linux-kernel - Re: regd: sleeping in atomic

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Message-ID: <43e72e891003161336t1c2f905w13762dfa49257450@mail.gmail.com>
Date:	Tue, 16 Mar 2010 13:36:38 -0700
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: regd: sleeping in atomic

On Tue, Mar 16, 2010 at 11:42 AM, Jiri Slaby <jirislaby@...il.com> wrote:
> On 03/16/2010 05:18 PM, Luis R. Rodriguez wrote:
>>
>> one iteration of call_crda() which happens during module
>> initialization and from what I gather I don't think the kernel is
>> happy when you mutex_lock on load routines, please correct my foggy
>> memory if I am mistaken.
>
> No, using mutex in init/exit module routines is fine. Where do you have the
> information from?

A snag I hit when trying this a while ago on reg.c. I suppose the real
issue could have been something else.

> There might be problems only with request_module,
> flush_scheduled_work or similar.

OK -- then in that case I think using a mutex would work here, unless
John spots any other issues.

  Luis
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