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authorAlexander Aring <aahringo@redhat.com>2021-11-02 20:17:16 +0100
committerDavid Teigland <teigland@redhat.com>2021-11-02 20:39:20 +0100
commit92732376fd29462b502f41486bcef55f49c5713e (patch)
tree80aa05573ecd50bb85d3d35e5801f6c648cff1b1 /fs/dlm
parentfs: dlm: initial support for tracepoints (diff)
downloadlinux-92732376fd29462b502f41486bcef55f49c5713e.tar.xz
linux-92732376fd29462b502f41486bcef55f49c5713e.zip
fs: dlm: trace socket handling
This patch adds tracepoints for dlm socket receive and send functionality. We can use it to track how much data was send or received to or from a specific nodeid. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm')
-rw-r--r--fs/dlm/lowcomms.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index bee3757eb4c7..6d6dcf0d5ba9 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -53,6 +53,8 @@
#include <net/sctp/sctp.h>
#include <net/ipv6.h>
+#include <trace/events/dlm.h>
+
#include "dlm_internal.h"
#include "lowcomms.h"
#include "midcomms.h"
@@ -925,6 +927,7 @@ static int receive_from_sock(struct connection *con)
msg.msg_flags = MSG_DONTWAIT | MSG_NOSIGNAL;
ret = kernel_recvmsg(con->sock, &msg, &iov, 1, iov.iov_len,
msg.msg_flags);
+ trace_dlm_recv(con->nodeid, ret);
if (ret == -EAGAIN)
break;
else if (ret <= 0)
@@ -1411,6 +1414,7 @@ static void send_to_sock(struct connection *con)
ret = kernel_sendpage(con->sock, e->page, offset, len,
msg_flags);
+ trace_dlm_send(con->nodeid, ret);
if (ret == -EAGAIN || ret == 0) {
if (ret == -EAGAIN &&
test_bit(SOCKWQ_ASYNC_NOSPACE, &con->sock->flags) &&