[lkml]   [2010]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 8/8] libata: implement on-demand HPA unlocking
    From: Tejun Heo <>
    Date: Sat, 15 May 2010 20:09:34 +0200

    > 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 <>

    Acked-by: David S. Miller <>

     \ /
      Last update: 2010-05-16 09:21    [W:0.021 / U:5.132 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site