From: WANG Cong <xiyou.wangcong@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Recursive deactivation of local bottom halves
Date: Wed, 26 Jan 2011 06:20:10 +0000 (UTC) [thread overview]
Message-ID: <ihoeep$kmn$4@dough.gmane.org> (raw)
In-Reply-To: 201101251405.18157.emil.langrock@gmx.de
On Tue, 25 Jan 2011 14:05:14 +0100, Emil Langrock wrote:
...
> ...
> local_bh_disable();
> ....
> local_bh_disable();
> ...
> local_bh_enable();
> ....
> local_bh_enable();
> ....
...
>
> Can somebody tell me if that is legal or not (on smp and uniprocessor)?
> And maybe can show me the related source code why is it may or may not
> be legal?
>
>From what you show to us, it is legal, as long as local_bh_disable()/
local_bh_enable() are always paired, it is fine to call them nestedly.
prev parent reply other threads:[~2011-01-26 6:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-25 13:05 Recursive deactivation of local bottom halves Emil Langrock
2011-01-25 13:42 ` Thomas Gleixner
2011-01-26 6:20 ` WANG Cong [this message]
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