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dnl #
dnl # 2.6.28 API change
dnl # Added check_disk_size_change() helper function.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CHECK_DISK_SIZE_CHANGE],
[AC_MSG_CHECKING([whether check_disk_size_change() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/fs.h>
], [
check_disk_size_change(NULL, NULL);
], [check_disk_size_change], [fs/block_dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CHECK_DISK_SIZE_CHANGE, 1,
[check_disk_size_change() is available])
], [
AC_MSG_RESULT(no)
])
])
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