ifdef struct task_struct::security

For those who don't care about CONFIG_SECURITY.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Cc: James Morris <jmorris@namei.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/sched.h

@@ -1044,8 +1044,9 @@ struct task_struct {
 	int (*notifier)(void *priv);
 	void *notifier_data;
 	sigset_t *notifier_mask;
-	
+#ifdef CONFIG_SECURITY
 	void *security;
+#endif
 	struct audit_context *audit_context;
 	seccomp_t seccomp;
 

kernel/fork.c

@@ -1079,7 +1079,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	do_posix_clock_monotonic_gettime(&p->start_time);
 	p->real_start_time = p->start_time;
 	monotonic_to_bootbased(&p->real_start_time);
+#ifdef CONFIG_SECURITY
 	p->security = NULL;
+#endif
 	p->io_context = NULL;
 	p->io_wait = NULL;
 	p->audit_context = NULL;