zfs-builds-mm/zfs-0.8.5/config/kernel-open-bdev-exclusive.m4
2020-10-22 13:48:46 +02:00

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dnl #
dnl # 2.6.28 API change
dnl # open/close_bdev_excl() renamed to open/close_bdev_exclusive()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BDEV_OPEN_EXCLUSIVE], [
ZFS_LINUX_TEST_SRC([open_bdev_exclusive], [
#include <linux/fs.h>
], [
open_bdev_exclusive(NULL, 0, NULL);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BDEV_OPEN_EXCLUSIVE], [
AC_MSG_CHECKING([whether open_bdev_exclusive() is available])
ZFS_LINUX_TEST_RESULT_SYMBOL([open_bdev_exclusive],
[open_bdev_exclusive], [fs/block_dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_OPEN_BDEV_EXCLUSIVE, 1,
[open_bdev_exclusive() is available])
], [
AC_MSG_RESULT(no)
])
])