[DLM] Fix schedule() calls

I was a little over-enthusiastic turning schedule() calls int cond_sched() when fixing the DLM for Andrew Morton.

These four should really be calls to schedule() or the dlm can busy-wait.
Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/dlm/lowcomms-sctp.c

@@ -1109,7 +1109,7 @@ static int dlm_recvd(void *data)
 		set_current_state(TASK_INTERRUPTIBLE);
 		add_wait_queue(&lowcomms_recv_wait, &wait);
 		if (!test_bit(CF_READ_PENDING, &sctp_con.flags))
-			cond_resched();
+			schedule();
 		remove_wait_queue(&lowcomms_recv_wait, &wait);
 		set_current_state(TASK_RUNNING);
 
@@ -1141,7 +1141,7 @@ static int dlm_sendd(void *data)
 	while (!kthread_should_stop()) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (write_list_empty())
-			cond_resched();
+			schedule();
 		set_current_state(TASK_RUNNING);
 
 		if (sctp_con.eagain_flag) {

fs/dlm/lowcomms-tcp.c

@@ -996,7 +996,7 @@ static int dlm_recvd(void *data)
 	while (!kthread_should_stop()) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (read_list_empty())
-			cond_resched();
+			schedule();
 		set_current_state(TASK_RUNNING);
 
 		process_sockets();
@@ -1030,7 +1030,7 @@ static int dlm_sendd(void *data)
 	while (!kthread_should_stop()) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (write_and_state_lists_empty())
-			cond_resched();
+			schedule();
 		set_current_state(TASK_RUNNING);
 
 		process_state_queue();