[ltt-dev] [PATCH 3/6] api: remove arch-specific files

Mathieu Desnoyers compudj at krystal.dyndns.org
Tue Aug 16 06:40:44 EDT 2011


* Paolo Bonzini (pbonzini at redhat.com) wrote:
> No change since they were a subset of api_gcc.h.  api_gcc.h is
> renamed to api.h, and configure need not create a symlink anymore.

Merged, thanks!

Mathieu

> 
> ---
>  configure.ac               |    6 -
>  tests/{api_gcc.h => api.h} |    0
>  tests/api_ppc.h            | 1152 -------------------------------------------
>  tests/api_x86.h            | 1162 --------------------------------------------
>  4 files changed, 0 insertions(+), 2320 deletions(-)
>  rename tests/{api_gcc.h => api.h} (100%)
>  delete mode 100644 tests/api_ppc.h
>  delete mode 100644 tests/api_x86.h
> 
> diff --git a/configure.ac b/configure.ac
> index 2c8b219..c4bd10a 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -83,11 +83,6 @@ fi
>  
>  UATOMICSRC=urcu/uatomic/$ARCHTYPE.h
>  ARCHSRC=urcu/arch/$ARCHTYPE.h
> -if test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc; then
> -	APISRC=tests/api_gcc.h
> -else
> -	APISRC=tests/api_$ARCHTYPE.h
> -fi
>  if test "$ARCHTYPE" == "armv7l"; then
>  	CFLAGS="-mcpu=cortex-a9 -mtune=cortex-a9 -O"
>  fi
> @@ -241,7 +236,6 @@ CFLAGS=$saved_CFLAGS
>  AC_CONFIG_LINKS([
>  	urcu/arch.h:$ARCHSRC
>  	urcu/uatomic.h:$UATOMICSRC
> -	tests/api.h:$APISRC
>  ])
>  AC_CONFIG_FILES([
>  	Makefile
> diff --git a/tests/api_gcc.h b/tests/api.h
> similarity index 100%
> rename from tests/api_gcc.h
> rename to tests/api.h
> diff --git a/tests/api_ppc.h b/tests/api_ppc.h
> deleted file mode 100644
> index 255cb89..0000000
> --- a/tests/api_ppc.h
> +++ /dev/null
> @@ -1,1152 +0,0 @@
> -/* MECHANICALLY GENERATED, DO NOT EDIT!!! */
> -
> -#ifndef _INCLUDE_API_H
> -#define _INCLUDE_API_H
> -
> -/*
> - * common.h: Common Linux kernel-isms.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; but version 2 of the License only due
> - * to code included from the Linux kernel.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> - *
> - * Copyright (c) 2006 Paul E. McKenney, IBM.
> - *
> - * Much code taken from the Linux kernel.  For such code, the option
> - * to redistribute under later versions of GPL might not be available.
> - */
> -
> -#include <urcu/arch.h>
> -
> -#ifndef __always_inline
> -#define __always_inline inline
> -#endif
> -
> -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
> -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
> -
> -#ifdef __ASSEMBLY__
> -#  define stringify_in_c(...)   __VA_ARGS__
> -#  define ASM_CONST(x)          x
> -#else
> -/* This version of stringify will deal with commas... */
> -#  define __stringify_in_c(...) #__VA_ARGS__
> -#  define stringify_in_c(...)   __stringify_in_c(__VA_ARGS__) " "
> -#  define __ASM_CONST(x)        x##UL
> -#  define ASM_CONST(x)          __ASM_CONST(x)
> -#endif
> -
> -
> -/*
> - * arch-ppc64.h: Expose PowerPC atomic instructions.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; but version 2 of the License only due
> - * to code included from the Linux kernel.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> - *
> - * Copyright (c) 2006 Paul E. McKenney, IBM.
> - *
> - * Much code taken from the Linux kernel.  For such code, the option
> - * to redistribute under later versions of GPL might not be available.
> - */
> -
> -/*
> - * Machine parameters.
> - */
> -
> -#define ____cacheline_internodealigned_in_smp \
> -	__attribute__((__aligned__(CAA_CACHE_LINE_SIZE)))
> -
> -/*
> - * api_pthreads.h: API mapping to pthreads environment.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.  However, please note that much
> - * of the code in this file derives from the Linux kernel, and that such
> - * code may not be available except under GPLv2.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> - *
> - * Copyright (c) 2006 Paul E. McKenney, IBM.
> - */
> -
> -#include <stdio.h>
> -#include <stdlib.h>
> -#include <errno.h>
> -#include <limits.h>
> -#include <sys/types.h>
> -#define __USE_GNU
> -#include <pthread.h>
> -#include <sched.h>
> -#include <sys/param.h>
> -/* #include "atomic.h" */
> -
> -/*
> - * Default machine parameters.
> - */
> -
> -#ifndef CAA_CACHE_LINE_SIZE
> -/* #define CAA_CACHE_LINE_SIZE 128 */
> -#endif /* #ifndef CAA_CACHE_LINE_SIZE */
> -
> -/*
> - * Exclusive locking primitives.
> - */
> -
> -typedef pthread_mutex_t spinlock_t;
> -
> -#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER;
> -#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER
> -
> -static void spin_lock_init(spinlock_t *sp)
> -{
> -	if (pthread_mutex_init(sp, NULL) != 0) {
> -		perror("spin_lock_init:pthread_mutex_init");
> -		exit(-1);
> -	}
> -}
> -
> -static void spin_lock(spinlock_t *sp)
> -{
> -	if (pthread_mutex_lock(sp) != 0) {
> -		perror("spin_lock:pthread_mutex_lock");
> -		exit(-1);
> -	}
> -}
> -
> -static void spin_unlock(spinlock_t *sp)
> -{
> -	if (pthread_mutex_unlock(sp) != 0) {
> -		perror("spin_unlock:pthread_mutex_unlock");
> -		exit(-1);
> -	}
> -}
> -
> -#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0)
> -#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0)
> -
> -/*
> - * Thread creation/destruction primitives.
