[lustre-devel] [PATCH 14/23] lnet: Ensure LNet pings and pushes are always tracked

[James Simmons]

From: Chris Horn <hornc at cray.com>

Add the appropriate option to the MD used for LNet pings and pushes
to ensure that these are always tracked via LNet's response tracking
mechanism, regardless of the value of lnet_response_tracking
variable.

HPE-bug-id: LUS-8827
WC-bug-id: https://jira.whamcloud.com/browse/LU-13502
Lustre-commit: 9ed12d2e8f3f2 ("LU-13502 lnet: Ensure LNet pings and pushes are always tracked")
Signed-off-by: Chris Horn <hornc at cray.com>
Reviewed-on: https://review.whamcloud.com/38451
Reviewed-by: Neil Brown <neilb at suse.de>
Reviewed-by: Serguei Smirnov <ssmirnov at whamcloud.com>
Reviewed-by: James Simmons <jsimmons at infradead.org>
Reviewed-by: Oleg Drokin <green at whamcloud.com>
Signed-off-by: James Simmons <jsimmons at infradead.org>
---
 net/lnet/lnet/lib-move.c | 2 +-
 net/lnet/lnet/peer.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/lnet/lnet/lib-move.c b/net/lnet/lnet/lib-move.c
index c0dd30c..aa6fe37 100644
--- a/net/lnet/lnet/lib-move.c
+++ b/net/lnet/lnet/lib-move.c
@@ -3340,7 +3340,7 @@ struct lnet_mt_event_info {
 	md.length = LNET_PING_INFO_SIZE(nnis);
 	md.threshold = 2; /* GET/REPLY */
 	md.max_size = 0;
-	md.options = LNET_MD_TRUNCATE;
+	md.options = LNET_MD_TRUNCATE | LNET_MD_TRACK_RESPONSE;
 	md.user_ptr = user_data;
 	md.handler = handler;
 
diff --git a/net/lnet/lnet/peer.c b/net/lnet/lnet/peer.c
index f745394..578591d 100644
--- a/net/lnet/lnet/peer.c
+++ b/net/lnet/lnet/peer.c
@@ -3097,7 +3097,7 @@ static int lnet_peer_send_push(struct lnet_peer *lp)
 	md.length = LNET_PING_INFO_SIZE(pbuf->pb_nnis);
 	md.threshold = 2; /* Put/Ack */
 	md.max_size = 0;
-	md.options = 0;
+	md.options = LNET_MD_TRACK_RESPONSE;
 	md.handler = the_lnet.ln_dc_handler;
 	md.user_ptr = lp;
 
-- 
1.8.3.1