[PATCH 67/80] staging: lustre: ptlrpc: request gets stuck in UNREGISTERING phase

From: James Simmons
Date: Tue Aug 16 2016 - 16:25:38 EST


From: Andriy Skulysh <Andriy_Skulysh@xxxxxxxxxxx>

Exit condition from UNREGISTERING phase is releasing of
both reply and bulk buffers.

Call ptlrpc_unregister_bulk() if ptlrpc_unregister_reply()
wasn't completed in async mode before switching to
UNREGISTERING phase.

Signed-off-by: Andriy Skulysh <Andriy_Skulysh@xxxxxxxxxxx>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5259
Xyratex-bug-id: MRP-1960
Reviewed-on: http://review.whamcloud.com/10846
Reviewed-by: Andreas Dilger <andreas.dilger@xxxxxxxxx>
Reviewed-by: Ann Koehler <amk@xxxxxxxx>
Reviewed-by: Liang Zhen <liang.zhen@xxxxxxxxx>
Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx>
Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx>
---
drivers/staging/lustre/lustre/ptlrpc/client.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c
index f2e71b4..bae91bd 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -1630,8 +1630,10 @@ int ptlrpc_check_set(const struct lu_env *env, struct ptlrpc_request_set *set)
req->rq_waiting || req->rq_wait_ctx) {
int status;

- if (!ptlrpc_unregister_reply(req, 1))
+ if (!ptlrpc_unregister_reply(req, 1)) {
+ ptlrpc_unregister_bulk(req, 1);
continue;
+ }

spin_lock(&imp->imp_lock);
if (ptlrpc_import_delay_req(imp, req,
--
1.7.1