+AC_DEFUN([LINUX_EXPORTS_TASKLIST_LOCK], [
+ AC_MSG_CHECKING([for exported tasklist_lock])
+ AC_CACHE_VAL([ac_cv_linux_exports_tasklist_lock], [
+ AC_TRY_KBUILD(
+[
+#include <linux/sched.h>],
+[
+extern rwlock_t tasklist_lock __attribute__((weak));
+read_lock(&tasklist_lock);
+],
+ ac_cv_linux_exports_tasklist_lock=yes,
+ ac_cv_linux_exports_tasklist_lock=no)])
+ AC_MSG_RESULT($ac_cv_linux_exports_tasklist_lock)])
+
+
AC_DEFUN([LINUX_CONFIG_H_EXISTS], [
AC_MSG_CHECKING([for linux/config.h existance])
AC_CACHE_VAL([ac_cv_linux_config_h_exists], [
AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_parent)])
+AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_TGID], [
+ AC_MSG_CHECKING([for tgid in struct task_struct])
+ AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_tgid], [
+ AC_TRY_KBUILD(
+[#include <linux/sched.h>],
+[struct task_struct _tsk;
+printk("%d\n", _tsk.tgid);],
+ ac_cv_linux_sched_struct_task_struct_has_tgid=yes,
+ ac_cv_linux_sched_struct_task_struct_has_tgid=no)])
+ AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_tgid)])
+
+
AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_REAL_PARENT], [
AC_MSG_CHECKING([for real_parent in struct task_struct])
AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_real_parent], [
AC_MSG_RESULT($ac_cv_linux_fs_struct_super_has_alloc_inode)])
+AC_DEFUN([LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG], [
+ AC_MSG_CHECKING([for 3rd argument in posix_lock_file found in new kernels])
+ AC_CACHE_VAL([ac_cv_linux_kernel_posix_lock_file_wait_arg], [
+ AC_TRY_KBUILD(
+[#include <linux/fs.h>],
+[posix_lock_file(0,0,0);],
+ ac_cv_linux_kernel_posix_lock_file_wait_arg=yes,
+ ac_cv_linux_kernel_posix_lock_file_wait_arg=no)])
+ AC_MSG_RESULT($ac_cv_linux_kernel_posix_lock_file_wait_arg)])
+
+
AC_DEFUN([LINUX_KERNEL_SOCK_CREATE], [
AC_MSG_CHECKING([for 5th argument in sock_create found in some SELinux kernels])
AC_CACHE_VAL([ac_cv_linux_kernel_sock_create_v], [
AC_MSG_RESULT($ac_cv_linux_func_i_permission_takes_nameidata)])
+AC_DEFUN([LINUX_IOP_I_PUT_LINK_TAKES_COOKIE], [
+ AC_MSG_CHECKING([whether inode_operations.put_link takes an opaque cookie])
+ AC_CACHE_VAL([ac_cv_linux_func_i_put_link_takes_cookie], [
+ AC_TRY_KBUILD(
+[#include <linux/fs.h>
+#include <linux/namei.h>],
+[struct inode _inode;
+struct dentry _dentry;
+struct nameidata _nameidata;
+void *cookie;
+(void)_inode.i_op->put_link(&_dentry, &_nameidata, cookie);],
+ ac_cv_linux_func_i_put_link_takes_cookie=yes,
+ ac_cv_linux_func_i_put_link_takes_cookie=no)])
+ AC_MSG_RESULT($ac_cv_linux_func_i_put_link_takes_cookie)])
+
+
AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA], [
AC_MSG_CHECKING([whether dentry_operations.d_revalidate takes a nameidata])
AC_CACHE_VAL([ac_cv_linux_func_d_revalidate_takes_nameidata], [
ac_cv_linux_fs_struct_fop_has_flock=yes,
ac_cv_linux_fs_struct_fop_has_flock=no)])
AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_flock)])
+
+AC_DEFUN([LINUX_REGISTER_SYSCTL_TABLE_NOFLAG], [
+ AC_MSG_CHECKING([whether register_sysctl_table has an insert_at_head flag argument])
+ AC_CACHE_VAL([ac_cv_linux_register_sysctl_table_noflag], [
+ AC_TRY_KBUILD(
+[#include <linux/sysctl.h>],
+[ctl_table *t;
+register_sysctl_table (t);],
+ ac_cv_linux_register_sysctl_table_noflag=yes,
+ ac_cv_linux_register_sysctl_table_noflag=no)])
+ AC_MSG_RESULT($ac_cv_linux_register_sysctl_table_noflag)])
+