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authorSatoru Moriya <satoru.moriya@hds.com>2011-06-17 12:00:03 +0000
committerDavid S. Miller <davem@davemloft.net>2011-06-21 16:06:10 -0700
commit3847ce32aea9fdf56022de132000e8cf139042eb (patch)
tree02edbf97518be8af9a1ce978f7e9fcefdc7e0db1 /net/core/net-traces.c
parent296f7ea75b45913d5e2067baef0812087e0b6eb9 (diff)
downloadlinux-3847ce32aea9fdf56022de132000e8cf139042eb.tar.bz2
core: add tracepoints for queueing skb to rcvbuf
This patch adds 2 tracepoints to get a status of a socket receive queue and related parameter. One tracepoint is added to sock_queue_rcv_skb. It records rcvbuf size and its usage. The other tracepoint is added to __sk_mem_schedule and it records limitations of memory for sockets and current usage. By using these tracepoints we're able to know detailed reason why kernel drop the packet. Signed-off-by: Satoru Moriya <satoru.moriya@hds.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/net-traces.c')
-rw-r--r--net/core/net-traces.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index 13aab64520ad..52380b1d552a 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -28,6 +28,7 @@
#include <trace/events/skb.h>
#include <trace/events/net.h>
#include <trace/events/napi.h>
+#include <trace/events/sock.h>
#include <trace/events/udp.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);