linux-kernel - Re: [take12 3/3] kevent: Timer notifications.

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Message-ID: <20060821120934.GA13399@2ka.mipt.ru>
Date:	Mon, 21 Aug 2006 16:09:34 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Ulrich Drepper <drepper@...hat.com>,
	Andrew Morton <akpm@...l.org>, netdev <netdev@...r.kernel.org>,
	Zach Brown <zach.brown@...cle.com>, tglx@...utronix.de
Subject: Re: [take12 3/3] kevent: Timer notifications.

On Mon, Aug 21, 2006 at 12:12:39PM +0100, Christoph Hellwig (hch@...radead.org) wrote:
> > +static int __init kevent_init_timer(void)
> > +{
> > +	struct kevent_callbacks tc = {
> > +		.callback = &kevent_timer_callback, 
> > +		.enqueue = &kevent_timer_enqueue, 
> > +		.dequeue = &kevent_timer_dequeue};
> 
> I think this should be static, and the normal style to write it would be:
> 
> static struct kevent_callbacks tc = {
> 	.callback	= kevent_timer_callback,
> 	.enqueue	= kevent_timer_enqueue,
> 	.dequeue	= kevent_timer_dequeue,
> };
> 
> also please consider makring all the kevent_callbacks structs const
> to avoid false cacheline sharing and accidental modification, similar
> to what we did to various other operation vectors.

Actually I do not think it should be static, since it is only used for
initialization and it's members are copied into main structure.

-- 
	Evgeniy Polyakov
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