[PATCH] swsusp: Support i386 systems with PAE or without PSE

Make swsusp support i386 systems with PAE or without PSE.

This is done by creating temporary page tables located in resume-safe page
frames before the suspend image is restored in the same way as x86_64 does
it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <ak@suse.de>
Cc: Dave Jones <davej@redhat.com>
Cc: Nigel Cunningham <ncunningham@linuxmail.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 12 deletions

diff --git a/include/asm-i386/suspend.h b/include/asm-i386/suspend.h
index 08be1e5009d4..c1da5caafaf7 100644
--- a/include/asm-i386/suspend.h
+++ b/include/asm-i386/suspend.h
@@ -6,18 +6,7 @@
 #include <asm/desc.h>
 #include <asm/i387.h>
 
-static inline int
-arch_prepare_suspend(void)
-{
-        /* If you want to make non-PSE machine work, turn off paging
-           in swsusp_arch_suspend. swsusp_pg_dir should have identity mapping, so
-           it could work...  */
-        if (!cpu_has_pse) {
-                printk(KERN_ERR "PSE is required for swsusp.\n");
-                return -EPERM;
-        }
-        return 0;
-}
+static inline int arch_prepare_suspend(void) { return 0; }
 
 /* image of the saved processor state */
 struct saved_context {