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Date: Sat, 15 May 2010 15:22:29 -0400 From: Jeff Garzik <jeff@...zik.org> To: Tejun Heo <tj@...nel.org> CC: linux-ide@...r.kernel.org, jens.axboe@...cle.com, linux-scsi@...r.kernel.org, James.Bottomley@...e.de, linux-kernel@...r.kernel.org, ben@...adent.org.uk, davem@...emloft.net, bzolnier@...il.com Subject: Re: [PATCH 8/8] libata: implement on-demand HPA unlocking On 05/15/2010 02:09 PM, Tejun Heo wrote: > Implement ata_scsi_unlock_native_capacity() which will be called > through SCSI layer when block layer notices that partitions on a > device extend beyond the end of the device. It requests EH to unlock > HPA, waits for completion and returns the current device capacity. > > This allows libata to unlock HPA on demand instead of having to decide > whether to unlock upfront. Unlocking on demand is safer than > unlocking by upfront because some BIOSes write private data to the > area beyond HPA limit. This was suggested by Ben Hutchings. > > Signed-off-by: Tejun Heo<tj@...nel.org> > Suggested-by: Ben Hutchings<ben@...adent.org.uk> Acked-by: Jeff Garzik <jgarzik@...hat.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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