> - */
> -
> -typedef pthread_t thread_id_t;
> -
> -#define NR_THREADS 128
> -
> -#define __THREAD_ID_MAP_EMPTY 0
> -#define __THREAD_ID_MAP_WAITING 1
> -thread_id_t __thread_id_map[NR_THREADS];
> -spinlock_t __thread_id_map_mutex;
> -
> -#define for_each_thread(t) \
> -	for (t = 0; t < NR_THREADS; t++)
> -
> -#define for_each_running_thread(t) \
> -	for (t = 0; t < NR_THREADS; t++) \
> -		if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \
> -		    (__thread_id_map[t] != __THREAD_ID_MAP_WAITING))
> -
> -#define for_each_tid(t, tid) \
> -	for (t = 0; t < NR_THREADS; t++) \
> -		if ((((tid) = __thread_id_map[t]) != __THREAD_ID_MAP_EMPTY) && \
> -		    ((tid) != __THREAD_ID_MAP_WAITING))
> -
> -pthread_key_t thread_id_key;
> -
> -static int __smp_thread_id(void)
> -{
> -	int i;
> -	thread_id_t tid = pthread_self();
> -
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == tid) {
> -			long v = i + 1;  /* must be non-NULL. */
> -
> -			if (pthread_setspecific(thread_id_key, (void *)v) != 0) {
> -				perror("pthread_setspecific");
> -				exit(-1);
> -			}
> -			return i;
> -		}
> -	}
> -	spin_lock(&__thread_id_map_mutex);
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == tid)
> -			spin_unlock(&__thread_id_map_mutex);
> -			return i;
> -	}
> -	spin_unlock(&__thread_id_map_mutex);
> -	fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n",
> -			(int)tid, (int)tid);
> -	exit(-1);
> -}
> -
> -static int smp_thread_id(void)
> -{
> -	void *id;
> -
> -	id = pthread_getspecific(thread_id_key);
> -	if (id == NULL)
> -		return __smp_thread_id();
> -	return (long)(id - 1);
> -}
> -
> -static thread_id_t create_thread(void *(*func)(void *), void *arg)
> -{
> -	thread_id_t tid;
> -	int i;
> -
> -	spin_lock(&__thread_id_map_mutex);
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY)
> -			break;
> -	}
> -	if (i >= NR_THREADS) {
> -		spin_unlock(&__thread_id_map_mutex);
> -		fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS);
> -		exit(-1);
> -	}
> -	__thread_id_map[i] = __THREAD_ID_MAP_WAITING;
> -	spin_unlock(&__thread_id_map_mutex);
> -	if (pthread_create(&tid, NULL, func, arg) != 0) {
> -		perror("create_thread:pthread_create");
> -		exit(-1);
> -	}
> -	__thread_id_map[i] = tid;
> -	return tid;
> -}
> -
> -static void *wait_thread(thread_id_t tid)
> -{
> -	int i;
> -	void *vp;
> -
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == tid)
> -			break;
> -	}
> -	if (i >= NR_THREADS){
> -		fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n",
> -				(int)tid, (int)tid);
> -		exit(-1);
> -	}
> -	if (pthread_join(tid, &vp) != 0) {
> -		perror("wait_thread:pthread_join");
> -		exit(-1);
> -	}
> -	__thread_id_map[i] = __THREAD_ID_MAP_EMPTY;
> -	return vp;
> -}
> -
> -static void wait_all_threads(void)
> -{
> -	int i;
> -	thread_id_t tid;
> -
> -	for (i = 1; i < NR_THREADS; i++) {
> -		tid = __thread_id_map[i];
> -		if (tid != __THREAD_ID_MAP_EMPTY &&
> -		    tid != __THREAD_ID_MAP_WAITING)
> -			(void)wait_thread(tid);
> -	}
> -}
> -
> -static void run_on(int cpu)
> -{
> -	cpu_set_t mask;
> -
> -	CPU_ZERO(&mask);
> -	CPU_SET(cpu, &mask);
> -	sched_setaffinity(0, sizeof(mask), &mask);
> -}
> -
> -/*
> - * timekeeping -- very crude -- should use MONOTONIC...
> - */
> -
> -long long get_microseconds(void)
> -{
> -	struct timeval tv;
> -
> -	if (gettimeofday(&tv, NULL) != 0)
> -		abort();
> -	return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec;
> -}
> -
> -/*
> - * Per-thread variables.
> - */
> -
> -#define DEFINE_PER_THREAD(type, name) \
> -	struct { \
> -		__typeof__(type) v \
> -			__attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \
> -	} __per_thread_##name[NR_THREADS];
> -#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name)
> -
> -#define per_thread(name, thread) __per_thread_##name[thread].v
> -#define __get_thread_var(name) per_thread(name, smp_thread_id())
> -
> -#define init_per_thread(name, v) \
> -	do { \
> -		int __i_p_t_i; \
> -		for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \
> -			per_thread(name, __i_p_t_i) = v; \
> -	} while (0)
> -
> -/*
> - * CPU traversal primitives.
> - */
> -
> -#ifndef NR_CPUS
> -#define NR_CPUS 16
> -#endif /* #ifndef NR_CPUS */
> -
> -#define for_each_possible_cpu(cpu) \
> -	for (cpu = 0; cpu < NR_CPUS; cpu++)
> -#define for_each_online_cpu(cpu) \
> -	for (cpu = 0; cpu < NR_CPUS; cpu++)
> -
> -/*
> - * Per-CPU variables.
> - */
> -
> -#define DEFINE_PER_CPU(type, name) \
> -	struct { \
> -		__typeof__(type) v \
> -			__attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \
> -	} __per_cpu_##name[NR_CPUS]
> -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name)
> -
> -DEFINE_PER_THREAD(int, smp_processor_id);
> -
> -#define per_cpu(name, thread) __per_cpu_##name[thread].v
> -#define __get_cpu_var(name) per_cpu(name, smp_processor_id())
> -
> -#define init_per_cpu(name, v) \
> -	do { \
> -		int __i_p_c_i; \
> -		for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \
> -			per_cpu(name, __i_p_c_i) = v; \
> -	} while (0)
> -
> -/*
> - * CPU state checking (crowbarred).
> - */
> -
> -#define idle_cpu(cpu) 0
> -#define in_softirq() 1
> -#define hardirq_count() 0
> -#define PREEMPT_SHIFT   0
> -#define SOFTIRQ_SHIFT   (PREEMPT_SHIFT + PREEMPT_BITS)
> -#define HARDIRQ_SHIFT   (SOFTIRQ_SHIFT + SOFTIRQ_BITS)
> -#define PREEMPT_BITS    8
> -#define SOFTIRQ_BITS    8
> -
> -/*
> - * CPU hotplug.
