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From: "=?big5?B?RWR3YXJkIFNoYW8gXCiq8qp2sOpcKQ==?=" <szg90@cs.ccu.edu.tw>
To: "=?big5?B?RWR3YXJkIFNoYW8gXCiq8qp2sOpcKQ==?=" <szg90@cs.ccu.edu.tw>,
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References: <021b01c23c8d$22becc60$74667b8c@edward>
Subject: Re: a question about __down() in Linux/arch/i386/kernel/semaphore.c
Date: Mon, 5 Aug 2002 22:42:37 +0800
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sorry, i found it!
wake_up_locked(&sem->wait);
but why do we need to wake up the sleepers again?
Thank you very much.

-Edward Shao-

----- Original Message -----
From: "Edward Shao (???v??)" <szg90@cs.ccu.edu.tw>
To: <linux-kernel@vger.kernel.org>
Sent: Monday, August 05, 2002 10:33 PM
Subject: a question about __down() in Linux/arch/i386/kernel/semaphore.c


> Hi,
>
> I have a question about __down() in kernel 2.4.18
> (Linux/arch/i386/kernel/semaphore.c)
> I found the last line of __down() is
> wake_up(&sem->wait);
> but in kernel 2.5.28, i didn't see this line..
> is this line necessary in kernel 2.4.18?
> why?
>
> Thank you very much.
>
> Best Regard!!!
>
> -Edward Shao-
>
>
> -
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