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authorDavid Howells <dhowells@redhat.com>2016-09-17 10:49:14 +0100
committerDavid Howells <dhowells@redhat.com>2016-09-17 11:24:04 +0100
commit71f3ca408fd43b586c02480768a503af075b247e (patch)
tree9fcca5ef4f931aa9836e5f92b78abfb5c2d68a55 /net/rxrpc/peer_event.c
parentba39f3a0ed756ccd882adf4a77916ec863db3ce4 (diff)
download96b-common-71f3ca408fd43b586c02480768a503af075b247e.tar.gz
rxrpc: Improve skb tracing
Improve sk_buff tracing within AF_RXRPC by the following means: (1) Use an enum to note the event type rather than plain integers and use an array of event names rather than a big multi ?: list. (2) Distinguish Rx from Tx packets and account them separately. This requires the call phase to be tracked so that we know what we might find in rxtx_buffer[]. (3) Add a parameter to rxrpc_{new,see,get,free}_skb() to indicate the event type. (4) A pair of 'rotate' events are added to indicate packets that are about to be rotated out of the Rx and Tx windows. (5) A pair of 'lost' events are added, along with rxrpc_lose_skb() for packet loss injection recording. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/peer_event.c')
-rw-r--r--net/rxrpc/peer_event.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index 9e0725f5652b..18276e7cb9e0 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -155,11 +155,11 @@ void rxrpc_error_report(struct sock *sk)
_leave("UDP socket errqueue empty");
return;
}
- rxrpc_new_skb(skb);
+ rxrpc_new_skb(skb, rxrpc_skb_rx_received);
serr = SKB_EXT_ERR(skb);
if (!skb->len && serr->ee.ee_origin == SO_EE_ORIGIN_TIMESTAMPING) {
_leave("UDP empty message");
- rxrpc_free_skb(skb);
+ rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
return;
}
@@ -169,7 +169,7 @@ void rxrpc_error_report(struct sock *sk)
peer = NULL;
if (!peer) {
rcu_read_unlock();
- rxrpc_free_skb(skb);
+ rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
_leave(" [no peer]");
return;
}
@@ -179,7 +179,7 @@ void rxrpc_error_report(struct sock *sk)
serr->ee.ee_code == ICMP_FRAG_NEEDED)) {
rxrpc_adjust_mtu(peer, serr);
rcu_read_unlock();
- rxrpc_free_skb(skb);
+ rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
rxrpc_put_peer(peer);
_leave(" [MTU update]");
return;
@@ -187,7 +187,7 @@ void rxrpc_error_report(struct sock *sk)
rxrpc_store_error(peer, serr);
rcu_read_unlock();
- rxrpc_free_skb(skb);
+ rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
/* The ref we obtained is passed off to the work item */
rxrpc_queue_work(&peer->error_distributor);