commit 51b9d495f2a99c65c9e524c8f6fe283ebfabae1d
author Peter Maydell <peter.maydell@linaro.org> Wed Apr 26 16:19:27 2017 +0100
committer Peter Maydell <peter.maydell@linaro.org> Wed Apr 26 16:19:27 2017 +0100
tree cf7fa7454ebda6dd47c3ad9e30910d201ce0a691
parent 41c7c7ef2936722258c7ccf06027daca499c113d

Revert "COLO-compare: Optimize tcp compare trace event"

This reverts commit 0fc8aec7de64f2bf83a274a2a38b938ce03425d2.

In commit 2dfe5113b11 we split a trace event with a lot of arguments
in two, because the UST trace backend has a limit on the number
of arguments you can have in a single trace event. Unfortunately
we subsequently forgot about this, and in commit 0fc8aec7de64f2
we merged the two trace events again, recreating the "UST backend
doesn't build" bug.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

net/colo-compare.c

diff --git a/net/colo-compare.c b/net/colo-compare.c
index 03ddebe..4ab80b1 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -264,23 +264,18 @@
         res = -1;
     }
 
-    if (res && trace_event_get_state(TRACE_COLO_COMPARE_MISCOMPARE)) {
-        char ip_src[20], ip_dst[20];
+    if (res != 0 && trace_event_get_state(TRACE_COLO_COMPARE_MISCOMPARE)) {
+        trace_colo_compare_pkt_info_src(inet_ntoa(ppkt->ip->ip_src),
+                                        ntohl(stcp->th_seq),
+                                        ntohl(stcp->th_ack),
+                                        res, stcp->th_flags,
+                                        spkt->size);
 
-        strcpy(ip_src, inet_ntoa(ppkt->ip->ip_src));
-        strcpy(ip_dst, inet_ntoa(ppkt->ip->ip_dst));
-
-        trace_colo_compare_tcp_info(ip_src,
-                                    ip_dst,
-                                    ntohl(ptcp->th_seq),
-                                    ntohl(stcp->th_seq),
-                                    ntohl(ptcp->th_ack),
-                                    ntohl(stcp->th_ack),
-                                    res,
-                                    ptcp->th_flags,
-                                    stcp->th_flags,
-                                    ppkt->size,
-                                    spkt->size);
+        trace_colo_compare_pkt_info_dst(inet_ntoa(ppkt->ip->ip_dst),
+                                        ntohl(ptcp->th_seq),
+                                        ntohl(ptcp->th_ack),
+                                        res, ptcp->th_flags,
+                                        ppkt->size);
 
         qemu_hexdump((char *)ppkt->data, stderr,
                      "colo-compare ppkt", ppkt->size);

net/trace-events

diff --git a/net/trace-events b/net/trace-events
index 123cb28..35198bc 100644
--- a/net/trace-events
+++ b/net/trace-events
@@ -13,7 +13,8 @@
 colo_compare_ip_info(int psize, const char *sta, const char *stb, int ssize, const char *stc, const char *std) "ppkt size = %d, ip_src = %s, ip_dst = %s, spkt size = %d, ip_src = %s, ip_dst = %s"
 colo_old_packet_check_found(int64_t old_time) "%" PRId64
 colo_compare_miscompare(void) ""
-colo_compare_tcp_info(const char *src, const char *dst, uint32_t pseq, uint32_t sseq, uint32_t pack, uint32_t sack, int res, uint32_t pflag, uint32_t sflag, int psize, int ssize) "src/dst: %s/%s pseq/sseq:%u/%u pack/sack:%u/%u res=%d pflags/sflag:%x/%x psize/ssize:%d/%d \n"
+colo_compare_pkt_info_src(const char *src, uint32_t sseq, uint32_t sack, int res, uint32_t sflag, int ssize) "src/dst: %s s: seq/ack=%u/%u res=%d flags=%x spkt_size: %d\n"
+colo_compare_pkt_info_dst(const char *dst, uint32_t dseq, uint32_t dack, int res, uint32_t dflag, int dsize) "src/dst: %s d: seq/ack=%u/%u res=%d flags=%x dpkt_size: %d\n"
 
 # net/filter-rewriter.c
 colo_filter_rewriter_debug(void) ""