[mirror_zfs.git] / config / kernel-current-time.m4

dnl #
dnl # 4.9, current_time() added
dnl # 4.18, return type changed from timespec to timespec64
dnl #
dnl # Note that we don't care about the return type in this check. If we have
dnl # to implement a fallback, we'll know we're <4.9, which was timespec.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CURRENT_TIME], [
	ZFS_LINUX_TEST_SRC([current_time], [
		#include <linux/fs.h>
	], [
		struct inode ip __attribute__ ((unused));
		(void) current_time(&ip);
	])
])

AC_DEFUN([ZFS_AC_KERNEL_CURRENT_TIME], [
	AC_MSG_CHECKING([whether current_time() exists])
	ZFS_LINUX_TEST_RESULT_SYMBOL([current_time],
	    [current_time], [fs/inode.c], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_CURRENT_TIME, 1, [current_time() exists])
	], [
		AC_MSG_RESULT(no)
	])
])
Commit	Line	Data
2946a1a1 BB	1	dnl #
2946a1a1 BB	2	dnl # 4.9, current_time() added
6413c95f	3	dnl # 4.18, return type changed from timespec to timespec64
2946a1a1	4	dnl #
00f40961 RN	5	dnl # Note that we don't care about the return type in this check. If we have
	6	dnl # to implement a fallback, we'll know we're <4.9, which was timespec.
	7	dnl #
608f8749 BB	8	AC_DEFUN([ZFS_AC_KERNEL_SRC_CURRENT_TIME], [
608f8749 BB	9	ZFS_LINUX_TEST_SRC([current_time], [
2946a1a1 BB	10	#include <linux/fs.h>
2946a1a1 BB	11	], [
6413c95f	12	struct inode ip __attribute__ ((unused));
00f40961	13	(void) current_time(&ip);
608f8749 BB	14	])
	15	])
	16
	17	AC_DEFUN([ZFS_AC_KERNEL_CURRENT_TIME], [
	18	AC_MSG_CHECKING([whether current_time() exists])
	19	ZFS_LINUX_TEST_RESULT_SYMBOL([current_time],
	20	[current_time], [fs/inode.c], [
2946a1a1 BB	21	AC_MSG_RESULT(yes)
	22	AC_DEFINE(HAVE_CURRENT_TIME, 1, [current_time() exists])
	23	], [
	24	AC_MSG_RESULT(no)
	25	])
	26	])