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Message-Id: <20091103154800.f7f6ef5f.akpm@linux-foundation.org>
Date: Tue, 3 Nov 2009 15:48:00 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: John Kacur <jkacur@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
Peter Zijlstra <peterz@...radead.org>,
Frederic Weisbecker <fweisbec@...il.com>,
Vincent Sanders <vince@...tec.co.uk>,
Jonathan Corbet <corbet@....net>,
Christoph Hellwig <hch@...radead.org>,
Arnd Bergmann <arndbergmann@...glemail.com>,
Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: Subject: [PATCH] rtc: Explicitly set llseek to no_llseek
On Wed, 21 Oct 2009 23:13:26 +0200 (CEST)
John Kacur <jkacur@...hat.com> wrote:
> >From e1b7175258b33da3b0564ef04a0b1956f04f0cc7 Mon Sep 17 00:00:00 2001
> From: John Kacur <jkacur@...hat.com>
> Date: Wed, 21 Oct 2009 23:10:30 +0200
> Subject: [PATCH] rtc: Explicitly set llseek to no_llseek
>
> Now that we've removed the BKL here, lets explicitly set llseek to no_llseek
> since the default llseek is not used here.
>
I don't understand.
>
> diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c
> index 26a47dc..53c524e 100644
> --- a/drivers/char/efirtc.c
> +++ b/drivers/char/efirtc.c
> @@ -285,6 +285,7 @@ static const struct file_operations efi_rtc_fops = {
> .unlocked_ioctl = efi_rtc_ioctl,
> .open = efi_rtc_open,
> .release = efi_rtc_close,
> + .llseek = no_llseek,
> };
>
> static struct miscdevice efi_rtc_dev= {
What has this change to do with the BKL?
--
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