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authorDavid Howells <dhowells@redhat.com>2016-08-23 15:27:24 +0100
committerDavid Howells <dhowells@redhat.com>2016-08-23 16:02:35 +0100
commitf51b4480021c470d1f5e8066ccc7c10513bd4e37 (patch)
tree63b43923ac921fe8e3509d5b06f0efafe062a038 /net/rxrpc/ar-internal.h
parentdf844fd46b98c2efde8f4ac2d50d59bc90c4c679 (diff)
downloadop-kernel-dev-f51b4480021c470d1f5e8066ccc7c10513bd4e37.zip
op-kernel-dev-f51b4480021c470d1f5e8066ccc7c10513bd4e37.tar.gz
rxrpc: Set connection expiry on idle, not put
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>
Diffstat (limited to 'net/rxrpc/ar-internal.h')
-rw-r--r--net/rxrpc/ar-internal.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 8cb517f..66c9170 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -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))
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