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-rw-r--r--arch/x86/um/asm/processor.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h
index d3ac1cecf0f4..f34c4b2d09f3 100644
--- a/arch/x86/um/asm/processor.h
+++ b/arch/x86/um/asm/processor.h
@@ -10,6 +10,9 @@
# include "processor_64.h"
#endif
+#define ARCH_IS_STACKGROW(address) \
+ (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(&current->thread.regs.regs))
+
#include <asm/processor-generic.h>
#endif
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