[lustre-devel] [PATCH 15/24] lustre: lnet: add msg_type to lnet_event

[NeilBrown]

From: Olaf Weber <olaf at sgi.com>

Add a msg_type field to the lnet_event structure. This makes
it possible for an event handler to tell whether LNET_EVENT_SEND
corresponds to a GET or a PUT message.

WC-bug-id: https://jira.whamcloud.com/browse/LU-9480
Signed-off-by: Olaf Weber <olaf at sgi.com>
Reviewed-on: https://review.whamcloud.com/25785
Reviewed-by: Amir Shehata <amir.shehata at intel.com>
Tested-by: Amir Shehata <amir.shehata at intel.com>
Signed-off-by: NeilBrown <neilb at suse.com>
---
 .../lustre/include/uapi/linux/lnet/lnet-types.h    |    5 +++++
 drivers/staging/lustre/lnet/lnet/lib-msg.c         |    1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/staging/lustre/include/uapi/linux/lnet/lnet-types.h b/drivers/staging/lustre/include/uapi/linux/lnet/lnet-types.h
index e0e4fd259795..1ecf18e4a278 100644
--- a/drivers/staging/lustre/include/uapi/linux/lnet/lnet-types.h
+++ b/drivers/staging/lustre/include/uapi/linux/lnet/lnet-types.h
@@ -650,6 +650,11 @@ struct lnet_event {
 	 * \see LNetPut
 	 */
 	__u64			hdr_data;
+	/**
+	 * The message type, to ensure a handler for LNET_EVENT_SEND can
+	 * distinguish between LNET_MSG_GET and LNET_MSG_PUT.
+	 */
+	__u32               msg_type;
 	/**
 	 * Indicates the completion status of the operation. It's 0 for
 	 * successful operations, otherwise it's an error code.
diff --git a/drivers/staging/lustre/lnet/lnet/lib-msg.c b/drivers/staging/lustre/lnet/lnet/lib-msg.c
index 1817e54a16a5..db13d01d366f 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-msg.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-msg.c
@@ -63,6 +63,7 @@ lnet_build_msg_event(struct lnet_msg *msg, enum lnet_event_kind ev_type)
 	LASSERT(!msg->msg_routing);
 
 	ev->type = ev_type;
+	ev->msg_type = msg->msg_type;
 
 	if (ev_type == LNET_EVENT_SEND) {
 		/* event for active message */