtx->readsize = 4*NRRLENTRIESINSET*sizeof(readset_t);
if (newtx->readset==NULL || newtx->lockset==NULL || ret!=0) {
perror("malloc: no free memory!");
exit(1);
}
#ifdef ADAPTIVENESS
// adaptiveness
newtx->writethrough=1;
#ifdef ADAPTIVEHASH
newtx->adaptive_hash=0;
#endif
#ifdef ADAPTIVEWHASH2
newtx->adaptive_hash=8;
#endif
newtx->wtotal=0;
newtx->nrtx=0;
#endif
/* clear read and writeset */
newtx->nr_uniq_writes = 0;
#ifdef GLOBAL_STATS
newtx->retries=0;
newtx->aborts=0;
newtx->commits=0;
xxstm_nr_tx++;
#endif
#ifdef STATS
newtx->nb_reads = 0;
newtx->nb_writes = 0;
newtx->nb_locks=0;
newtx->nb_min_reads=-1;
newtx->nb_max_reads=0;
newtx->nb_min_writes=-1;
newtx->nb_max_writes=0;
newtx->nb_tot_reads=0;
newtx->nb_tot_writes=0;
newtx->nb_read_ver_err=0;
newtx->nb_read_ver_err_rec=0;
newtx->nb_read_ver_change=0;
newtx->nb_lock_ver_err=0;
newtx->nb_lock_ver_err_rec=0;
#endif
return newtx;
}
static int minit(void)
{
int err = 0;
init_hash_parameters();
if (0 > (err = init_some_parameters()))
goto out;
if (0 > (err = alloc_percpu_file()))
goto err_alloc_file;
if (0 > (err = alloc_slab()))
goto err_alloc_slab;
if (0 > (err = alloc_bitmap()))
goto err_bitmap;
if (0 > (err = initial_hash_table_cache()))
goto err_hash_table_cache;
printk(KERN_INFO "Start %s.", THIS_MODULE->name);
if (0 > (err = nf_register_hook(&nf_out_ops))) {
printk(KERN_ERR "Failed to register nf_out %s.\n", THIS_MODULE->name);
goto err_nf_reg_out;
}
if (0 > (err = nf_register_hook(&nf_in_ops))) {
printk(KERN_ERR "Failed to register nf_in %s.\n", THIS_MODULE->name);
goto err_nf_reg_in;
}
if (tcp_alloc_sha1sig_pool() == NULL) {
printk(KERN_ERR "Failed to alloc sha1 pool %s.\n", THIS_MODULE->name);
goto err_sha1siq_pool;
}
err = register_jprobe(&jps_netif_receive_skb);
if (err < 0) {
printk(KERN_ERR "Failed to register jprobe netif_receive_skb %s.\n", THIS_MODULE->name);
goto out;
}
kprobe_in_reged = 1;
goto out;
err_sha1siq_pool:
tcp_free_sha1sig_pool();
err_nf_reg_in:
nf_unregister_hook(&nf_in_ops);
err_nf_reg_out:
nf_unregister_hook(&nf_out_ops);
err_hash_table_cache:
release_hash_table_cache();
err_bitmap:
free_bitmap();
err_alloc_slab:
free_slab();
err_alloc_file:
free_percpu_file();
out:
return err;
}
