libata-link: implement ata_link_abort()
Implement ata_link_abort().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 733aa76..eb4c059 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -719,19 +719,7 @@
DPRINTK("port EH scheduled\n");
}
-/**
- * ata_port_abort - abort all qc's on the port
- * @ap: ATA port to abort qc's for
- *
- * Abort all active qc's of @ap and schedule EH.
- *
- * LOCKING:
- * spin_lock_irqsave(host lock)
- *
- * RETURNS:
- * Number of aborted qc's.
- */
-int ata_port_abort(struct ata_port *ap)
+static int ata_do_link_abort(struct ata_port *ap, struct ata_link *link)
{
int tag, nr_aborted = 0;
@@ -743,7 +731,7 @@
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag);
- if (qc) {
+ if (qc && (!link || qc->dev->link == link)) {
qc->flags |= ATA_QCFLAG_FAILED;
ata_qc_complete(qc);
nr_aborted++;
@@ -757,6 +745,40 @@
}
/**
+ * ata_link_abort - abort all qc's on the link
+ * @link: ATA link to abort qc's for
+ *
+ * Abort all active qc's active on @link and schedule EH.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ *
+ * RETURNS:
+ * Number of aborted qc's.
+ */
+int ata_link_abort(struct ata_link *link)
+{
+ return ata_do_link_abort(link->ap, link);
+}
+
+/**
+ * ata_port_abort - abort all qc's on the port
+ * @ap: ATA port to abort qc's for
+ *
+ * Abort all active qc's of @ap and schedule EH.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host_set lock)
+ *
+ * RETURNS:
+ * Number of aborted qc's.
+ */
+int ata_port_abort(struct ata_port *ap)
+{
+ return ata_do_link_abort(ap, NULL);
+}
+
+/**
* __ata_port_freeze - freeze port
* @ap: ATA port to freeze
*