Re: Quick question about libata and hdparm

[Mark Lord]

RogÃrio Brito wrote:
> On Apr 19 2009, Mark Lord wrote:
..
> > The -m flag could be done, and I even have code in hdparm to do it,
> > but libata is very buggy with multi-sector I/O, so -m is currently is
> > disallowed.
>
> I would be interested in putting in a new drive in the NAS and testing
> your patch to debug things, if that would help with multi-sector I/O
> getting fixed with libata.
..

It just needs someone to patch libata to sniff out "SET MULTIPLE" commands
from SG_IO, and perform drive revalidation afterwards.  Very similar to
how it currently sniffs "SET FEATURES XFERMODE" commands.

If libata did that, then "hdparm -m" would become safe to use with it.

Cheers
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/