[define if your iops.lookup takes an unsigned int argument],
[-Werror])
])
+
+
+AC_DEFUN([LINUX_D_INVALIDATE_IS_VOID], [
+ AC_CHECK_LINUX_BUILD([whether d_invalidate returns void],
+ [ac_cv_linux_func_d_invalidate_returns_void],
+ [#include <linux/fs.h>],
+ [
+ void d_invalidate(struct dentry *);
+ ],
+ [D_INVALIDATE_IS_VOID],
+ [define if your d_invalidate returns void],
+ [])
+])