config/kernel-d-prune-aliases.m4

   1 dnl #
   2 dnl # 2.6.12 API change
   3 dnl # d_prune_aliases() helper function available.
   4 dnl #
   5 AC_DEFUN([ZFS_AC_KERNEL_D_PRUNE_ALIASES],
   6         [AC_MSG_CHECKING([whether d_prune_aliases() is available])
   7         ZFS_LINUX_TRY_COMPILE_SYMBOL([
   8                 #include <linux/dcache.h>
   9         ], [
  10                 struct inode *ip = NULL;
  11                 d_prune_aliases(ip);
  12         ], [d_prune_aliases], [fs/dcache.c], [
  13                 AC_MSG_RESULT(yes)
  14                 AC_DEFINE(HAVE_D_PRUNE_ALIASES, 1,
  15                           [d_prune_aliases() is available])
  16         ], [
  17                 AC_MSG_RESULT(no)
  18         ])
  19 ])