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Date: Fri, 3 Oct 2014 10:09:15 +0200
From: Edward Tomasz Napierala <trasz@FreeBSD.org>
To: Gleb Smirnoff <glebius@FreeBSD.org>
Subject: Re: svn commit: r272403 - head/sys/fs/autofs
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On 1002T1435, Gleb Smirnoff wrote:
> On Thu, Oct 02, 2014 at 10:31:32AM +0000, Edward Tomasz Napierala wrote:
> E> Author: trasz
> E> Date: Thu Oct  2 10:31:32 2014
> E> New Revision: 272403
> E> URL: https://svnweb.freebsd.org/changeset/base/272403
> E> 
> E> Log:
> E>   Make autofs timeout handling use timeout task instead of callout;
> E>   that's because the handler can sleep on sx lock.
> 
> How long can it sleep? AFAIU, the taskqueue_thread is used by other
> subsystems.

For the duration of M_WAITOK allocation.