diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2017-07-31 15:07:18 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2017-08-01 12:13:07 +0100 |
| commit | d87aa138039a4be6d705793fd3e397c69c52405a (patch) | |
| tree | f0880c8b8daf9469aa4df2c93b256d3f044898ce /net/filter-rewriter.c | |
| parent | 3932ef3ffb54baf22ab05767e827bda1834d20df (diff) | |
| download | qemu-d87aa138039a4be6d705793fd3e397c69c52405a.tar.gz | |
trace: add trace_event_get_state_backends()
Code that checks dstate is unaware of SystemTap and LTTng UST dstate, so
the following trace event will not fire when solely enabled by SystemTap
or LTTng UST:
if (trace_event_get_state(TRACE_MY_EVENT)) {
str = g_strdup_printf("Expensive string to generate ...",
...);
trace_my_event(str);
g_free(str);
}
Add trace_event_get_state_backends() to fetch backend dstate. Those
backends that use QEMU dstate fetch it as part of
generate_h_backend_dstate().
Update existing trace_event_get_state() callers to use
trace_event_get_state_backends() instead.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170731140718.22010-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'net/filter-rewriter.c')
| -rw-r--r-- | net/filter-rewriter.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/filter-rewriter.c b/net/filter-rewriter.c index 55a6cf56fd..98120095de 100644 --- a/net/filter-rewriter.c +++ b/net/filter-rewriter.c @@ -69,7 +69,7 @@ static int handle_primary_tcp_pkt(NetFilterState *nf, struct tcphdr *tcp_pkt; tcp_pkt = (struct tcphdr *)pkt->transport_header; - if (trace_event_get_state(TRACE_COLO_FILTER_REWRITER_DEBUG)) { + if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) { trace_colo_filter_rewriter_pkt_info(__func__, inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst), ntohl(tcp_pkt->th_seq), ntohl(tcp_pkt->th_ack), @@ -115,7 +115,7 @@ static int handle_secondary_tcp_pkt(NetFilterState *nf, tcp_pkt = (struct tcphdr *)pkt->transport_header; - if (trace_event_get_state(TRACE_COLO_FILTER_REWRITER_DEBUG)) { + if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) { trace_colo_filter_rewriter_pkt_info(__func__, inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst), ntohl(tcp_pkt->th_seq), ntohl(tcp_pkt->th_ack), |