2 dnl # 2.6.27, lookup_bdev() was exported.
3 dnl # 4.4.0-6.21 - x.y on Ubuntu, lookup_bdev() takes 2 arguments.
5 AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV],
6 [AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg])
7 ZFS_LINUX_TRY_COMPILE_SYMBOL([
11 ], [lookup_bdev], [fs/block_dev.c], [
13 AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1, [lookup_bdev() wants 1 arg])
16 AC_MSG_CHECKING([whether lookup_bdev() wants 2 args])
17 ZFS_LINUX_TRY_COMPILE_SYMBOL([
20 lookup_bdev(NULL, FMODE_READ);
21 ], [lookup_bdev], [fs/block_dev.c], [
23 AC_DEFINE(HAVE_2ARGS_LOOKUP_BDEV, 1,
24 [lookup_bdev() wants 2 args])