staging: lustre: use explicit poll loop in ptlrpc_service_unlink_rqbd (0a0e5afc) · Commits · 戴 / test

Rather an using l_wait_event(), use wait_event_idle_timeout() with an explicit loop so it is easier to see what is happening. Reviewed-by:

drivers/staging/lustre/lustre/ptlrpc/service.c

+8 −7

Original line number	Diff line number	Diff line
		@@ -2618,7 +2618,7 @@ ptlrpc_service_unlink_rqbd(struct ptlrpc_service *svc)
		{
		struct ptlrpc_service_part *svcpt;
		struct ptlrpc_request_buffer_desc *rqbd;
		struct l_wait_info lwi;
		int cnt;
		int rc;
		int i;

		@@ -2658,12 +2658,13 @@ ptlrpc_service_unlink_rqbd(struct ptlrpc_service *svc)
		* the HUGE timeout lets us CWARN for visibility
		* of sluggish LNDs
		*/
		lwi = LWI_TIMEOUT_INTERVAL(
		LONG_UNLINK * HZ,
		HZ, NULL, NULL);
		rc = l_wait_event(svcpt->scp_waitq,
		svcpt->scp_nrqbds_posted == 0, &lwi);
		if (rc == -ETIMEDOUT) {
		cnt = 0;
		while (cnt < LONG_UNLINK &&
		(rc = wait_event_idle_timeout(svcpt->scp_waitq,
		svcpt->scp_nrqbds_posted == 0,
		HZ)) == 0)
		cnt ++;
		if (rc == 0) {
		CWARN("Service %s waiting for request buffers\n",
		svcpt->scp_service->srv_name);
		}