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[PATCH] libata: Fix HPA handling regression 

Restore the support for handling drives that report one sector too many
(ie SCSI not ATA style). This worked before the HPA update but was
removed in that process.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-09-29 04:06:48 -04:00 committed by Jeff Garzik
parent 54174db300
commit 93328e1145
2 changed files with 7 additions and 1 deletions
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7
drivers/ata/libata-core.c
View File

@ -915,7 +915,8 @@ static int ata_read_native_max_address(struct ata_device *dev, u64 *max_sectors)
*max_sectors = ata_tf_to_lba48(&tf);
else
*max_sectors = ata_tf_to_lba(&tf);
if (dev->horkage & ATA_HORKAGE_HPA_SIZE)
(*max_sectors)--;
return 0;
}
@ -3905,6 +3906,10 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "WDC WD2500JD-00HBB0", "WD-WMAL71490727", ATA_HORKAGE_BROKEN_HPA },
{ "MAXTOR 6L080L4", "A93.0500", ATA_HORKAGE_BROKEN_HPA },
/* Devices which report 1 sector over size HPA */
{ "ST340823A", NULL, ATA_HORKAGE_HPA_SIZE, },
{ "ST320413A", NULL, ATA_HORKAGE_HPA_SIZE, },
/* End Marker */
{ }
};

1
include/linux/libata.h
View File

@ -330,6 +330,7 @@ enum {
ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */
ATA_HORKAGE_BROKEN_HPA = (1 << 4), /* Broken HPA */
ATA_HORKAGE_SKIP_PM = (1 << 5), /* Skip PM operations */
ATA_HORKAGE_HPA_SIZE = (1 << 6), /* native size off by one */
};
enum hsm_task_states {