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