[PATCH 4/13] use cpu_relax() in busy loop

[Chris Wright]

Replace busy loop nop with cpu_relax().

===== drivers/cdrom/sonycd535.c 1.39 vs edited =====
--- 1.39/drivers/cdrom/sonycd535.c	Tue Sep  9 07:41:30 2003
+++ edited/drivers/cdrom/sonycd535.c	Thu Sep 18 10:52:41 2003
@@ -1526,7 +1526,8 @@
 		enable_interrupts();
 		outb(0, read_status_reg);	/* does a reset? */
 		delay = jiffies + HZ/10;
-		while (time_before(jiffies, delay)) ;
+		while (time_before(jiffies, delay))
+			cpu_relax();
 
 		sony535_irq_used = probe_irq_off(irq_mask);
 		disable_interrupts();

-
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