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rxrpc: Set connection expiry on idle, not put

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Set the connection expiry time when a connection becomes idle rather than
doing this in rxrpc_put_connection().  This makes the put path more
efficient (it is likely to be called occasionally whilst a connection has
outstanding calls because active workqueue items needs to be given a ref).

The time is also preset in the connection allocator in case the connection
never gets used.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2016-08-23 15:27:24 +01:00
parent df844fd46b
commit f51b448002
2 changed files with 26 additions and 27 deletions
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11
net/rxrpc/ar-internal.h
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@@ -313,7 +313,7 @@ struct rxrpc_connection {
struct rxrpc_crypt csum_iv; /* packet checksum base */
unsigned long flags;
unsigned long events;
unsigned long put_time; /* Time at which last put */
unsigned long idle_timestamp; /* Time at which last became idle */
spinlock_t state_lock; /* state-change lock */
atomic_t usage;
enum rxrpc_conn_proto_state state : 8; /* current state of connection */
@@ -565,7 +565,7 @@ struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *,
struct sk_buff *);
void __rxrpc_disconnect_call(struct rxrpc_call *);
void rxrpc_disconnect_call(struct rxrpc_call *);
void rxrpc_put_connection(struct rxrpc_connection *);
void __rxrpc_put_connection(struct rxrpc_connection *);
void __exit rxrpc_destroy_all_connections(void);
static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn)
@@ -589,6 +589,13 @@ struct rxrpc_connection *rxrpc_get_connection_maybe(struct rxrpc_connection *con
return atomic_inc_not_zero(&conn->usage) ? conn : NULL;
}
static inline void rxrpc_put_connection(struct rxrpc_connection *conn)
{
if (conn && atomic_dec_return(&conn->usage) == 1)
__rxrpc_put_connection(conn);
}
static inline bool rxrpc_queue_conn(struct rxrpc_connection *conn)
{
if (!rxrpc_get_connection_maybe(conn))