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authorTejun Heo <tj@kernel.org>2008-10-26 15:43:03 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-10-27 23:55:40 -0400
commit90484ebfc96c5dc5c498ed72cf2d370575db9b76 (patch)
tree46ada261a4d318296bcbe08ac724fd32eb014a6d
parente8b3b5e9f54512bfdb7c154da07ec0408cbd6c56 (diff)
libata: clear saved xfer_mode and ncq_enabled on device detach
libata EH saves xfer_mode and ncq_enabled at start to later set DUBIOUS_XFER flag if it has changed. These values need to be cleared on device detach such that hot device swap doesn't accidentally miss DUBIOUS_XFER. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/ata/libata-eh.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index a6a3b1554c4..8077bdf5d30 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1164,6 +1164,7 @@ void ata_eh_detach_dev(struct ata_device *dev)
{
struct ata_link *link = dev->link;
struct ata_port *ap = link->ap;
+ struct ata_eh_context *ehc = &link->eh_context;
unsigned long flags;
ata_dev_disable(dev);
@@ -1177,9 +1178,11 @@ void ata_eh_detach_dev(struct ata_device *dev)
ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG;
}
- /* clear per-dev EH actions */
+ /* clear per-dev EH info */
ata_eh_clear_action(link, dev, &link->eh_info, ATA_EH_PERDEV_MASK);
ata_eh_clear_action(link, dev, &link->eh_context.i, ATA_EH_PERDEV_MASK);
+ ehc->saved_xfer_mode[dev->devno] = 0;
+ ehc->saved_ncq_enabled &= ~(1 << dev->devno);
spin_unlock_irqrestore(ap->lock, flags);
}