ac_cv_linux_statfs_takes_dentry=no)])
AC_MSG_RESULT($ac_cv_linux_statfs_takes_dentry)])
+
+AC_DEFUN([LINUX_KEY_TYPE_H_EXISTS], [
+ AC_MSG_CHECKING([for linux/key-type.h existance])
+ AC_CACHE_VAL([ac_cv_linux_key_type_h_exists], [
+ AC_TRY_KBUILD(
+[#include <linux/key-type.h>],
+[return;],
+ ac_cv_linux_key_type_h_exists=yes,
+ ac_cv_linux_key_type_h_exists=no)])
+ AC_MSG_RESULT($ac_cv_linux_key_type_h_exists)
+ if test "x$ac_cv_linux_key_type_h_exists" = "xyes"; then
+ AC_DEFINE([KEY_TYPE_H_EXISTS], 1, [define if linux/key-type.h exists])
+ fi])
+
AC_DEFUN([LINUX_LINUX_KEYRING_SUPPORT], [
AC_MSG_CHECKING([for linux kernel keyring support])
AC_CACHE_VAL([ac_cv_linux_keyring_support], [
AC_TRY_KBUILD(
[#include <linux/rwsem.h>
+#ifdef KEY_TYPE_H_EXISTS
+#include <linux/key-type.h>
+#endif
#include <linux/key.h>
#include <linux/keyctl.h>],
[#ifdef CONFIG_KEYS
ac_cv_linux_fs_struct_fop_has_splice=no)])
AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_splice)])
+AC_DEFUN([LINUX_HAVE_CURRENT_KERNEL_TIME], [
+ AC_MSG_CHECKING([for current_kernel_time()])
+ AC_CACHE_VAL([ac_cv_linux_have_current_kernel_time], [
+ AC_TRY_KBUILD(
+[#include <linux/time.h>],
+[struct timespec s = current_kernel_time();],
+ ac_cv_linux_have_current_kernel_time=yes,
+ ac_cv_linux_have_current_kernel_time=no)])
+ AC_MSG_RESULT($ac_cv_linux_have_current_kernel_time)])
+
+AC_DEFUN([LINUX_KMEM_CACHE_INIT], [
+ AC_MSG_CHECKING([for new kmem_cache init function parameters])
+ AC_CACHE_VAL([ac_cv_linux_kmem_cache_init], [
+ AC_TRY_KBUILD(
+[#include <linux/slab.h>],
+[extern struct kmem_cache *kmem_cache_create(const char *, size_t, size_t,
+ unsigned long,
+ void (*)(struct kmem_cache *, void *));
+return;],
+ ac_cv_linux_kmem_cache_init=yes,
+ ac_cv_linux_kmem_cache_init=no)])
+ AC_MSG_RESULT($ac_cv_linux_kmem_cache_init)])
+
+AC_DEFUN([LINUX_SYSCTL_TABLE_CHECKING], [
+ AC_MSG_CHECKING([for sysctl table checking])
+ AC_CACHE_VAL([ac_cv_linux_sysctl_table_checking], [
+ AC_TRY_KBUILD(
+[#include <linux/sysctl.h>],
+[ extern int sysctl_check_table(int) __attribute__((weak));
+sysctl_check_table(NULL);],
+ ac_cv_linux_sysctl_table_checking=no,
+ ac_cv_linux_sysctl_table_checking=yes)])
+AC_MSG_RESULT($ac_cv_linux_sysctl_table_checking)])
+