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AC_DEFUN([ZFS_AC_KERNEL_SRC_SETATTR_PREPARE], [
dnl #
dnl # 4.9 API change
dnl # The inode_change_ok() function has been renamed setattr_prepare()
dnl # and updated to take a dentry rather than an inode.
dnl #
ZFS_LINUX_TEST_SRC([setattr_prepare], [
#include <linux/fs.h>
], [
struct dentry *dentry = NULL;
struct iattr *attr = NULL;
int error __attribute__ ((unused)) =
setattr_prepare(dentry, attr);
])
dnl #
dnl # 5.12 API change
dnl # The setattr_prepare() function has been changed to accept a new argument
dnl # for struct user_namespace*
dnl #
ZFS_LINUX_TEST_SRC([setattr_prepare_userns], [
#include <linux/fs.h>
], [
struct dentry *dentry = NULL;
struct iattr *attr = NULL;
struct user_namespace *userns = NULL;
int error __attribute__ ((unused)) =
setattr_prepare(userns, dentry, attr);
])
])
AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE], [
AC_MSG_CHECKING([whether setattr_prepare() is available and accepts struct user_namespace*])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare_userns],
[setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE_USERNS, 1,
[setattr_prepare() accepts user_namespace])
], [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether setattr_prepare() is available, doesn't accept user_namespace])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
[setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE_NO_USERNS, 1,
[setattr_prepare() is available, doesn't accept user_namespace])
], [
AC_MSG_RESULT(no)
])
])
])
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