ARM: pm: ensure our temporary page table entry is removed from the TLB
Ensure that our temporary page table entry is flushed from the TLB
before we resume normal operations. This ensures that userspace
won't trip over the stale TLB entry.
Tested-by: Kevin Hilman <khilman@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/suspend.h b/arch/arm/include/asm/suspend.h
index 8d5b446..f8db9d0 100644
--- a/arch/arm/include/asm/suspend.h
+++ b/arch/arm/include/asm/suspend.h
@@ -2,6 +2,7 @@
#define __ASM_ARM_SUSPEND_H
#include <asm/memory.h>
+#include <asm/tlbflush.h>
extern void cpu_resume(void);
@@ -14,6 +15,7 @@
extern void __cpu_suspend(int, long, unsigned long,
void (*)(unsigned long));
__cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, arg, fn);
+ flush_tlb_all();
}
#endif