[PATCH] auxiliary vector cleanups

The size of auxiliary vector is fixed at 42 in linux/sched.h.  But it isn't
very obvious when looking at linux/elf.h.  This patch adds AT_VECTOR_SIZE
so that we can change it if necessary when a new vector is added.

Because of include file ordering problems, doing this necessitated the
extraction of the AT_* symbols into a standalone header file.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5fb31bede103..b5a22ea80045 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -35,6 +35,8 @@
 #include <linux/topology.h>
 #include <linux/seccomp.h>
 
+#include <linux/auxvec.h>       /* For AT_VECTOR_SIZE */
+
 struct exec_domain;
 
 /*
@@ -261,7 +263,7 @@ struct mm_struct {
         mm_counter_t _rss;
         mm_counter_t _anon_rss;
 
-        unsigned long saved_auxv[42]; /* for /proc/PID/auxv */
+        unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */
 
         unsigned dumpable:2;
         cpumask_t cpu_vm_mask;