[PATCH] libata: implement ata_eh_wait()
Implement ata_eh_wait(). On return from this function, it's
guaranteed that the EH which was pending or in progress when the
function was called is complete - including the tailing part of SCSI
EH. This will be used by hotplug and others to synchronize with EH.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index b76ad7d..d56d9e1 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -103,6 +103,7 @@
/* libata-eh.c */
extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
extern void ata_scsi_error(struct Scsi_Host *host);
+extern void ata_port_wait_eh(struct ata_port *ap);
extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
#endif /* __LIBATA_H__ */