---

yaml --- r: 110817 b: refs/heads/master c: b1e7661 h: refs/heads/master i: 110815: 5e53e7f v: v3
git-mirror · Oct 10, 2008 · fac72ec · fac72ec
1 parent 37b66ca
commit fac72ec
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b2bbb642ac2829006a81ae164e2f06ebc22f81dd
+refs/heads/master: b1e766137fe2462fd110e2930f74ef5636adb436
diff --git a/trunk/drivers/s390/cio/cio.c b/trunk/drivers/s390/cio/cio.c
@@ -114,6 +114,7 @@ cio_tpi(void)
 	struct tpi_info *tpi_info;
 	struct subchannel *sch;
 	struct irb *irb;
+	int irq_context;
 
 	tpi_info = (struct tpi_info *) __LC_SUBCHANNEL_ID;
 	if (tpi (NULL) != 1)
@@ -126,15 +127,18 @@ cio_tpi(void)
 	sch = (struct subchannel *)(unsigned long)tpi_info->intparm;
 	if (!sch)
 		return 1;
-	local_bh_disable();
+	irq_context = in_interrupt();
+	if (!irq_context)
+		local_bh_disable();
 	irq_enter ();
 	spin_lock(sch->lock);
 	memcpy(&sch->schib.scsw, &irb->scsw, sizeof(union scsw));
 	if (sch->driver && sch->driver->irq)
 		sch->driver->irq(sch);
 	spin_unlock(sch->lock);
 	irq_exit ();
-	_local_bh_enable();
+	if (!irq_context)
+		_local_bh_enable();
 	return 1;
 }