linux-kernel - Re: [Fwd: [patch] media video cx23888 driver: ported to new kfifo API]

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Message-Id: <20091218140026.15416033.akpm@linux-foundation.org>
Date:	Fri, 18 Dec 2009 14:00:26 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Stefani Seibold <stefani@...bold.net>
Cc:	Andy Walls <awalls@...ix.net>,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [Fwd: [patch] media video cx23888 driver: ported to new kfifo
 API]

On Fri, 18 Dec 2009 22:57:22 +0100
Stefani Seibold <stefani@...bold.net> wrote:

> But kfifo_len() did not
> requiere a lock in my opinion. It is save to use without a look. 

What do you mean by this?  Safe in general, or safe in this particular driver?

In either case: why?
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