[mirror_zfs-debian.git] / config / kernel-blk-rq-sectors.m4

dnl #
dnl # 2.6.31 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_SECTORS], [
	AC_MSG_CHECKING([whether blk_rq_sectors() is available])
	tmp_flags="$EXTRA_KCFLAGS"
	EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
	ZFS_LINUX_TRY_COMPILE([
		#include <linux/blkdev.h>
	],[
		struct request *req = NULL;
		(void) blk_rq_sectors(req);
	],[
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_BLK_RQ_SECTORS, 1,
		          [blk_rq_sectors() is available])
	],[
		AC_MSG_RESULT(no)
	])
	EXTRA_KCFLAGS="$tmp_flags"
])
Commit	Line	Data
c9c0d073 BB	1	dnl #
	2	dnl # 2.6.31 API change
	3	dnl #
	4	AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_SECTORS], [
	5	AC_MSG_CHECKING([whether blk_rq_sectors() is available])
b9c59ec8 PS	6	tmp_flags="$EXTRA_KCFLAGS"
b9c59ec8 PS	7	EXTRA_KCFLAGS="-Wno-unused-but-set-variable"
c9c0d073 BB	8	ZFS_LINUX_TRY_COMPILE([
	9	#include <linux/blkdev.h>
	10	],[
	11	struct request *req = NULL;
	12	(void) blk_rq_sectors(req);
	13	],[
	14	AC_MSG_RESULT(yes)
	15	AC_DEFINE(HAVE_BLK_RQ_SECTORS, 1,
	16	[blk_rq_sectors() is available])
	17	],[
	18	AC_MSG_RESULT(no)
	19	])
b9c59ec8	20	EXTRA_KCFLAGS="$tmp_flags"
c9c0d073	21	])