config/kernel-vfs-iterate.m4

   1 dnl #
   2 dnl # 3.11 API change
   3 dnl #
   4 AC_DEFUN([ZFS_AC_KERNEL_VFS_ITERATE], [
   5         AC_MSG_CHECKING([whether fops->iterate() is available])
   6         ZFS_LINUX_TRY_COMPILE([
   7                 #include <linux/fs.h>
   8                 int iterate(struct file *filp, struct dir_context * context)
   9                     { return 0; }
  10
  11                 static const struct file_operations fops
  12                     __attribute__ ((unused)) = {
  13                         .iterate         = iterate,
  14                 };
  15         ],[
  16         ],[
  17                 AC_MSG_RESULT(yes)
  18                 AC_DEFINE(HAVE_VFS_ITERATE, 1,
  19                           [fops->iterate() is available])
  20         ],[
  21                 AC_MSG_RESULT(no)
  22
  23                 AC_MSG_CHECKING([whether fops->readdir() is available])
  24                 ZFS_LINUX_TRY_COMPILE([
  25                         #include <linux/fs.h>
  26                         int readdir(struct file *filp, void *entry, filldir_t func)
  27                             { return 0; }
  28
  29                         static const struct file_operations fops
  30                             __attribute__ ((unused)) = {
  31                                 .readdir = readdir,
  32                         };
  33                 ],[
  34                 ],[
  35                         AC_MSG_RESULT(yes)
  36                         AC_DEFINE(HAVE_VFS_READDIR, 1,
  37                                   [fops->readdir() is available])
  38                 ],[
  39                         AC_MSG_ERROR(no; file a bug report with ZFSOnLinux)
  40                 ])
  41
  42         ])
  43 ])