[mirror_zfs.git] / config / kernel-blkdev-reread-part.m4

dnl #
dnl # 4.1 API, exported blkdev_reread_part() symbol, backported to the
dnl # 3.10.0 CentOS 7.x enterprise kernels.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_REREAD_PART], [
	AC_MSG_CHECKING([whether blkdev_reread_part() is available])
	ZFS_LINUX_TRY_COMPILE([
		#include <linux/fs.h>
	], [
		struct block_device *bdev = NULL;
		int error;

		error = blkdev_reread_part(bdev);
	], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_BLKDEV_REREAD_PART, 1,
		    [blkdev_reread_part() is available])
	], [
		AC_MSG_RESULT(no)
	])
])
Commit	Line	Data
d441e85d BB	1	dnl #
	2	dnl # 4.1 API, exported blkdev_reread_part() symbol, backported to the
	3	dnl # 3.10.0 CentOS 7.x enterprise kernels.
	4	dnl #
	5	AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_REREAD_PART], [
	6	AC_MSG_CHECKING([whether blkdev_reread_part() is available])
	7	ZFS_LINUX_TRY_COMPILE([
	8	#include <linux/fs.h>
	9	], [
	10	struct block_device *bdev = NULL;
	11	int error;
	12
	13	error = blkdev_reread_part(bdev);
	14	], [
	15	AC_MSG_RESULT(yes)
	16	AC_DEFINE(HAVE_BLKDEV_REREAD_PART, 1,
	17	[blkdev_reread_part() is available])
	18	], [
	19	AC_MSG_RESULT(no)
	20	])
	21	])