Source: MontaVista Software, Inc.

Type: Defect Fix 
Description:
CONFIG_FUTEX is an option but kernel/exit.c and fs/dcache.c refer to functions in kernel/futux.c unconditionally.  This patch ties those request off and allows a build with CONFIG_FUTEX  "not set".

Signed-off-by: George Anzinger <george@mvista.com>

 include/linux/futex.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletion(-)

Index: linux-2.6.14-rc/include/linux/futex.h
===================================================================
--- linux-2.6.14-rc.orig/include/linux/futex.h
+++ linux-2.6.14-rc/include/linux/futex.h
@@ -35,9 +35,13 @@
 long do_futex(unsigned long uaddr, int op, int val,
 		unsigned long timeout, unsigned long uaddr2, int val2,
 		int val3);
-
+#ifdef CONFIG_FUTEX
 extern void futex_free_robust_list(struct inode *inode);
 extern void exit_futex(struct task_struct *tsk);
+#else
+#define futex_free_robust_list(a)
+#define exit_futex(b)
+#endif
 static inline void futex_init_inode(struct inode *inode)
 {
 	INIT_LIST_HEAD(&inode->i_data.robust_list);