linux-kernel - Re: [PATCH] driver: ip27-rtc - convert ioctl to unlocked

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Message-ID: <aa79d98a0801131325l5cd5130fld21f5d475f49e419@mail.gmail.com>
Date:	Mon, 14 Jan 2008 00:25:28 +0300
From:	"Cyrill Gorcunov" <gorcunov@...il.com>
To:	"Alexey Dobriyan" <adobriyan@...il.com>
Cc:	"Paul Gortmaker" <p_gortmaker@...oo.com>,
	LKML <linux-kernel@...r.kernel.org>, "Andi Kleen" <ak@...e.de>
Subject: Re: [PATCH] driver: ip27-rtc - convert ioctl to unlocked_ioctl

Thanks, Alexey for review, i'll make it updated tomorrow. (sorry for top-post)

On 1/14/08, Alexey Dobriyan <adobriyan@...il.com> wrote:
> On Sun, Jan 13, 2008 at 11:32:23PM +0300, Cyrill Gorcunov wrote:
> > This patch converts ioctl call to unlocked_ioctl form with
> > explicit big-kernel-lock. Also it makes a bit of cleanup
> > converting miscdevice structure initialization to C99 form.
> >
> > Signed-off-by: Cyrill Gorcunov <gorcunov@...il.com>
> > ---
> >
> > Any comments are welcome.
> > This is untested code - i've no such chip on my laptop.
> >
> > Andi, i think we could use mutex to eliminate BKL, but not sure.
>
> Looks like it can be dropped here. All usage of rtc-> is done under
> rtc_lock. Every other variable there is thread-local.
>
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