> - */
> -
> -struct notifier_block {
> -	int (*notifier_call)(struct notifier_block *, unsigned long, void *);
> -	struct notifier_block *next;
> -	int priority;
> -};
> -
> -#define CPU_ONLINE		0x0002 /* CPU (unsigned)v is up */
> -#define CPU_UP_PREPARE		0x0003 /* CPU (unsigned)v coming up */
> -#define CPU_UP_CANCELED		0x0004 /* CPU (unsigned)v NOT coming up */
> -#define CPU_DOWN_PREPARE	0x0005 /* CPU (unsigned)v going down */
> -#define CPU_DOWN_FAILED		0x0006 /* CPU (unsigned)v NOT going down */
> -#define CPU_DEAD		0x0007 /* CPU (unsigned)v dead */
> -#define CPU_DYING		0x0008 /* CPU (unsigned)v not running any task,
> -				        * not handling interrupts, soon dead */
> -#define CPU_POST_DEAD		0x0009 /* CPU (unsigned)v dead, cpu_hotplug
> -					* lock is dropped */
> -
> -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend
> - * operation in progress
> - */
> -#define CPU_TASKS_FROZEN	0x0010
> -
> -#define CPU_ONLINE_FROZEN	(CPU_ONLINE | CPU_TASKS_FROZEN)
> -#define CPU_UP_PREPARE_FROZEN	(CPU_UP_PREPARE | CPU_TASKS_FROZEN)
> -#define CPU_UP_CANCELED_FROZEN	(CPU_UP_CANCELED | CPU_TASKS_FROZEN)
> -#define CPU_DOWN_PREPARE_FROZEN	(CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
> -#define CPU_DOWN_FAILED_FROZEN	(CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
> -#define CPU_DEAD_FROZEN		(CPU_DEAD | CPU_TASKS_FROZEN)
> -#define CPU_DYING_FROZEN	(CPU_DYING | CPU_TASKS_FROZEN)
> -
> -/* Hibernation and suspend events */
> -#define PM_HIBERNATION_PREPARE	0x0001 /* Going to hibernate */
> -#define PM_POST_HIBERNATION	0x0002 /* Hibernation finished */
> -#define PM_SUSPEND_PREPARE	0x0003 /* Going to suspend the system */
> -#define PM_POST_SUSPEND		0x0004 /* Suspend finished */
> -#define PM_RESTORE_PREPARE	0x0005 /* Going to restore a saved image */
> -#define PM_POST_RESTORE		0x0006 /* Restore failed */
> -
> -#define NOTIFY_DONE		0x0000		/* Don't care */
> -#define NOTIFY_OK		0x0001		/* Suits me */
> -#define NOTIFY_STOP_MASK	0x8000		/* Don't call further */
> -#define NOTIFY_BAD		(NOTIFY_STOP_MASK|0x0002)
> -						/* Bad/Veto action */
> -/*
> - * Clean way to return from the notifier and stop further calls.
> - */
> -#define NOTIFY_STOP		(NOTIFY_OK|NOTIFY_STOP_MASK)
> -
> -/*
> - * Bug checks.
> - */
> -
> -#define BUG_ON(c) do { if (!(c)) abort(); } while (0)
> -
> -/*
> - * Initialization -- Must be called before calling any primitives.
> - */
> -
> -static void smp_init(void)
> -{
> -	int i;
> -
> -	spin_lock_init(&__thread_id_map_mutex);
> -	__thread_id_map[0] = pthread_self();
> -	for (i = 1; i < NR_THREADS; i++)
> -		__thread_id_map[i] = __THREAD_ID_MAP_EMPTY;
> -	init_per_thread(smp_processor_id, 0);
> -	if (pthread_key_create(&thread_id_key, NULL) != 0) {
> -		perror("pthread_key_create");
> -		exit(-1);
> -	}
> -}
> -
> -/* Taken from the Linux kernel source tree, so GPLv2-only!!! */
> -
> -#ifndef _LINUX_LIST_H
> -#define _LINUX_LIST_H
> -
> -#define LIST_POISON1  ((void *) 0x00100100)
> -#define LIST_POISON2  ((void *) 0x00200200)
> -
> -#if 0
> -
> -/*
> - * Simple doubly linked list implementation.
> - *
> - * Some of the internal functions ("__xxx") are useful when
> - * manipulating whole lists rather than single entries, as
> - * sometimes we already know the next/prev entries and we can
> - * generate better code by using them directly rather than
> - * using the generic single-entry routines.
> - */
> -
> -struct cds_list_head {
> -	struct cds_list_head *next, *prev;
> -};
> -
> -#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) }
> -
> -#define CDS_LIST_HEAD(name) \
> -	struct cds_list_head name = CDS_LIST_HEAD_INIT(name)
> -
> -static inline void CDS_INIT_LIST_HEAD(struct cds_list_head *list)
> -{
> -	list->next = list;
> -	list->prev = list;
> -}
> -
> -/*
> - * Insert a new entry between two known consecutive entries.
> - *
> - * This is only for internal list manipulation where we know
> - * the prev/next entries already!
> - */
> -#ifndef CONFIG_DEBUG_LIST
> -static inline void __cds_list_add(struct cds_list_head *new,
> -			      struct cds_list_head *prev,
> -			      struct cds_list_head *next)
> -{
> -	next->prev = new;
> -	new->next = next;
> -	new->prev = prev;
> -	prev->next = new;
> -}
> -#else
> -extern void __cds_list_add(struct cds_list_head *new,
> -			      struct cds_list_head *prev,
> -			      struct cds_list_head *next);
> -#endif
> -
> -/**
> - * cds_list_add - add a new entry
> - * @new: new entry to be added
> - * @head: list head to add it after
> - *
> - * Insert a new entry after the specified head.
> - * This is good for implementing stacks.
> - */
> -static inline void cds_list_add(struct cds_list_head *new, struct cds_list_head *head)
> -{
> -	__cds_list_add(new, head, head->next);
> -}
> -
> -
> -/**
> - * cds_list_add_tail - add a new entry
> - * @new: new entry to be added
> - * @head: list head to add it before
> - *
> - * Insert a new entry before the specified head.
> - * This is useful for implementing queues.
> - */
> -static inline void cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head)
> -{
> -	__cds_list_add(new, head->prev, head);
> -}
> -
> -/*
> - * Delete a list entry by making the prev/next entries
> - * point to each other.
> - *
> - * This is only for internal list manipulation where we know
> - * the prev/next entries already!
> - */
> -static inline void __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next)
> -{
> -	next->prev = prev;
> -	prev->next = next;
> -}
> -
> -/**
> - * cds_list_del - deletes entry from list.
> - * @entry: the element to delete from the list.
> - * Note: cds_list_empty() on entry does not return true after this, the entry is
> - * in an undefined state.
> - */
> -#ifndef CONFIG_DEBUG_LIST
> -static inline void cds_list_del(struct cds_list_head *entry)
> -{
> -	__cds_list_del(entry->prev, entry->next);
> -	entry->next = LIST_POISON1;
> -	entry->prev = LIST_POISON2;
> -}
> -#else
> -extern void cds_list_del(struct cds_list_head *entry);
> -#endif
> -
> -/**
> - * cds_list_replace - replace old entry by new one
> - * @old : the element to be replaced
> - * @new : the new element to insert
> - *
> - * If @old was empty, it will be overwritten.
> - */
> -static inline void cds_list_replace(struct cds_list_head *old,
> -				struct cds_list_head *new)
> -{
> -	new->next = old->next;
> -	new->next->prev = new;
> -	new->prev = old->prev;
> -	new->prev->next = new;
> -}
> -
> -static inline void cds_list_replace_init(struct cds_list_head *old,
> -					struct cds_list_head *new)
> -{
> -	cds_list_replace(old, new);
> -	CDS_INIT_LIST_HEAD(old);
> -}
> -
> -/**
> - * cds_list_del_init - deletes entry from list and reinitialize it.
> - * @entry: the element to delete from the list.
