PERFORCE change 57583 for review

[David Xu]

http://perforce.freebsd.org/chv.cgi?CH=57583

Change 57583 by davidxu at davidxu_alona on 2004/07/18 03:28:41

	Call thread_user_enter() in ast(), so thread_userret needn't
	call it.

Affected files ...

.. //depot/projects/davidxu_ksedbg/src/sys/kern/kern_kse.c#8 edit
.. //depot/projects/davidxu_ksedbg/src/sys/kern/subr_trap.c#5 edit

Differences ...

==== //depot/projects/davidxu_ksedbg/src/sys/kern/kern_kse.c#8 (text+ko) ====

@@ -373,7 +373,8 @@
 		error = copyout(&sigset, &ku->ku_mailbox->km_sigscaught,
 		    sizeof(sigset));
 	} else {
-		 if (! kg->kg_completed && !(ku->ku_flags & KUF_DOUPCALL)) {
+		if (((ku->ku_mflags & KMF_NOCOMPLETED) ||
+		     !kg->kg_completed) && !(ku->ku_flags & KUF_DOUPCALL)) {
 			kg->kg_upsleeps++;
 			td->td_kflags |= TDK_KSEREL;
 			error = msleep(&kg->kg_completed, &p->p_mtx,
@@ -424,7 +425,7 @@
 		kg = td->td_ksegrp;
 		if (kg->kg_upsleeps) {
 			mtx_unlock_spin(&sched_lock);
-			wakeup_one(&kg->kg_completed);
+			wakeup(&kg->kg_completed);
 			PROC_UNLOCK(p);
 			return (0);
 		}
@@ -1135,18 +1136,6 @@
 		td->td_pflags &= ~TDP_USTATCLOCK;
 	}
 
-#if 0
-	/*
-	 * Check if we should unbind and schedule upcall
-	 * after returned from interrupt or etcs, this
-	 * is usually true when process is being debugged.
-	 */
-	if (td->td_mailbox == NULL && ku != NULL &&
-	    !(td->td_pflags & TDP_UPCALLING) &&
-	    (kg->kg_completed || ku->ku_flags & KUF_DOUPCALL))
-		thread_user_enter(p, td);
-#endif
-
 	uts_crit = (td->td_mailbox == NULL);
 	/*
 	 * Optimisation:
@@ -1190,7 +1179,7 @@
 		 * XXXKSE Maybe wake all of them up.
 		 */
 		if (kg->kg_upsleeps)
-			wakeup_one(&kg->kg_completed);
+			wakeup(&kg->kg_completed);
 		mtx_lock_spin(&sched_lock);
 		thread_stopped(p);
 		thread_exit();
@@ -1336,7 +1325,6 @@
 	PROC_LOCK_ASSERT(p, MA_OWNED);
 	mtx_assert(&sched_lock, MA_OWNED);
 
-	return;
 	if (!(p->p_flag & P_SA))
 		return;
 

==== //depot/projects/davidxu_ksedbg/src/sys/kern/subr_trap.c#5 (text+ko) ====