[S390] ptrace: dont abuse PT_PTRACED

Nobody except ptrace itself should use task->ptrace or PT_PTRACED
directly, change arch/s390/kernel/traps.c to use the helper.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index c2e42cc65ce7..6e7ad63854c0 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -18,7 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/errno.h>
-#include <linux/ptrace.h>
+#include <linux/tracehook.h>
 #include <linux/timer.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -382,7 +382,7 @@ void __kprobes do_single_step(struct pt_regs *regs)
                                         SIGTRAP) == NOTIFY_STOP){
                 return;
         }
-        if ((current->ptrace & PT_PTRACED) != 0)
+        if (tracehook_consider_fatal_signal(current, SIGTRAP))
                 force_sig(SIGTRAP, current);
 }
 
@@ -483,7 +483,7 @@ static void illegal_op(struct pt_regs * regs, long interruption_code)
                 if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
                         return;
                 if (*((__u16 *) opcode) == S390_BREAKPOINT_U16) {
-                        if (current->ptrace & PT_PTRACED)
+                        if (tracehook_consider_fatal_signal(current, SIGTRAP))
                                 force_sig(SIGTRAP, current);
                         else
                                 signal = SIGILL;