> - */
> -static inline void cds_list_del_init(struct cds_list_head *entry)
> -{
> -	__cds_list_del(entry->prev, entry->next);
> -	CDS_INIT_LIST_HEAD(entry);
> -}
> -
> -/**
> - * cds_list_move - delete from one list and add as another's head
> - * @list: the entry to move
> - * @head: the head that will precede our entry
> - */
> -static inline void cds_list_move(struct cds_list_head *list, struct cds_list_head *head)
> -{
> -	__cds_list_del(list->prev, list->next);
> -	cds_list_add(list, head);
> -}
> -
> -/**
> - * cds_list_move_tail - delete from one list and add as another's tail
> - * @list: the entry to move
> - * @head: the head that will follow our entry
> - */
> -static inline void cds_list_move_tail(struct cds_list_head *list,
> -				  struct cds_list_head *head)
> -{
> -	__cds_list_del(list->prev, list->next);
> -	cds_list_add_tail(list, head);
> -}
> -
> -/**
> - * list_is_last - tests whether @list is the last entry in list @head
> - * @list: the entry to test
> - * @head: the head of the list
> - */
> -static inline int list_is_last(const struct cds_list_head *list,
> -				const struct cds_list_head *head)
> -{
> -	return list->next == head;
> -}
> -
> -/**
> - * cds_list_empty - tests whether a list is empty
> - * @head: the list to test.
> - */
> -static inline int cds_list_empty(const struct cds_list_head *head)
> -{
> -	return head->next == head;
> -}
> -
> -/**
> - * cds_list_empty_careful - tests whether a list is empty and not being modified
> - * @head: the list to test
> - *
> - * Description:
> - * tests whether a list is empty _and_ checks that no other CPU might be
> - * in the process of modifying either member (next or prev)
> - *
> - * NOTE: using cds_list_empty_careful() without synchronization
> - * can only be safe if the only activity that can happen
> - * to the list entry is cds_list_del_init(). Eg. it cannot be used
> - * if another CPU could re-list_add() it.
> - */
> -static inline int cds_list_empty_careful(const struct cds_list_head *head)
> -{
> -	struct cds_list_head *next = head->next;
> -	return (next == head) && (next == head->prev);
> -}
> -
> -/**
> - * list_is_singular - tests whether a list has just one entry.
> - * @head: the list to test.
> - */
> -static inline int list_is_singular(const struct cds_list_head *head)
> -{
> -	return !list_empty(head) && (head->next == head->prev);
> -}
> -
> -static inline void __list_cut_position(struct cds_list_head *list,
> -		struct cds_list_head *head, struct cds_list_head *entry)
> -{
> -	struct cds_list_head *new_first = entry->next;
> -	list->next = head->next;
> -	list->next->prev = list;
> -	list->prev = entry;
> -	entry->next = list;
> -	head->next = new_first;
> -	new_first->prev = head;
> -}
> -
> -/**
> - * list_cut_position - cut a list into two
> - * @list: a new list to add all removed entries
> - * @head: a list with entries
> - * @entry: an entry within head, could be the head itself
> - *	and if so we won't cut the list
> - *
> - * This helper moves the initial part of @head, up to and
> - * including @entry, from @head to @list. You should
> - * pass on @entry an element you know is on @head. @list
> - * should be an empty list or a list you do not care about
> - * losing its data.
> - *
> - */
> -static inline void list_cut_position(struct cds_list_head *list,
> -		struct cds_list_head *head, struct cds_list_head *entry)
> -{
> -	if (cds_list_empty(head))
> -		return;
> -	if (list_is_singular(head) &&
> -		(head->next != entry && head != entry))
> -		return;
> -	if (entry == head)
> -		CDS_INIT_LIST_HEAD(list);
> -	else
> -		__list_cut_position(list, head, entry);
> -}
> -
> -static inline void __cds_list_splice(const struct cds_list_head *list,
> -				 struct cds_list_head *prev,
> -				 struct cds_list_head *next)
> -{
> -	struct cds_list_head *first = list->next;
> -	struct cds_list_head *last = list->prev;
> -
> -	first->prev = prev;
> -	prev->next = first;
> -
> -	last->next = next;
> -	next->prev = last;
> -}
> -
> -/**
> - * cds_list_splice - join two lists, this is designed for stacks
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - */
> -static inline void cds_list_splice(const struct cds_list_head *list,
> -				struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list))
> -		__cds_list_splice(list, head, head->next);
> -}
> -
> -/**
> - * cds_list_splice_tail - join two lists, each list being a queue
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - */
> -static inline void cds_list_splice_tail(struct cds_list_head *list,
> -				struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list))
> -		__cds_list_splice(list, head->prev, head);
> -}
> -
> -/**
> - * cds_list_splice_init - join two lists and reinitialise the emptied list.
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - *
> - * The list at @list is reinitialised
> - */
> -static inline void cds_list_splice_init(struct cds_list_head *list,
> -				    struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list)) {
> -		__cds_list_splice(list, head, head->next);
> -		CDS_INIT_LIST_HEAD(list);
> -	}
> -}
> -
> -/**
> - * cds_list_splice_tail_init - join two lists and reinitialise the emptied list
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - *
> - * Each of the lists is a queue.
> - * The list at @list is reinitialised
> - */
> -static inline void cds_list_splice_tail_init(struct cds_list_head *list,
> -					 struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list)) {
> -		__cds_list_splice(list, head->prev, head);
> -		CDS_INIT_LIST_HEAD(list);
> -	}
> -}
> -
> -/**
> - * cds_list_entry - get the struct for this entry
> - * @ptr:	the &struct cds_list_head pointer.
> - * @type:	the type of the struct this is embedded in.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_entry(ptr, type, member) \
> -	caa_container_of(ptr, type, member)
> -
> -/**
> - * list_first_entry - get the first element from a list
> - * @ptr:	the list head to take the element from.
> - * @type:	the type of the struct this is embedded in.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Note, that list is expected to be not empty.
> - */
> -#define list_first_entry(ptr, type, member) \
> -	cds_list_entry((ptr)->next, type, member)
> -
> -/**
> - * cds_list_for_each	-	iterate over a list
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each(pos, head) \
> -	for (pos = (head)->next; prefetch(pos->next), pos != (head); \
> -        	pos = pos->next)
> -
> -/**
> - * __cds_list_for_each	-	iterate over a list
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @head:	the head for your list.
> - *
> - * This variant differs from cds_list_for_each() in that it's the
> - * simplest possible list iteration code, no prefetching is done.
> - * Use this for code that knows the list to be very short (empty
> - * or 1 entry) most of the time.
