[mirror_zfs-debian.git] / config / kernel-follow-down-one.m4

dnl #
dnl # 2.6.38 API change
dnl # follow_down() renamed follow_down_one().  The original follow_down()
dnl # symbol still exists but will traverse down all the layers.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_DOWN_ONE], [
	AC_MSG_CHECKING([whether follow_down_one() is available])
	ZFS_LINUX_TRY_COMPILE([
		#include <linux/namei.h>
	],[
		struct path *p = NULL;
		follow_down_one(p);
	],[
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_FOLLOW_DOWN_ONE, 1,
		    [follow_down_one() is available])
	],[
		AC_MSG_RESULT(no)
	])
])
Commit	Line	Data
23d56208 AX	1	dnl #
	2	dnl # 2.6.38 API change
	3	dnl # follow_down() renamed follow_down_one(). The original follow_down()
	4	dnl # symbol still exists but will traverse down all the layers.
	5	dnl #
	6	AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_DOWN_ONE], [
	7	AC_MSG_CHECKING([whether follow_down_one() is available])
	8	ZFS_LINUX_TRY_COMPILE([
	9	#include <linux/namei.h>
	10	],[
	11	struct path *p = NULL;
	12	follow_down_one(p);
	13	],[
	14	AC_MSG_RESULT(yes)
	15	AC_DEFINE(HAVE_FOLLOW_DOWN_ONE, 1,
	16	[follow_down_one() is available])
	17	],[
	18	AC_MSG_RESULT(no)
	19	])
	20	])