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-rw-r--r--arch/s390/include/asm/processor.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 1c4fe129486d..073e18bc1676 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -203,6 +203,14 @@ unsigned long get_wchan(struct task_struct *p);
/* Has task runtime instrumentation enabled ? */
#define is_ri_task(tsk) (!!(tsk)->thread.ri_cb)
+static inline unsigned long current_stack_pointer(void)
+{
+ unsigned long sp;
+
+ asm volatile("la %0,0(15)" : "=a" (sp));
+ return sp;
+}
+
static inline unsigned short stap(void)
{
unsigned short cpu_address;