#include <linux/sched.h>],
[
extern rwlock_t tasklist_lock __attribute__((weak));
+read_lock(&tasklist_lock);
],
ac_cv_linux_exports_tasklist_lock=yes,
ac_cv_linux_exports_tasklist_lock=no)])
AC_MSG_RESULT($ac_cv_linux_func_i_permission_takes_nameidata)])
+AC_DEFUN([LINUX_IOP_I_PUT_LINK_TAKES_COOKIE], [
+ AC_MSG_CHECKING([whether inode_operations.put_link takes an opaque cookie])
+ AC_CACHE_VAL([ac_cv_linux_func_i_put_link_takes_cookie], [
+ AC_TRY_KBUILD(
+[#include <linux/fs.h>
+#include <linux/namei.h>],
+[struct inode _inode;
+struct dentry _dentry;
+struct nameidata _nameidata;
+void *cookie;
+(void)_inode.i_op->put_link(&_dentry, &_nameidata, cookie);],
+ ac_cv_linux_func_i_put_link_takes_cookie=yes,
+ ac_cv_linux_func_i_put_link_takes_cookie=no)])
+ AC_MSG_RESULT($ac_cv_linux_func_i_put_link_takes_cookie)])
+
+
AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA], [
AC_MSG_CHECKING([whether dentry_operations.d_revalidate takes a nameidata])
AC_CACHE_VAL([ac_cv_linux_func_d_revalidate_takes_nameidata], [