Re: [PATCH] sas_ata: satisfy libata qc function locking requirements

[Jeff Garzik <jeff@garzik.org>]

Darrick J. Wong wrote:
> ata_qc_complete and ata_sas_queuecmd require that the port lock be held
> when they are called.  sas_ata doesn't do this, leading to BUG messages
> about qc tags newly allocated qc tags already being in use.  This patch
> fixes the locking, which should clean up the rest of those messages.
>
> So far I've tested this against an IBM x206m with two SATA disks with no
> BUG messages and no other signs of things going wrong, and the machine
> finally passed the pounder stress test.  The patch is against jejb's
> aic94xx-sas tree.
>
> --
>
> Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>

heh, yeah, proper locking helps :)

Glad to hear the progress.  Adaptec just sent me a cable that will allow 
me to use my Razor card as a SATA controller, so I can finally start 
testing that.

	Jeff



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