[S390] secure computing arch backend

Enable secure computing on s390 as well.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2 files changed, 22 insertions, 4 deletions

diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h
new file mode 100644
index 000000000000..781a9cf9b002
--- /dev/null
+++ b/arch/s390/include/asm/seccomp.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_S390_SECCOMP_H
+#define _ASM_S390_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read       __NR_read
+#define __NR_seccomp_write      __NR_write
+#define __NR_seccomp_exit       __NR_exit
+#define __NR_seccomp_sigreturn  __NR_sigreturn
+
+#define __NR_seccomp_read_32    __NR_read
+#define __NR_seccomp_write_32   __NR_write
+#define __NR_seccomp_exit_32    __NR_exit
+#define __NR_seccomp_sigreturn_32 __NR_sigreturn
+
+#endif  /* _ASM_S390_SECCOMP_H */
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 461f2abd2e6f..2f86653dda69 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -83,14 +83,15 @@ static inline struct thread_info *current_thread_info(void)
 /*
  * thread information flags bit numbers
  */
-#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
 #define TIF_NOTIFY_RESUME       1       /* callback before returning to user */
 #define TIF_SIGPENDING          2       /* signal pending */
 #define TIF_NEED_RESCHED        3       /* rescheduling necessary */
 #define TIF_RESTART_SVC         4       /* restart svc with new svc number */
-#define TIF_SYSCALL_AUDIT       5       /* syscall auditing active */
 #define TIF_SINGLE_STEP         6       /* deliver sigtrap on return to user */
 #define TIF_MCCK_PENDING        7       /* machine check handling is pending */
+#define TIF_SYSCALL_TRACE       8       /* syscall trace active */
+#define TIF_SYSCALL_AUDIT       9       /* syscall auditing active */
+#define TIF_SECCOMP             10      /* secure computing */
 #define TIF_USEDFPU             16      /* FPU was used by this task this quantum (SMP) */
 #define TIF_POLLING_NRFLAG      17      /* true if poll_idle() is polling 
                                            TIF_NEED_RESCHED */
@@ -99,15 +100,16 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_RESTORE_SIGMASK     20      /* restore signal mask in do_signal() */
 #define TIF_FREEZE              21      /* thread is freezing for suspend */
 
-#define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
 #define _TIF_RESTORE_SIGMASK    (1<<TIF_RESTORE_SIGMASK)
 #define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
 #define _TIF_RESTART_SVC        (1<<TIF_RESTART_SVC)
-#define _TIF_SYSCALL_AUDIT      (1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SINGLE_STEP        (1<<TIF_SINGLE_STEP)
 #define _TIF_MCCK_PENDING       (1<<TIF_MCCK_PENDING)
+#define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
+#define _TIF_SYSCALL_AUDIT      (1<<TIF_SYSCALL_AUDIT)
+#define _TIF_SECCOMP            (1<<TIF_SECCOMP)
 #define _TIF_USEDFPU            (1<<TIF_USEDFPU)
 #define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
 #define _TIF_31BIT              (1<<TIF_31BIT)