kernel-blk-queue-flags.m4

dnl #
dnl # API change
dnl # https://github.com/torvalds/linux/commit/8814ce8
dnl # Introduction of blk_queue_flag_set and blk_queue_flag_clear
dnl #

AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET], [
	AC_MSG_CHECKING([whether blk_queue_flag_set() exists])
	ZFS_LINUX_TRY_COMPILE([
		#include <linux/kernel.h>
		#include <linux/blkdev.h>
	],[
		struct request_queue *q = NULL;
		blk_queue_flag_set(0, q);
	],[
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_BLK_QUEUE_FLAG_SET, 1, [blk_queue_flag_set() exists])
	],[
		AC_MSG_RESULT(no)
	])
])

AC_DEFUN([ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR], [
	AC_MSG_CHECKING([whether blk_queue_flag_clear() exists])
	ZFS_LINUX_TRY_COMPILE([
		#include <linux/kernel.h>
		#include <linux/blkdev.h>
	],[
		struct request_queue *q = NULL;
		blk_queue_flag_clear(0, q);
	],[

		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_BLK_QUEUE_FLAG_CLEAR, 1, [blk_queue_flag_clear() exists])
	],[
		AC_MSG_RESULT(no)
	])
])