[PATCH] Move sighand_cachep to include/signal.h

Move sighand_cachep definitioni to linux/signal.h

The sighand cache is only used in fs/exec.c and kernel/fork.c.  It is defined
in kernel/fork.c but only used in fs/exec.c.

The sighand_cachep is related to signal processing.  So add the definition to
signal.h.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 117135e..1474905 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -241,6 +241,8 @@
 struct pt_regs;
 extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
 
+extern struct kmem_cache *sighand_cachep;
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_SIGNAL_H */