linux-kernel - Re: Shrink the held_lock struct by using bitfields.

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Message-Id: <1168800350.32239.13.camel@earth>
Date:	Sun, 14 Jan 2007 19:45:50 +0100
From:	Ingo Molnar <mingo@...hat.com>
To:	Dave Jones <davej@...hat.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>, mingo@...e.hu
Subject: Re: Shrink the held_lock struct by using bitfields.

On Tue, 2007-01-02 at 18:38 -0500, Dave Jones wrote:
> +       unsigned char irq_context:1;
> +       unsigned char trylock:1;
> +       unsigned char read:2;
> +       unsigned char check:1;
> +       unsigned char hardirqs_off:1; 

cool! I totally missed those. I'd even do this for 2.6.20, but it's
probably too late for that.

Acked-by: Ingo Molnar <mingo@...hat.com>

	Ingo

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