#include #include #include #include static LIST_HEAD(g_transport_list); static DEFINE_MUTEX(transport_mutex); struct iscsit_transport *iscsit_get_transport(int type) { struct iscsit_transport *t; mutex_lock(&transport_mutex); list_for_each_entry(t, &g_transport_list, t_node) { if (t->transport_type == type) { if (t->owner && !try_module_get(t->owner)) { t = NULL; } mutex_unlock(&transport_mutex); return t; } } mutex_unlock(&transport_mutex); return NULL; } void iscsit_put_transport(struct iscsit_transport *t) { module_put(t->owner); } int iscsit_register_transport(struct iscsit_transport *t) { INIT_LIST_HEAD(&t->t_node); mutex_lock(&transport_mutex); list_add_tail(&t->t_node, &g_transport_list); mutex_unlock(&transport_mutex); pr_debug("Registered iSCSI transport: %s\n", t->name); return 0; } EXPORT_SYMBOL(iscsit_register_transport); void iscsit_unregister_transport(struct iscsit_transport *t) { mutex_lock(&transport_mutex); list_del(&t->t_node); mutex_unlock(&transport_mutex); pr_debug("Unregistered iSCSI transport: %s\n", t->name); } EXPORT_SYMBOL(iscsit_unregister_transport); -loop-back'>packet-loop-back net-next plumbingsTobias Klauser
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authorFeng <fgao@ikuai8.com>2017-01-20 21:40:43 +0800
committerPablo Neira Ayuso <pablo@netfilter.org>2017-02-02 14:30:19 +0100
commit10435c1192d06bdb0bac7666452d8219d7e7c477 (patch)
tree93b76419142fe17b1d162d062c663297a3e8a965 /net/rxrpc/rxkad.c
parent1a28ad74ebd8f9d3c7eae0d781f72a6d30545e17 (diff)
netfilter: nf_tables: Eliminate duplicated code in nf_tables_table_enable()
If something fails in nf_tables_table_enable(), it unregisters the chains. But the rollback code is the same as nf_tables_table_disable() almostly, except there is one counter check. Now create one wrapper function to eliminate the duplicated codes. Signed-off-by: Feng <fgao@ikuai8.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/rxrpc/rxkad.c')