int ws_sta_seq_read_reset(struct seq_file *seq, void *offset)
{
struct ws_monif *monif = (struct ws_monif *)seq->private;
struct ws_hash *hash = &monif->hash;
struct hlist_head *head;
struct hlist_node *node;
spinlock_t *list_lock; /* protects write access to the hash lists */
struct ws_sta *ws_sta;
int i;
bool first = true;
if (!atomic_read(&monif->active))
return -1;
ws_sta_seq_print_head(seq);
for (i = 0; i < WS_HASH_SIZE; i++) {
head = &hash->table[i];
list_lock = &hash->list_locks[i];
/* TODO: can we write while doing spinlocks?! */
spin_lock_bh(list_lock);
hlist_for_each_entry_safe(ws_sta, node, head, hash_entry) {
if (!first)
seq_puts(seq, ",");
ws_sta_seq_print(ws_sta, seq, offset);
hlist_del_rcu(&ws_sta->hash_entry);
ws_sta_free_ref(ws_sta);
first = false;
}
spin_unlock_bh(list_lock);
}
ws_sta_seq_print_tail(seq);
return 0;
}
int ws_hash_free(struct ws_hash *hash)
{
struct ws_sta *ws_sta;
struct hlist_node *node;
struct hlist_head *head;
spinlock_t *list_lock; /* protects write access to the hash lists */
int i;
for (i = 0; i < WS_HASH_SIZE; i++) {
head = &hash->table[i];
list_lock = &hash->list_locks[i];
spin_lock_bh(list_lock);
hlist_for_each_entry_safe(ws_sta, node, head, hash_entry) {
hlist_del_rcu(&ws_sta->hash_entry);
ws_sta_free_ref(ws_sta);
}
spin_unlock_bh(list_lock);
}
