From: Cornelia Huck <cornelia.huck@de.ibm.com>
To: Ming Lei <tom.leiming@gmail.com>
Cc: kay.sievers@vrfy.org, greg@kroah.com, arjan@infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] driver core: remove polling for driver_probe_done(v2)
Date: Fri, 30 Jan 2009 11:30:43 +0100 [thread overview]
Message-ID: <20090130113043.72fd0f55@gondolin> (raw)
In-Reply-To: <d82e647a0901300217s73a6a295sa61232bac8c95115@mail.gmail.com>
On Fri, 30 Jan 2009 18:17:36 +0800,
Ming Lei <tom.leiming@gmail.com> wrote:
> If probing done does not mean the device is available, this patch should be
> ignored or fixed further.
>
> But polling is really not good, is there a approach to avoid the polling for
> appearence of the root device?
I think the parts of your patch that replace polling for
driver_probe_done() with waiting on the waitqueue are fine. The
problematic part is the rootwait special case, where polling seems
unavoidable afaics.
next prev parent reply other threads:[~2009-01-30 10:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-30 2:31 [PATCH] driver core: remove polling for driver_probe_done(v2) tom.leiming
2009-01-30 5:04 ` Arjan van de Ven
2009-01-30 9:59 ` Ming Lei
2009-01-30 10:05 ` Cornelia Huck
2009-01-30 10:17 ` Ming Lei
2009-01-30 10:30 ` Cornelia Huck [this message]
2009-01-30 10:51 ` Ming Lei
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