From: "Alexander E. Patrakov" <patrakov@ums.usu.ru>
To: linux-kernel@vger.kernel.org
Subject: Re: block till hotplug is done?
Date: Wed, 06 Oct 2004 20:19:32 +0600 [thread overview]
Message-ID: <ck0utl$6o0$1@sea.gmane.org> (raw)
In-Reply-To: <1097005927.4953.4.camel@simulacron>
Andreas Jellinghaus wrote:
> Hi,
>
> is there any way to block till all hotplug events are handled/
> the hotplug processes terminated?
>
> For example
> fdisk
> mkfs
> fails, because after fdisk create a partition, and the kernel
> reread the partition table, called hotplug, hotplug called udev
> and udev created the matching /dev file, all of that might be
> too slow and mkfs might fail in the mean time.
You can't wait gracefully (i.e. without sleeping), but you can duplicate
udev's work synchronously:
fdisk
udevstart
mkfs
I don't know if this is supposed to work (Greg KH: please comment on
this). It _will_ work if sysfs entries are guaranteed to be created
before the BLKRRPART ioctl returns.
--
Alexander E. Patrakov
next prev parent reply other threads:[~2004-10-06 14:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-05 19:52 block till hotplug is done? Andreas Jellinghaus
2004-10-05 20:13 ` Harald Dunkel
2004-10-05 20:38 ` Valdis.Kletnieks
2004-10-05 22:16 ` Jon Masters
2004-10-05 22:04 ` Andreas Jellinghaus
2004-10-06 14:19 ` Alexander E. Patrakov [this message]
2004-10-08 14:23 ` Greg KH
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