> - */
> -#define __cds_list_for_each(pos, head) \
> -	for (pos = (head)->next; pos != (head); pos = pos->next)
> -
> -/**
> - * cds_list_for_each_prev	-	iterate over a list backwards
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each_prev(pos, head) \
> -	for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \
> -        	pos = pos->prev)
> -
> -/**
> - * cds_list_for_each_safe - iterate over a list safe against removal of list entry
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @n:		another &struct cds_list_head to use as temporary storage
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each_safe(pos, n, head) \
> -	for (pos = (head)->next, n = pos->next; pos != (head); \
> -		pos = n, n = pos->next)
> -
> -/**
> - * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @n:		another &struct cds_list_head to use as temporary storage
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each_prev_safe(pos, n, head) \
> -	for (pos = (head)->prev, n = pos->prev; \
> -	     prefetch(pos->prev), pos != (head); \
> -	     pos = n, n = pos->prev)
> -
> -/**
> - * cds_list_for_each_entry	-	iterate over list of given type
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_for_each_entry(pos, head, member)				\
> -	for (pos = cds_list_entry((head)->next, typeof(*pos), member);	\
> -	     prefetch(pos->member.next), &pos->member != (head); 	\
> -	     pos = cds_list_entry(pos->member.next, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_reverse - iterate backwards over list of given type.
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_for_each_entry_reverse(pos, head, member)			\
> -	for (pos = cds_list_entry((head)->prev, typeof(*pos), member);	\
> -	     prefetch(pos->member.prev), &pos->member != (head); 	\
> -	     pos = cds_list_entry(pos->member.prev, typeof(*pos), member))
> -
> -/**
> - * list_prepare_entry - prepare a pos entry for use in cds_list_for_each_entry_continue()
> - * @pos:	the type * to use as a start point
> - * @head:	the head of the list
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Prepares a pos entry for use as a start point in cds_list_for_each_entry_continue().
> - */
> -#define list_prepare_entry(pos, head, member) \
> -	((pos) ? : cds_list_entry(head, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_continue - continue iteration over list of given type
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Continue to iterate over list of given type, continuing after
> - * the current position.
> - */
> -#define cds_list_for_each_entry_continue(pos, head, member) 		\
> -	for (pos = cds_list_entry(pos->member.next, typeof(*pos), member);	\
> -	     prefetch(pos->member.next), &pos->member != (head);	\
> -	     pos = cds_list_entry(pos->member.next, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_continue_reverse - iterate backwards from the given point
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Start to iterate over list of given type backwards, continuing after
> - * the current position.
> - */
> -#define cds_list_for_each_entry_continue_reverse(pos, head, member)		\
> -	for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member);	\
> -	     prefetch(pos->member.prev), &pos->member != (head);	\
> -	     pos = cds_list_entry(pos->member.prev, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_from - iterate over list of given type from the current point
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate over list of given type, continuing from current position.
> - */
> -#define cds_list_for_each_entry_from(pos, head, member) 			\
> -	for (; prefetch(pos->member.next), &pos->member != (head);	\
> -	     pos = cds_list_entry(pos->member.next, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_for_each_entry_safe(pos, n, head, member)			\
> -	for (pos = cds_list_entry((head)->next, typeof(*pos), member),	\
> -		n = cds_list_entry(pos->member.next, typeof(*pos), member);	\
> -	     &pos->member != (head); 					\
> -	     pos = n, n = cds_list_entry(n->member.next, typeof(*n), member))
> -
> -/**
> - * cds_list_for_each_entry_safe_continue
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate over list of given type, continuing after current point,
> - * safe against removal of list entry.
> - */
> -#define cds_list_for_each_entry_safe_continue(pos, n, head, member) 		\
> -	for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), 		\
> -		n = cds_list_entry(pos->member.next, typeof(*pos), member);		\
> -	     &pos->member != (head);						\
> -	     pos = n, n = cds_list_entry(n->member.next, typeof(*n), member))
> -
> -/**
> - * cds_list_for_each_entry_safe_from
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate over list of given type from current point, safe against
> - * removal of list entry.
> - */
> -#define cds_list_for_each_entry_safe_from(pos, n, head, member) 			\
> -	for (n = cds_list_entry(pos->member.next, typeof(*pos), member);		\
> -	     &pos->member != (head);						\
> -	     pos = n, n = cds_list_entry(n->member.next, typeof(*n), member))
> -
> -/**
> - * cds_list_for_each_entry_safe_reverse
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate backwards over list of given type, safe against removal
> - * of list entry.
> - */
> -#define cds_list_for_each_entry_safe_reverse(pos, n, head, member)		\
> -	for (pos = cds_list_entry((head)->prev, typeof(*pos), member),	\
> -		n = cds_list_entry(pos->member.prev, typeof(*pos), member);	\
> -	     &pos->member != (head); 					\
> -	     pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member))
> -
> -#endif //0
> -
> -/*
> - * Double linked lists with a single pointer list head.
> - * Mostly useful for hash tables where the two pointer list head is
> - * too wasteful.
> - * You lose the ability to access the tail in O(1).
> - */
> -
> -struct cds_hlist_head {
> -	struct cds_hlist_node *first;
> -};
> -
> -struct cds_hlist_node {
> -	struct cds_hlist_node *next, **pprev;
> -};
> -
> -#define HLIST_HEAD_INIT { .first = NULL }
> -#define HLIST_HEAD(name) struct cds_hlist_head name = {  .first = NULL }
> -#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
> -static inline void INIT_HLIST_NODE(struct cds_hlist_node *h)
> -{
> -	h->next = NULL;
> -	h->pprev = NULL;
> -}
> -
> -static inline int hlist_unhashed(const struct cds_hlist_node *h)
> -{
> -	return !h->pprev;
> -}
> -
> -static inline int hlist_empty(const struct cds_hlist_head *h)
> -{
> -	return !h->first;
> -}
> -
> -static inline void __cds_hlist_del(struct cds_hlist_node *n)
> -{
> -	struct cds_hlist_node *next = n->next;
> -	struct cds_hlist_node **pprev = n->pprev;
> -	*pprev = next;
> -	if (next)
> -		next->pprev = pprev;
> -}
> -
> -static inline void cds_hlist_del(struct cds_hlist_node *n)
> -{
> -	__cds_hlist_del(n);
> -	n->next = LIST_POISON1;
> -	n->pprev = LIST_POISON2;
> -}
> -
> -static inline void cds_hlist_del_init(struct cds_hlist_node *n)
> -{
> -	if (!hlist_unhashed(n)) {
> -		__cds_hlist_del(n);
> -		INIT_HLIST_NODE(n);
> -	}
> -}
> -
> -static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h)
> -{
> -	struct cds_hlist_node *first = h->first;
> -	n->next = first;
> -	if (first)
> -		first->pprev = &n->next;
> -	h->first = n;
> -	n->pprev = &h->first;
> -}
> -
> -/* next must be != NULL */
> -static inline void hlist_add_before(struct cds_hlist_node *n,
> -					struct cds_hlist_node *next)
> -{
> -	n->pprev = next->pprev;
> -	n->next = next;
> -	next->pprev = &n->next;
> -	*(n->pprev) = n;
> -}
> -
> -static inline void hlist_add_after(struct cds_hlist_node *n,
> -					struct cds_hlist_node *next)
> -{
> -	next->next = n->next;
> -	n->next = next;
> -	next->pprev = &n->next;
> -
> -	if(next->next)
> -		next->next->pprev  = &next->next;
> -}
> -
> -/*
> - * Move a list from one list head to another. Fixup the pprev
> - * reference of the first entry if it exists.
