af712ee7ce9b36a6d0823 parent 68939ce5fc17ee9c03ef6e543d4f82bd9f5583d4 author Tejun Heo 1273946974 +0200 committer Jeff Garzik 1275501010 -0400 libata: implement on-demand HPA unlocking 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 Suggested-by: Ben Hutchings Signed-off-by: Jeff Garzik Åy;