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

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Date:	Mon, 11 Jun 2007 20:09:28 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: libata passthru: support PIO multi commands

Alan Cox wrote:
>> +	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 ?

Intelligence of the user with privs?


> 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 ?

Is that English?  Can you be more specific and more clear?

	Jeff


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