config/kernel-kuid-helpers.m4

   1 dnl #
   2 dnl # 3.5 API change,
   3 dnl # Since usernamespaces were introduced in kernel version 3.5, it
   4 dnl # became necessary to go through one more level of indirection
   5 dnl # when dealing with uid/gid - namely the kuid type.
   6 dnl #
   7 dnl #
   8 AC_DEFUN([ZFS_AC_KERNEL_SRC_KUID_HELPERS], [
   9         ZFS_LINUX_TEST_SRC([i_uid_read], [
  10                 #include <linux/fs.h>
  11         ],[
  12                 struct inode *ip = NULL;
  13                 (void) i_uid_read(ip);
  14         ])
  15 ])
  16
  17 AC_DEFUN([ZFS_AC_KERNEL_KUID_HELPERS], [
  18         AC_MSG_CHECKING([whether i_(uid|gid)_(read|write) exist])
  19         ZFS_LINUX_TEST_RESULT([i_uid_read], [
  20                 AC_MSG_RESULT(yes)
  21                 AC_DEFINE(HAVE_KUID_HELPERS, 1,
  22                     [i_(uid|gid)_(read|write) exist])
  23         ],[
  24                 AC_MSG_RESULT(no)
  25         ])
  26 ])