> - */
> -static inline void hlist_move_list(struct cds_hlist_head *old,
> -				   struct cds_hlist_head *new)
> -{
> -	new->first = old->first;
> -	if (new->first)
> -		new->first->pprev = &new->first;
> -	old->first = NULL;
> -}
> -
> -#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member)
> -
> -#define cds_hlist_for_each(pos, head) \
> -	for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \
> -	     pos = pos->next)
> -
> -#define cds_hlist_for_each_safe(pos, n, head) \
> -	for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
> -	     pos = n)
> -
> -/**
> - * cds_hlist_for_each_entry	- iterate over list of given type
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry(tpos, pos, head, member)			 \
> -	for (pos = (head)->first;					 \
> -	     pos && ({ prefetch(pos->next); 1;}) &&			 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = pos->next)
> -
> -/**
> - * cds_hlist_for_each_entry_continue - iterate over a hlist continuing after current point
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry_continue(tpos, pos, member)		 \
> -	for (pos = (pos)->next;						 \
> -	     pos && ({ prefetch(pos->next); 1;}) &&			 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = pos->next)
> -
> -/**
> - * cds_hlist_for_each_entry_from - iterate over a hlist continuing from current point
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry_from(tpos, pos, member)			 \
> -	for (; pos && ({ prefetch(pos->next); 1;}) &&			 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = pos->next)
> -
> -/**
> - * cds_hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @n:		another &struct cds_hlist_node to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) 		 \
> -	for (pos = (head)->first;					 \
> -	     pos && ({ n = pos->next; 1; }) && 				 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = n)
> -
> -#endif
> -
> -#endif
> diff --git a/tests/api_x86.h b/tests/api_x86.h
> deleted file mode 100644
> index 9147249..0000000
> --- a/tests/api_x86.h
> +++ /dev/null
> @@ -1,1162 +0,0 @@
> -/* MECHANICALLY GENERATED, DO NOT EDIT!!! */
> -
> -#ifndef _INCLUDE_API_H
> -#define _INCLUDE_API_H
> -
> -#include "../config.h"
> -
> -/*
> - * common.h: Common Linux kernel-isms.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; but version 2 of the License only due
> - * to code included from the Linux kernel.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> - *
> - * Copyright (c) 2006 Paul E. McKenney, IBM.
> - *
> - * Much code taken from the Linux kernel.  For such code, the option
> - * to redistribute under later versions of GPL might not be available.
> - */
> -
> -#include <urcu/arch.h>
> -
> -#ifndef __always_inline
> -#define __always_inline inline
> -#endif
> -
> -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
> -#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
> -
> -#ifdef __ASSEMBLY__
> -#  define stringify_in_c(...)   __VA_ARGS__
> -#  define ASM_CONST(x)          x
> -#else
> -/* This version of stringify will deal with commas... */
> -#  define __stringify_in_c(...) #__VA_ARGS__
> -#  define stringify_in_c(...)   __stringify_in_c(__VA_ARGS__) " "
> -#  define __ASM_CONST(x)        x##UL
> -#  define ASM_CONST(x)          __ASM_CONST(x)
> -#endif
> -
> -
> -/*
> - * arch-i386.h: Expose x86 atomic instructions.  80486 and better only.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation, but version 2 only due to inclusion
> - * of Linux-kernel code.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> - *
> - * Copyright (c) 2006 Paul E. McKenney, IBM.
> - *
> - * Much code taken from the Linux kernel.  For such code, the option
> - * to redistribute under later versions of GPL might not be available.
> - */
> -
> -/*
> - * Machine parameters.
> - */
> -
> -/* #define CAA_CACHE_LINE_SIZE 64 */
> -#define ____cacheline_internodealigned_in_smp \
> -	__attribute__((__aligned__(CAA_CACHE_LINE_SIZE)))
> -
> -/*
> - * api_pthreads.h: API mapping to pthreads environment.
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License as published by
> - * the Free Software Foundation; either version 2 of the License, or
> - * (at your option) any later version.  However, please note that much
> - * of the code in this file derives from the Linux kernel, and that such
> - * code may not be available except under GPLv2.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> - *
> - * Copyright (c) 2006 Paul E. McKenney, IBM.
> - */
> -
> -#include <stdio.h>
> -#include <stdlib.h>
> -#include <errno.h>
> -#include <limits.h>
> -#include <sys/types.h>
> -#define __USE_GNU
> -#include <pthread.h>
> -#include <sched.h>
> -#include <sys/param.h>
> -/* #include "atomic.h" */
> -
> -/*
> - * Default machine parameters.
> - */
> -
> -#ifndef CAA_CACHE_LINE_SIZE
> -/* #define CAA_CACHE_LINE_SIZE 128 */
> -#endif /* #ifndef CAA_CACHE_LINE_SIZE */
> -
> -/*
> - * Exclusive locking primitives.
> - */
> -
> -typedef pthread_mutex_t spinlock_t;
> -
> -#define DEFINE_SPINLOCK(lock) spinlock_t lock = PTHREAD_MUTEX_INITIALIZER;
> -#define __SPIN_LOCK_UNLOCKED(lockp) PTHREAD_MUTEX_INITIALIZER
> -
> -static void spin_lock_init(spinlock_t *sp)
> -{
> -	if (pthread_mutex_init(sp, NULL) != 0) {
> -		perror("spin_lock_init:pthread_mutex_init");
> -		exit(-1);
> -	}
> -}
> -
> -static void spin_lock(spinlock_t *sp)
> -{
> -	if (pthread_mutex_lock(sp) != 0) {
> -		perror("spin_lock:pthread_mutex_lock");
> -		exit(-1);
> -	}
> -}
> -
> -static void spin_unlock(spinlock_t *sp)
> -{
> -	if (pthread_mutex_unlock(sp) != 0) {
> -		perror("spin_unlock:pthread_mutex_unlock");
> -		exit(-1);
> -	}
> -}
> -
> -#define spin_lock_irqsave(l, f) do { f = 1; spin_lock(l); } while (0)
> -#define spin_unlock_irqrestore(l, f) do { f = 0; spin_unlock(l); } while (0)
> -
> -/*
> - * Thread creation/destruction primitives.
