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afs: Add a tracepoint to record callbacks from unlisted servers

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Add a tracepoint to record callbacks from servers for which we don't have a
record.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-05-11 22:59:42 +01:00
parent 001ab5a67e
commit 3709a399c1
2 changed files with 51 additions and 3 deletions
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12
fs/afs/cmservice.c
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@@ -287,8 +287,10 @@ static int afs_deliver_cb_callback(struct afs_call *call)
* vnodes to operate upon */
rxrpc_kernel_get_peer(call->net->socket, call->rxcall, &srx);
server = afs_find_server(call->net, &srx);
if (!server)
if (!server) {
trace_afs_cm_no_server(call, &srx);
return -ENOTCONN;
}
call->cm_server = server;
return afs_queue_call_work(call);
@@ -329,8 +331,10 @@ static int afs_deliver_cb_init_call_back_state(struct afs_call *call)
/* we'll need the file server record as that tells us which set of
* vnodes to operate upon */
server = afs_find_server(call->net, &srx);
if (!server)
if (!server) {
trace_afs_cm_no_server(call, &srx);
return -ENOTCONN;
}
call->cm_server = server;
return afs_queue_call_work(call);
@@ -400,8 +404,10 @@ static int afs_deliver_cb_init_call_back_state3(struct afs_call *call)
rcu_read_lock();
server = afs_find_server_by_uuid(call->net, call->request);
rcu_read_unlock();
if (!server)
if (!server) {
trace_afs_cm_no_server_u(call, call->request);
return -ENOTCONN;
}
call->cm_server = server;
return afs_queue_call_work(call);