linux-kernel - Re: libata passthru: support PIO multi commands

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Date:	Mon, 11 Jun 2007 23:39:17 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	jeff@...zik.org
Subject: Re: libata passthru: support PIO multi commands

> +	if (is_multi_taskfile(tf)) {
> +		unsigned int multi_count = 1 << (cdb[1] >> 5);
> +
> +		/* compare the passed through multi_count
> +		 * with the cached multi_count of libata
> +		 */
> +		if (multi_count != dev->multi_count)
> +			ata_dev_printk(dev, KERN_WARNING,
> +				       "invalid multi_count %u ignored\n",
> +				       multi_count);
> +	}

What limits log spamming here ? Also shouldn't we error this
situation not proceed and hope that enough data was supplied not
to leave us stuck half way through a command having made a nasty
mess on disk ?
	
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