Add the signum system call parameter for documentation purposes only,
and without checking if the passed value is a valid real-time signal.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
#include <asm/cpu_mf.h>
#include <asm/irq.h>
+#include "entry.h"
+
/* empty control block to disable RI by loading it */
struct runtime_instr_cb runtime_instr_empty_cb;
cb->v = 1;
}
-SYSCALL_DEFINE1(s390_runtime_instr, int, command)
+/*
+ * The signum argument is unused. In older kernels it was used to
+ * specify a real-time signal. For backwards compatibility user space
+ * should pass a valid real-time signal number (the signum argument
+ * was checked in older kernels).
+ */
+SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum)
{
struct runtime_instr_cb *cb;