+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($ac_cv_linux_exports_tasklist_lock)])
+
+
AC_DEFUN([LINUX_CONFIG_H_EXISTS], [
AC_MSG_CHECKING([for linux/config.h existance])
AC_CACHE_VAL([ac_cv_linux_config_h_exists], [
ac_cv_linux_fs_struct_inode_has_i_blksize=no)])
AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_blksize)])
+AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BLKBITS], [
+ AC_MSG_CHECKING([for i_blkbits in struct inode])
+ AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_blkbits], [
+ AC_TRY_KBUILD(
+[#include <linux/fs.h>],
+[struct inode _inode;
+printk("%d\n", _inode.i_blkbits);],
+ ac_cv_linux_fs_struct_inode_has_i_blkbits=yes,
+ ac_cv_linux_fs_struct_inode_has_i_blkbits=no)])
+ AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_blkbits)
+ if test "x$ac_cv_linux_fs_struct_inode_has_i_blkbits" = "xyes"; then
+ AC_DEFINE(STRUCT_INODE_HAS_I_BLKBITS, 1, [define if your struct inode has i_blkbits])
+ fi])
+
+
AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_CDEV], [
AC_MSG_CHECKING([for i_cdev in struct inode])
AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_cdev], [
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($ac_cv_linux_sched_struct_task_struct_has_exit_state)])
+AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_THREAD_INFO], [
+ AC_MSG_CHECKING([for thread_info in struct task_struct])
+ AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_thread_info], [
+ AC_TRY_KBUILD(
+[#include <linux/sched.h>],
+[struct task_struct _tsk;
+printk("%d\n", _tsk.thread_info);],
+ ac_cv_linux_sched_struct_task_struct_has_thread_info=yes,
+ ac_cv_linux_sched_struct_task_struct_has_thread_info=no)])
+ AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_thread_info)])
+
+
AC_DEFUN([LINUX_FS_STRUCT_SUPER_HAS_ALLOC_INODE], [
AC_MSG_CHECKING([for alloc_inode in struct super_operations])
AC_CACHE_VAL([ac_cv_linux_fs_struct_super_has_alloc_inode], [
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_CHECKING([whether refrigerator takes PF_FREEZE])
AC_CACHE_VAL([ac_cv_linux_func_refrigerator_takes_pf_freeze], [
AC_TRY_KBUILD(
-[#include <linux/sched.h>],
+[#include <linux/sched.h>
+#ifdef FREEZER_H_EXISTS
+#include <linux/freezer.h>
+#endif],
[refrigerator(PF_FREEZE);],
ac_cv_linux_func_refrigerator_takes_pf_freeze=yes,
ac_cv_linux_func_refrigerator_takes_pf_freeze=no)])
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_DEFINE([GENERIC_FILE_AIO_READ], 1, [define if your kernel has generic_file_aio_read()])
fi])
+AC_DEFUN([LINUX_FREEZER_H_EXISTS], [
+ AC_MSG_CHECKING([for linux/freezer.h existance])
+ AC_CACHE_VAL([ac_cv_linux_freezer_h_exists], [
+ AC_TRY_KBUILD(
+[#include <linux/freezer.h>],
+[return;],
+ ac_cv_linux_freezer_h_exists=yes,
+ ac_cv_linux_freezer_h_exists=no)])
+ AC_MSG_RESULT($ac_cv_linux_freezer_h_exists)
+ if test "x$ac_cv_linux_freezer_h_exists" = "xyes"; then
+ AC_DEFINE([FREEZER_H_EXISTS], 1, [define if linux/freezer.h exists])
+ fi])
+
+AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_TODO], [
+ AC_MSG_CHECKING([for todo in struct task_struct])
+ AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_todo], [
+ AC_TRY_KBUILD(
+[#include <linux/sched.h>],
+[struct task_struct _tsk;
+printk("%d\n", _tsk.todo);],
+ ac_cv_linux_sched_struct_task_struct_has_todo=yes,
+ ac_cv_linux_sched_struct_task_struct_has_todo=no)])
+ AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_todo)])
+
+AC_DEFUN([LINUX_INIT_WORK_HAS_DATA], [
+ AC_MSG_CHECKING([whether INIT_WORK has a _data argument])
+ AC_CACHE_VAL([ac_cv_linux_init_work_has_data], [
+ AC_TRY_KBUILD(
+[#include <linux/kernel.h>
+#include <linux/workqueue.h>],
+[
+void f(struct work_struct *w) {}
+struct work_struct *w;
+int *i;
+INIT_WORK(w,f,i);],
+ ac_cv_linux_init_work_has_data=yes,
+ ac_cv_linux_init_work_has_data=no)])
+ AC_MSG_RESULT($ac_cv_linux_init_work_has_data)])
+
+
+AC_DEFUN([LINUX_FS_STRUCT_FOP_HAS_FLOCK], [
+ AC_MSG_CHECKING([for flock in struct file_operations])
+ AC_CACHE_VAL([ac_cv_linux_fs_struct_fop_has_flock], [
+ AC_TRY_KBUILD(
+[#include <linux/fs.h>],
+[struct file_operations _fop;
+_fop.flock(NULL, 0, NULL);],
+ 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)])
+