[PATCH] swsusp fails to suspend if CONFIG_DEBUG_PAGEALLOC is also enabled

swsusp low-level assembly requires PSE (4mb pages for kernel) and
DEBUG_PAGEALLOC disables that capability.

Tell people what went wrong, some people seen same problem on VIA cpus...
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-i386/suspend.h

@@ -10,10 +10,12 @@ static inline int
 arch_prepare_suspend(void)
 {
 	/* If you want to make non-PSE machine work, turn off paging
-           in do_magic. swsusp_pg_dir should have identity mapping, so
+           in swsusp_arch_suspend. swsusp_pg_dir should have identity mapping, so
            it could work...  */
-	if (!cpu_has_pse)
+	if (!cpu_has_pse) {
+		printk(KERN_ERR "PSE is required for swsusp.\n");
 		return -EPERM;
+	}
 	return 0;
 }