[PATCH] Make pmdisk suspend more reliable

[Tony Lindgren]

Hi Patrick & all,

Here's a little patch to make pmdisk suspend to disk work on my old
laptop. Basically at least the PMDISK_SIG never got to the disk, and
finding the suspend image would fail without this patch. The patch is
against linux-2.6.0-test7.

Pls cc me on any replies, I'm not on the list right now.

Regards,

Tony


--- linux-2.6.0-test7/kernel/power/pmdisk.c-orig	2003-10-12 18:35:58.000000000 +0300
+++ linux-2.6.0-test7/kernel/power/pmdisk.c	2003-10-12 19:00:32.000000000 +0300
@@ -35,6 +35,7 @@
 
 
 extern int pmdisk_arch_suspend(int resume);
+extern int wakeup_bdflush(long nr_pages);
 
 #define __ADDRESS(x)  ((unsigned long) phys_to_virt(x))
 #define ADDRESS(x) __ADDRESS((x) << PAGE_SHIFT)
@@ -372,6 +373,9 @@
 		goto FreePagedir;
 
 	error = mark_swapfiles(prev);
+
+	/* Make sure the data gets to disk */
+	wakeup_bdflush(0);
  Done:
 	return error;
  FreePagedir: