linux-kernel - Re: kobject_set_name() uses GFP

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Message-ID: <ac3eb2510905060617l708a5024p8f67a90d447a3cae@mail.gmail.com>
Date:	Wed, 6 May 2009 15:17:52 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Marcel Holtmann <marcel@...tmann.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: kobject_set_name() uses GFP_KERNEL

On Tue, May 5, 2009 at 18:21, Marcel Holtmann <marcel@...tmann.org> wrote:
> all the users of kobject_set_name() which includes dev_set_name() are
> allocating their memory for the device name with GFP_KERNEL. It is not a
> big deal since device_add() does the same. However it is not obvious and
> I ran into an issue in the Bluetooth stack where I was setting the
> device name from a context that can't sleep. If this behavior is on
> purpose, we better add an extra comment in the documentation.

It's the entire driver core and kobjects which use GFP_KERNEL, so it
just "happened" for that function too, I guess.

If it helps to documents that, where should it be added? Maybe you can
just send a patch?

Thanks,
Kay
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