staging/lustre/ptlrpc: Remove server-specific health checks

ptlrpc_service_health_check is only used on a service, so
it makes no point to retain it in the client code.
Also removing it's helpers: ptlrpc_svcpt_health_check and
ptlrpc_nrs_req_peek_nolock

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 58 deletions

diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index 326f89e0ccc7..cdc7e62fde2b 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -2977,61 +2977,3 @@ int ptlrpc_unregister_service(struct ptlrpc_service *service)
 	return 0;
 }
 EXPORT_SYMBOL(ptlrpc_unregister_service);
-
-/**
- * Returns 0 if the service is healthy.
- *
- * Right now, it just checks to make sure that requests aren't languishing
- * in the queue.  We'll use this health check to govern whether a node needs
- * to be shot, so it's intentionally non-aggressive. */
-static int ptlrpc_svcpt_health_check(struct ptlrpc_service_part *svcpt)
-{
-	struct ptlrpc_request *request = NULL;
-	struct timespec64 right_now;
-	struct timespec64 timediff;
-
-	ktime_get_real_ts64(&right_now);
-
-	spin_lock(&svcpt->scp_req_lock);
-	/* How long has the next entry been waiting? */
-	if (ptlrpc_server_high_pending(svcpt, true))
-		request = ptlrpc_nrs_req_peek_nolock(svcpt, true);
-	else if (ptlrpc_server_normal_pending(svcpt, true))
-		request = ptlrpc_nrs_req_peek_nolock(svcpt, false);
-
-	if (request == NULL) {
-		spin_unlock(&svcpt->scp_req_lock);
-		return 0;
-	}
-
-	timediff = timespec64_sub(right_now, request->rq_arrival_time);
-	spin_unlock(&svcpt->scp_req_lock);
-
-	if ((timediff.tv_sec) >
-	    (AT_OFF ? obd_timeout * 3 / 2 : at_max)) {
-		CERROR("%s: unhealthy - request has been waiting %llds\n",
-		       svcpt->scp_service->srv_name, (s64)timediff.tv_sec);
-		return -1;
-	}
-
-	return 0;
-}
-
-int
-ptlrpc_service_health_check(struct ptlrpc_service *svc)
-{
-	struct ptlrpc_service_part *svcpt;
-	int i;
-
-	if (svc == NULL)
-		return 0;
-
-	ptlrpc_service_for_each_part(svcpt, i, svc) {
-		int rc = ptlrpc_svcpt_health_check(svcpt);
-
-		if (rc != 0)
-			return rc;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(ptlrpc_service_health_check);