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Groups > linux.kernel > #1428612
| From | David Howells <dhowells@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH net-next 10/14] rxrpc: Calls displayed in /proc may in future lack a connection |
| Date | 2016-06-22 12:00 +0200 |
| Message-ID | <rMN6V-1Ju-1@gated-at.bofh.it> (permalink) |
| References | <rMN6V-1Ju-3@gated-at.bofh.it> |
| Organization | Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 |
Allocated rxrpc calls displayed in /proc/net/rxrpc_calls may in future be on the proc list before they're connected or after they've been disconnected - in which case they may not have a pointer to a connection struct that can be used to get data from there. Deal with this by using stuff from the call struct in preference where possible and printing "no_connection" rather than a peer address if no connection is assigned. This change also has the added bonus that the service ID is now taken from the call rather the connection which will allow per-call service upgrades to be shown - something required for AuriStor server compatibility. Signed-off-by: David Howells <dhowells@redhat.com> --- net/rxrpc/proc.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c index 9863270691d7..500cdcdc843c 100644 --- a/net/rxrpc/proc.c +++ b/net/rxrpc/proc.c @@ -59,25 +59,28 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v) } call = list_entry(v, struct rxrpc_call, link); - conn = call->conn; sprintf(lbuff, "%pI4:%u", - &conn->params.local->srx.transport.sin.sin_addr, - ntohs(conn->params.local->srx.transport.sin.sin_port)); + &call->local->srx.transport.sin.sin_addr, + ntohs(call->local->srx.transport.sin.sin_port)); - sprintf(rbuff, "%pI4:%u", - &conn->params.peer->srx.transport.sin.sin_addr, - ntohs(conn->params.peer->srx.transport.sin.sin_port)); + conn = call->conn; + if (conn) + sprintf(rbuff, "%pI4:%u", + &conn->params.peer->srx.transport.sin.sin_addr, + ntohs(conn->params.peer->srx.transport.sin.sin_port)); + else + strcpy(rbuff, "no_connection"); seq_printf(seq, "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" " %-8.8s %08x %lx\n", lbuff, rbuff, - call->conn->params.service_id, + call->service_id, call->cid, call->call_id, - rxrpc_conn_is_service(call->conn) ? "Svc" : "Clt", + call->in_clientflag ? "Svc" : "Clt", atomic_read(&call->usage), rxrpc_call_states[call->state], call->remote_abort ?: call->local_abort,
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[PATCH net-next 10/14] rxrpc: Calls displayed in /proc may in future lack a connection David Howells <dhowells@redhat.com> - 2016-06-22 12:00 +0200
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