1AC_DEFUN([ZFS_AC_KERNEL_SRC_SETATTR_PREPARE], [
2	dnl #
3	dnl # 4.9 API change
4	dnl # The inode_change_ok() function has been renamed setattr_prepare()
5	dnl # and updated to take a dentry rather than an inode.
6	dnl #
7	ZFS_LINUX_TEST_SRC([setattr_prepare], [
8		#include <linux/fs.h>
9	], [
10		struct dentry *dentry = NULL;
11		struct iattr *attr = NULL;
12		int error __attribute__ ((unused)) =
13			setattr_prepare(dentry, attr);
14	])
15
16	dnl #
17	dnl # 5.12 API change
18	dnl # The setattr_prepare() function has been changed to accept a new argument
19	dnl # for struct user_namespace*
20	dnl #
21	ZFS_LINUX_TEST_SRC([setattr_prepare_userns], [
22		#include <linux/fs.h>
23	], [
24		struct dentry *dentry = NULL;
25		struct iattr *attr = NULL;
26		struct user_namespace *userns = NULL;
27		int error __attribute__ ((unused)) =
28			setattr_prepare(userns, dentry, attr);
29	])
30])
31
32AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE], [
33	AC_MSG_CHECKING([whether setattr_prepare() is available and accepts struct user_namespace*])
34	ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare_userns],
35	    [setattr_prepare], [fs/attr.c], [
36		AC_MSG_RESULT(yes)
37		AC_DEFINE(HAVE_SETATTR_PREPARE_USERNS, 1,
38		    [setattr_prepare() accepts user_namespace])
39	], [
40		AC_MSG_RESULT(no)
41
42		AC_MSG_CHECKING([whether setattr_prepare() is available, doesn't accept user_namespace])
43		ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
44			[setattr_prepare], [fs/attr.c], [
45			AC_MSG_RESULT(yes)
46			AC_DEFINE(HAVE_SETATTR_PREPARE_NO_USERNS, 1,
47				[setattr_prepare() is available, doesn't accept user_namespace])
48		], [
49			AC_MSG_RESULT(no)
50		])
51	])
52])
53