[PATCH 038/124] staging: lustre: osc: debug to match extent to brw RPC

From: James Simmons
Date: Sun Sep 18 2016 - 17:02:49 EST


From: Patrick Farrell <paf@xxxxxxxx>

Currently, it's difficult to match brw RPCs to objects and
extents from client logs. This patch adds a D_RPCTRACE
debug message giving the necessary information.

Signed-off-by: Patrick Farrell <paf@xxxxxxxx>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5531
Reviewed-on: http://review.whamcloud.com/11548
Reviewed-by: Alexey Lyashkov <alexey.lyashkov@xxxxxxxxxxx>
Reviewed-by: Ann Koehler <amk@xxxxxxxx>
Reviewed-by: Ryan Haasken <haasken@xxxxxxxx>
Reviewed-by: Jinshan Xiong <jinshan.xiong@xxxxxxxxx>
Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx>
Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx>
---
drivers/staging/lustre/lustre/osc/osc_request.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 5cca2b6..d5d2963 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -1419,6 +1419,11 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli,
INIT_LIST_HEAD(&aa->aa_oaps);

*reqp = req;
+ niobuf = req_capsule_client_get(pill, &RMF_NIOBUF_REMOTE);
+ CDEBUG(D_RPCTRACE, "brw rpc %p - object " DOSTID " offset %lld<>%lld\n",
+ req, POSTID(&oa->o_oi), niobuf[0].rnb_offset,
+ niobuf[niocount - 1].rnb_offset + niobuf[niocount - 1].rnb_len);
+
return 0;

out:
--
1.7.1