> - */
> -
> -typedef pthread_t thread_id_t;
> -
> -#define NR_THREADS 128
> -
> -#define __THREAD_ID_MAP_EMPTY ((thread_id_t) 0)
> -#define __THREAD_ID_MAP_WAITING ((thread_id_t) 1)
> -thread_id_t __thread_id_map[NR_THREADS];
> -spinlock_t __thread_id_map_mutex;
> -
> -#define for_each_thread(t) \
> -	for (t = 0; t < NR_THREADS; t++)
> -
> -#define for_each_running_thread(t) \
> -	for (t = 0; t < NR_THREADS; t++) \
> -		if ((__thread_id_map[t] != __THREAD_ID_MAP_EMPTY) && \
> -		    (__thread_id_map[t] != __THREAD_ID_MAP_WAITING))
> -
> -pthread_key_t thread_id_key;
> -
> -static int __smp_thread_id(void)
> -{
> -	int i;
> -	thread_id_t tid = pthread_self();
> -
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == tid) {
> -			long v = i + 1;  /* must be non-NULL. */
> -
> -			if (pthread_setspecific(thread_id_key, (void *)v) != 0) {
> -				perror("pthread_setspecific");
> -				exit(-1);
> -			}
> -			return i;
> -		}
> -	}
> -	spin_lock(&__thread_id_map_mutex);
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == tid)
> -			spin_unlock(&__thread_id_map_mutex);
> -			return i;
> -	}
> -	spin_unlock(&__thread_id_map_mutex);
> -	fprintf(stderr, "smp_thread_id: Rogue thread, id: %d(%#x)\n",
> -			(int)tid, (int)tid);
> -	exit(-1);
> -}
> -
> -static int smp_thread_id(void)
> -{
> -	void *id;
> -
> -	id = pthread_getspecific(thread_id_key);
> -	if (id == NULL)
> -		return __smp_thread_id();
> -	return (long)(id - 1);
> -}
> -
> -static thread_id_t create_thread(void *(*func)(void *), void *arg)
> -{
> -	thread_id_t tid;
> -	int i;
> -
> -	spin_lock(&__thread_id_map_mutex);
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == __THREAD_ID_MAP_EMPTY)
> -			break;
> -	}
> -	if (i >= NR_THREADS) {
> -		spin_unlock(&__thread_id_map_mutex);
> -		fprintf(stderr, "Thread limit of %d exceeded!\n", NR_THREADS);
> -		exit(-1);
> -	}
> -	__thread_id_map[i] = __THREAD_ID_MAP_WAITING;
> -	spin_unlock(&__thread_id_map_mutex);
> -	if (pthread_create(&tid, NULL, func, arg) != 0) {
> -		perror("create_thread:pthread_create");
> -		exit(-1);
> -	}
> -	__thread_id_map[i] = tid;
> -	return tid;
> -}
> -
> -static void *wait_thread(thread_id_t tid)
> -{
> -	int i;
> -	void *vp;
> -
> -	for (i = 0; i < NR_THREADS; i++) {
> -		if (__thread_id_map[i] == tid)
> -			break;
> -	}
> -	if (i >= NR_THREADS){
> -		fprintf(stderr, "wait_thread: bad tid = %d(%#x)\n",
> -				(int)tid, (int)tid);
> -		exit(-1);
> -	}
> -	if (pthread_join(tid, &vp) != 0) {
> -		perror("wait_thread:pthread_join");
> -		exit(-1);
> -	}
> -	__thread_id_map[i] = __THREAD_ID_MAP_EMPTY;
> -	return vp;
> -}
> -
> -static void wait_all_threads(void)
> -{
> -	int i;
> -	thread_id_t tid;
> -
> -	for (i = 1; i < NR_THREADS; i++) {
> -		tid = __thread_id_map[i];
> -		if (tid != __THREAD_ID_MAP_EMPTY &&
> -		    tid != __THREAD_ID_MAP_WAITING)
> -			(void)wait_thread(tid);
> -	}
> -}
> -
> -#ifndef HAVE_CPU_SET_T
> -typedef unsigned long cpu_set_t;
> -# define CPU_ZERO(cpuset) do { *(cpuset) = 0; } while(0)
> -# define CPU_SET(cpu, cpuset) do { *(cpuset) |= (1UL << (cpu)); } while(0)
> -#endif
> -
> -static void run_on(int cpu)
> -{
> -#if HAVE_SCHED_SETAFFINITY
> -	cpu_set_t mask;
> -
> -	CPU_ZERO(&mask);
> -	CPU_SET(cpu, &mask);
> -#if SCHED_SETAFFINITY_ARGS == 2
> -	sched_setaffinity(0, &mask);
> -#else
> -	sched_setaffinity(0, sizeof(mask), &mask);
> -#endif
> -#endif /* HAVE_SCHED_SETAFFINITY */
> -}
> -
> -/*
> - * timekeeping -- very crude -- should use MONOTONIC...
> - */
> -
> -long long get_microseconds(void)
> -{
> -	struct timeval tv;
> -
> -	if (gettimeofday(&tv, NULL) != 0)
> -		abort();
> -	return ((long long)tv.tv_sec) * 1000000LL + (long long)tv.tv_usec;
> -}
> -
> -/*
> - * Per-thread variables.
> - */
> -
> -#define DEFINE_PER_THREAD(type, name) \
> -	struct { \
> -		__typeof__(type) v \
> -			__attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \
> -	} __per_thread_##name[NR_THREADS];
> -#define DECLARE_PER_THREAD(type, name) extern DEFINE_PER_THREAD(type, name)
> -
> -#define per_thread(name, thread) __per_thread_##name[thread].v
> -#define __get_thread_var(name) per_thread(name, smp_thread_id())
> -
> -#define init_per_thread(name, v) \
> -	do { \
> -		int __i_p_t_i; \
> -		for (__i_p_t_i = 0; __i_p_t_i < NR_THREADS; __i_p_t_i++) \
> -			per_thread(name, __i_p_t_i) = v; \
> -	} while (0)
> -
> -/*
> - * CPU traversal primitives.
> - */
> -
> -#ifndef NR_CPUS
> -#define NR_CPUS 16
> -#endif /* #ifndef NR_CPUS */
> -
> -#define for_each_possible_cpu(cpu) \
> -	for (cpu = 0; cpu < NR_CPUS; cpu++)
> -#define for_each_online_cpu(cpu) \
> -	for (cpu = 0; cpu < NR_CPUS; cpu++)
> -
> -/*
> - * Per-CPU variables.
> - */
> -
> -#define DEFINE_PER_CPU(type, name) \
> -	struct { \
> -		__typeof__(type) v \
> -			__attribute__((__aligned__(CAA_CACHE_LINE_SIZE))); \
> -	} __per_cpu_##name[NR_CPUS]
> -#define DECLARE_PER_CPU(type, name) extern DEFINE_PER_CPU(type, name)
> -
> -DEFINE_PER_THREAD(int, smp_processor_id);
> -
> -#define per_cpu(name, thread) __per_cpu_##name[thread].v
> -#define __get_cpu_var(name) per_cpu(name, smp_processor_id())
> -
> -#define init_per_cpu(name, v) \
> -	do { \
> -		int __i_p_c_i; \
> -		for (__i_p_c_i = 0; __i_p_c_i < NR_CPUS; __i_p_c_i++) \
> -			per_cpu(name, __i_p_c_i) = v; \
> -	} while (0)
> -
> -/*
> - * CPU state checking (crowbarred).
