linux-kernel - Re: [PATCH 12/13] Add a kerneldoc comment to spin_is

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Date:	Wed, 28 Mar 2012 10:49:57 +0200
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 12/13] Add a kerneldoc comment to spin_is_locked() that
 discourages its usage


> +/**
> + * spin_is_locked() - Check if a spinlock is being held.
> + * @lock: Lock to check.
> + *
> + * This function should normally not be used. Especially using it in
> + * WARN and BUG_ONs is usually incorrect or redundant.
> + * If you want to check if a lock is held in a function
> + * use lockdep_assert_held(). A lot of other usages are racy.
> + */

Maybe add a reference to the section you previously added to spinlock.txt?

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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