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Message-ID: <47A6068D.9020905@panasas.com>
Date:	Sun, 03 Feb 2008 20:23:09 +0200
From:	Benny Halevy <bhalevy@...asas.com>
To:	am kara <kara_am@...oo.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: 

am kara wrote:
> hello,
> 
> If kernel does kmap_atomic(temporary kernel mapping)
> on behalf of a process by a cpu, does the process will
> continue to run and no other process can be scheduled
> to switch it off?(till kunmap_atomic is done)

Effectively, kmap_atomic implementations call pagefault_disable
and that in turn is equivalent to preempt_disable()
so the answer to your question seems to be "yes".

Benny

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