config/kernel-file-dentry.m4

   1 dnl #
   2 dnl # 4.1 API change
   3 dnl # struct access file->f_path.dentry was replaced by accessor function
   4 dnl # since fix torvalds/linux@4bacc9c9234c ("overlayfs: Make f_path always
   5 dnl # point to the overlay and f_inode to the underlay").
   6 dnl #
   7 AC_DEFUN([ZFS_AC_KERNEL_SRC_FILE_DENTRY], [
   8         ZFS_LINUX_TEST_SRC([file_dentry], [
   9                 #include <linux/fs.h>
  10         ],[
  11                 struct file *f = NULL;
  12                 file_dentry(f);
  13         ])
  14 ])
  15
  16 AC_DEFUN([ZFS_AC_KERNEL_FILE_DENTRY], [
  17         AC_MSG_CHECKING([whether file_dentry() is available])
  18         ZFS_LINUX_TEST_RESULT([file_dentry], [
  19                 AC_MSG_RESULT(yes)
  20                 AC_DEFINE(HAVE_FILE_DENTRY, 1, [file_dentry() is available])
  21         ],[
  22                 AC_MSG_RESULT(no)
  23         ])
  24 ])