linux-kernel - Re: [PATCH] Make prepare_namespace() wait for devices

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Message-Id: <20070524170654.5d674474.akpm@linux-foundation.org>
Date:	Thu, 24 May 2007 17:06:54 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Pierre Ossman <drzeus-list@...eus.cx>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Make prepare_namespace() wait for devices

On Thu, 24 May 2007 14:21:35 +0200
Pierre Ossman <drzeus-list@...eus.cx> wrote:

> +	/* wait for any asynchronous scanning to complete */
> +	if ((ROOT_DEV == 0) && root_wait) {
> +		printk(KERN_INFO "Waiting for root device %s...\n",
> +			saved_root_name);
> +		do {
> +			while (driver_probe_done() != 0)
> +				msleep(100);
> +			ROOT_DEV = name_to_dev_t(saved_root_name);
> +			if (ROOT_DEV == 0)
> +				msleep(100);
> +		} while (ROOT_DEV == 0);
> +	}

This seems overly complex.  Can't we simply do


	while (driver_probe_done() || ROOT_DEV == 0)
		msleep(100);

?
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