Messages in this thread Patch in this message | | | Date | Thu, 18 Sep 2003 16:33:11 -0700 | From | Chris Wright <> | Subject | [PATCH 5/13] use cpu_relax() in busy loop |
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Replace busy loop nop with cpu_relax().
===== drivers/char/isicom.c 1.25 vs edited ===== --- 1.25/drivers/char/isicom.c Mon Aug 18 10:39:47 2003 +++ edited/drivers/char/isicom.c Thu Sep 18 10:54:12 2003 @@ -153,12 +153,14 @@ inw(base+0x8); - for(i=jiffies+HZ/100;time_before(jiffies, i);); + for(i=jiffies+HZ/100;time_before(jiffies, i);) + cpu_relax(); outw(0,base+0x8); /* Reset */ for(j=1;j<=3;j++) { - for(i=jiffies+HZ;time_before(jiffies, i);); + for(i=jiffies+HZ;time_before(jiffies, i);) + cpu_relax(); printk("."); } signature=(inw(base+0x4)) & 0xff; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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