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| author | David Howells <dhowells@redhat.com> | 2017-01-05 10:38:34 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-01-09 09:18:13 +0000 |
| commit | 8e8d7f13b6d5a93b3d2cf9a4ceaaf923809fd5ac (patch) | |
| tree | 8d5b1fd4da0dfec6cbaea9a846419fb8b7a1ac15 /fs/afs/rxrpc.c | |
| parent | 4289e60cb056ccae4311197d8a4a798aca0f8e55 (diff) | |
| download | linux-8e8d7f13b6d5a93b3d2cf9a4ceaaf923809fd5ac.tar.bz2 | |
afs: Add some tracepoints
Add three tracepoints to the AFS filesystem:
(1) The afs_recv_data tracepoint logs data segments that are extracted
from the data received from the peer through afs_extract_data().
(2) The afs_notify_call tracepoint logs notification from AF_RXRPC of data
coming in to an asynchronous call.
(3) The afs_cb_call tracepoint logs incoming calls that have had their
operation ID extracted and mapped into a supported cache manager
service call.
To make (3) work, the name strings in the afs_call_type struct objects have
to be annotated with __tracepoint_string. This is done with the CM_NAME()
macro.
Further, the AFS call state enum needs a name so that it can be used to
declare parameter types.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/rxrpc.c')
| -rw-r--r-- | fs/afs/rxrpc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 25f05a8d21b1..f26344a8c029 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -416,6 +416,8 @@ static void afs_deliver_to_call(struct afs_call *call) ret = rxrpc_kernel_recv_data(afs_socket, call->rxcall, NULL, 0, &offset, false, &call->abort_code); + trace_afs_recv_data(call, 0, offset, false, ret); + if (ret == -EINPROGRESS || ret == -EAGAIN) return; if (ret == 1 || ret < 0) { @@ -541,6 +543,7 @@ static void afs_wake_up_async_call(struct sock *sk, struct rxrpc_call *rxcall, { struct afs_call *call = (struct afs_call *)call_user_ID; + trace_afs_notify_call(rxcall, call); call->need_attention = true; queue_work(afs_async_calls, &call->async_work); } @@ -689,6 +692,8 @@ static int afs_deliver_cm_op_id(struct afs_call *call) if (!afs_cm_incoming_call(call)) return -ENOTSUPP; + trace_afs_cb_call(call); + /* pass responsibility for the remainer of this message off to the * cache manager op */ return call->type->deliver(call); @@ -780,6 +785,7 @@ int afs_extract_data(struct afs_call *call, void *buf, size_t count, ret = rxrpc_kernel_recv_data(afs_socket, call->rxcall, buf, count, &call->offset, want_more, &call->abort_code); + trace_afs_recv_data(call, count, call->offset, want_more, ret); if (ret == 0 || ret == -EAGAIN) return ret; |