[libata] Add host lock to struct ata_port
Prepare for changes required to support SATA devices
attached to SAS HBAs. For these devices we don't want to
use host_set at all, since libata will not be the owner
of struct scsi_host.
Signed-off-by: Brian King <brking@us.ibm.com>
(with slight merge modifications made by...)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 9698949..d86abed 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -752,7 +752,7 @@
if (!ap->ops->error_handler)
return;
- spin_lock_irqsave(&ap->host_set->lock, flags);
+ spin_lock_irqsave(ap->lock, flags);
dev = __ata_scsi_find_dev(ap, sdev);
if (dev && dev->sdev) {
/* SCSI device already in CANCEL state, no need to offline it */
@@ -760,7 +760,7 @@
dev->flags |= ATA_DFLAG_DETACH;
ata_port_schedule_eh(ap);
}
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
+ spin_unlock_irqrestore(ap->lock, flags);
}
/**
@@ -2684,7 +2684,7 @@
ap = ata_shost_to_port(shost);
spin_unlock(shost->host_lock);
- spin_lock(&ap->host_set->lock);
+ spin_lock(ap->lock);
ata_scsi_dump_cdb(ap, cmd);
@@ -2696,7 +2696,7 @@
done(cmd);
}
- spin_unlock(&ap->host_set->lock);
+ spin_unlock(ap->lock);
spin_lock(shost->host_lock);
return rc;
}
@@ -2858,7 +2858,7 @@
* increments reference counts regardless of device state.
*/
mutex_lock(&ap->host->scan_mutex);
- spin_lock_irqsave(&ap->host_set->lock, flags);
+ spin_lock_irqsave(ap->lock, flags);
/* clearing dev->sdev is protected by host_set lock */
sdev = dev->sdev;
@@ -2882,7 +2882,7 @@
}
}
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
+ spin_unlock_irqrestore(ap->lock, flags);
mutex_unlock(&ap->host->scan_mutex);
if (sdev) {
@@ -2926,9 +2926,9 @@
if (!(dev->flags & ATA_DFLAG_DETACHED))
continue;
- spin_lock_irqsave(&ap->host_set->lock, flags);
+ spin_lock_irqsave(ap->lock, flags);
dev->flags &= ~ATA_DFLAG_DETACHED;
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
+ spin_unlock_irqrestore(ap->lock, flags);
ata_scsi_remove_dev(dev);
}
@@ -2981,7 +2981,7 @@
(lun != SCAN_WILD_CARD && lun != 0))
return -EINVAL;
- spin_lock_irqsave(&ap->host_set->lock, flags);
+ spin_lock_irqsave(ap->lock, flags);
if (id == SCAN_WILD_CARD) {
ap->eh_info.probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
@@ -2999,7 +2999,7 @@
if (rc == 0)
ata_port_schedule_eh(ap);
- spin_unlock_irqrestore(&ap->host_set->lock, flags);
+ spin_unlock_irqrestore(ap->lock, flags);
return rc;
}