Re: libata and pm

[Jeff Garzik]

Prakash K. Cheemplavam wrote:
> Hi,
>
> I wonder whether libata can easily be made compatible with swsup or pmdisk.
>
> Currently my tries stop with the message:
>
> PM: Preparing system for suspend
> Stopping tasks: 
> =================================================exiting...========
>  stopping tasks failed (1 tasks remaining)
> Restarting tasks...<6> Strange, katad-1 not stopped
>  done
>
>
> I think that katad belongs to libata.

I'm curious if this [completely untested] patch works?  :)

	Jeff


===== drivers/scsi/libata-core.c 1.7 vs edited =====
--- 1.7/drivers/scsi/libata-core.c	Mon Nov 24 11:19:30 2003
+++ edited/drivers/scsi/libata-core.c	Sun Nov 30 11:01:26 2003
@@ -2567,6 +2567,9 @@
 
 		timeout = ata_thread_iter(ap);
 
+		if (current->flags & PF_FREEZE)
+			refrigerator(PF_IOTHREAD);
+
                 if (signal_pending (current))
                         flush_signals(current);