From: "James Yu" <cyu021@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: jiffies doesn't increase while doing mdelay() ?
Date: Thu, 30 Mar 2006 13:52:04 +0800 [thread overview]
Message-ID: <60bb95410603292152l7597259dx28eaec77ebc5dfdf@mail.gmail.com> (raw)
In-Reply-To: <60bb95410603292150r6448596clbef348e1bededdaf@mail.gmail.com>
Dear all,
I am doing the following in a kernel thread :
===== code segment=====
prink("before mdelay:%d, ", jiffies);
mdelay(300); // delay 300ms
printk("after mdelay:%d\n", jiffies);
===== code segment=====
However, jiffies before and after doing mdelay are the same!!!
Can someone please explain why jiffies doesn't change ?
Cheers,
--
James
cyu021@gmail.com
next parent reply other threads:[~2006-03-30 5:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <60bb95410603292150r6448596clbef348e1bededdaf@mail.gmail.com>
2006-03-30 5:52 ` James Yu [this message]
2006-03-30 13:23 ` Arjan van de Ven
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