xref: /freebsd/sys/contrib/openzfs/config/kernel-sched.m4 (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1dnl #
2dnl # 3.9 API change,
3dnl # Moved things from linux/sched.h to linux/sched/rt.h
4dnl #
5AC_DEFUN([ZFS_AC_KERNEL_SRC_SCHED_RT_HEADER], [
6	ZFS_LINUX_TEST_SRC([sched_rt_header], [
7		#include <linux/sched.h>
8		#include <linux/sched/rt.h>
9	],[
10		return 0;
11	])
12])
13
14AC_DEFUN([ZFS_AC_KERNEL_SCHED_RT_HEADER], [
15	AC_MSG_CHECKING([whether header linux/sched/rt.h exists])
16	ZFS_LINUX_TEST_RESULT([sched_rt_header], [
17		AC_MSG_RESULT(yes)
18	],[
19		ZFS_LINUX_TEST_ERROR([sched_rt_header])
20	])
21])
22
23dnl #
24dnl # 4.11 API change,
25dnl # Moved things from linux/sched.h to linux/sched/signal.h
26dnl #
27AC_DEFUN([ZFS_AC_KERNEL_SRC_SCHED_SIGNAL_HEADER], [
28	ZFS_LINUX_TEST_SRC([sched_signal_header], [
29		#include <linux/sched.h>
30		#include <linux/sched/signal.h>
31	],[
32		return 0;
33	])
34])
35
36AC_DEFUN([ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER], [
37	AC_MSG_CHECKING([whether header linux/sched/signal.h exists])
38	ZFS_LINUX_TEST_RESULT([sched_signal_header], [
39		AC_DEFINE(HAVE_SCHED_SIGNAL_HEADER, 1,
40		    [linux/sched/signal.h exists])
41		AC_MSG_RESULT(yes)
42	],[
43		AC_MSG_RESULT(no)
44	])
45])
46
47dnl #
48dnl # 3.19 API change
49dnl # The io_schedule_timeout() function is present in all 2.6.32 kernels
50dnl # but it was not exported until Linux 3.19.  The RHEL 7.x kernels which
51dnl # are based on a 3.10 kernel do export this symbol.
52dnl #
53AC_DEFUN([ZFS_AC_KERNEL_SRC_IO_SCHEDULE_TIMEOUT], [
54	ZFS_LINUX_TEST_SRC([io_schedule_timeout], [
55		#include <linux/sched.h>
56	], [
57		(void) io_schedule_timeout(1);
58	])
59])
60
61AC_DEFUN([ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT], [
62	AC_MSG_CHECKING([whether io_schedule_timeout() is available])
63	ZFS_LINUX_TEST_RESULT_SYMBOL([io_schedule_timeout],
64	[io_schedule_timeout], [], [
65		AC_MSG_RESULT(yes)
66		AC_DEFINE(HAVE_IO_SCHEDULE_TIMEOUT, 1, [yes])
67	],[
68		AC_MSG_RESULT(no)
69	])
70])
71
72AC_DEFUN([ZFS_AC_KERNEL_SRC_SCHED], [
73	ZFS_AC_KERNEL_SRC_SCHED_RT_HEADER
74	ZFS_AC_KERNEL_SRC_SCHED_SIGNAL_HEADER
75	ZFS_AC_KERNEL_SRC_IO_SCHEDULE_TIMEOUT
76])
77
78AC_DEFUN([ZFS_AC_KERNEL_SCHED], [
79	ZFS_AC_KERNEL_SCHED_RT_HEADER
80	ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER
81	ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT
82])
83