> - */
> -
> -#define idle_cpu(cpu) 0
> -#define in_softirq() 1
> -#define hardirq_count() 0
> -#define PREEMPT_SHIFT   0
> -#define SOFTIRQ_SHIFT   (PREEMPT_SHIFT + PREEMPT_BITS)
> -#define HARDIRQ_SHIFT   (SOFTIRQ_SHIFT + SOFTIRQ_BITS)
> -#define PREEMPT_BITS    8
> -#define SOFTIRQ_BITS    8
> -
> -/*
> - * CPU hotplug.
> - */
> -
> -struct notifier_block {
> -	int (*notifier_call)(struct notifier_block *, unsigned long, void *);
> -	struct notifier_block *next;
> -	int priority;
> -};
> -
> -#define CPU_ONLINE		0x0002 /* CPU (unsigned)v is up */
> -#define CPU_UP_PREPARE		0x0003 /* CPU (unsigned)v coming up */
> -#define CPU_UP_CANCELED		0x0004 /* CPU (unsigned)v NOT coming up */
> -#define CPU_DOWN_PREPARE	0x0005 /* CPU (unsigned)v going down */
> -#define CPU_DOWN_FAILED		0x0006 /* CPU (unsigned)v NOT going down */
> -#define CPU_DEAD		0x0007 /* CPU (unsigned)v dead */
> -#define CPU_DYING		0x0008 /* CPU (unsigned)v not running any task,
> -				        * not handling interrupts, soon dead */
> -#define CPU_POST_DEAD		0x0009 /* CPU (unsigned)v dead, cpu_hotplug
> -					* lock is dropped */
> -
> -/* Used for CPU hotplug events occuring while tasks are frozen due to a suspend
> - * operation in progress
> - */
> -#define CPU_TASKS_FROZEN	0x0010
> -
> -#define CPU_ONLINE_FROZEN	(CPU_ONLINE | CPU_TASKS_FROZEN)
> -#define CPU_UP_PREPARE_FROZEN	(CPU_UP_PREPARE | CPU_TASKS_FROZEN)
> -#define CPU_UP_CANCELED_FROZEN	(CPU_UP_CANCELED | CPU_TASKS_FROZEN)
> -#define CPU_DOWN_PREPARE_FROZEN	(CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
> -#define CPU_DOWN_FAILED_FROZEN	(CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
> -#define CPU_DEAD_FROZEN		(CPU_DEAD | CPU_TASKS_FROZEN)
> -#define CPU_DYING_FROZEN	(CPU_DYING | CPU_TASKS_FROZEN)
> -
> -/* Hibernation and suspend events */
> -#define PM_HIBERNATION_PREPARE	0x0001 /* Going to hibernate */
> -#define PM_POST_HIBERNATION	0x0002 /* Hibernation finished */
> -#define PM_SUSPEND_PREPARE	0x0003 /* Going to suspend the system */
> -#define PM_POST_SUSPEND		0x0004 /* Suspend finished */
> -#define PM_RESTORE_PREPARE	0x0005 /* Going to restore a saved image */
> -#define PM_POST_RESTORE		0x0006 /* Restore failed */
> -
> -#define NOTIFY_DONE		0x0000		/* Don't care */
> -#define NOTIFY_OK		0x0001		/* Suits me */
> -#define NOTIFY_STOP_MASK	0x8000		/* Don't call further */
> -#define NOTIFY_BAD		(NOTIFY_STOP_MASK|0x0002)
> -						/* Bad/Veto action */
> -/*
> - * Clean way to return from the notifier and stop further calls.
> - */
> -#define NOTIFY_STOP		(NOTIFY_OK|NOTIFY_STOP_MASK)
> -
> -/*
> - * Bug checks.
> - */
> -
> -#define BUG_ON(c) do { if (!(c)) abort(); } while (0)
> -
> -/*
> - * Initialization -- Must be called before calling any primitives.
> - */
> -
> -static void smp_init(void)
> -{
> -	int i;
> -
> -	spin_lock_init(&__thread_id_map_mutex);
> -	__thread_id_map[0] = pthread_self();
> -	for (i = 1; i < NR_THREADS; i++)
> -		__thread_id_map[i] = __THREAD_ID_MAP_EMPTY;
> -	init_per_thread(smp_processor_id, 0);
> -	if (pthread_key_create(&thread_id_key, NULL) != 0) {
> -		perror("pthread_key_create");
> -		exit(-1);
> -	}
> -}
> -
> -/* Taken from the Linux kernel source tree, so GPLv2-only!!! */
> -
> -#ifndef _LINUX_LIST_H
> -#define _LINUX_LIST_H
> -
> -#define LIST_POISON1  ((void *) 0x00100100)
> -#define LIST_POISON2  ((void *) 0x00200200)
> -
> -#if 0
> -
> -/*
> - * Simple doubly linked list implementation.
> - *
> - * Some of the internal functions ("__xxx") are useful when
> - * manipulating whole lists rather than single entries, as
> - * sometimes we already know the next/prev entries and we can
> - * generate better code by using them directly rather than
> - * using the generic single-entry routines.
> - */
> -
> -struct cds_list_head {
> -	struct cds_list_head *next, *prev;
> -};
> -
> -#define CDS_LIST_HEAD_INIT(name) { &(name), &(name) }
> -
> -#define CDS_LIST_HEAD(name) \
> -	struct cds_list_head name = CDS_LIST_HEAD_INIT(name)
> -
> -static inline void CDS_INIT_LIST_HEAD(struct cds_list_head *list)
> -{
> -	list->next = list;
> -	list->prev = list;
> -}
> -
> -/*
> - * Insert a new entry between two known consecutive entries.
> - *
> - * This is only for internal list manipulation where we know
> - * the prev/next entries already!
> - */
> -#ifndef CONFIG_DEBUG_LIST
> -static inline void __cds_list_add(struct cds_list_head *new,
> -			      struct cds_list_head *prev,
> -			      struct cds_list_head *next)
> -{
> -	next->prev = new;
> -	new->next = next;
> -	new->prev = prev;
> -	prev->next = new;
> -}
> -#else
> -extern void __cds_list_add(struct cds_list_head *new,
> -			      struct cds_list_head *prev,
> -			      struct cds_list_head *next);
> -#endif
> -
> -/**
> - * cds_list_add - add a new entry
> - * @new: new entry to be added
> - * @head: list head to add it after
> - *
> - * Insert a new entry after the specified head.
> - * This is good for implementing stacks.
> - */
> -static inline void cds_list_add(struct cds_list_head *new, struct cds_list_head *head)
> -{
> -	__cds_list_add(new, head, head->next);
> -}
> -
> -
> -/**
> - * cds_list_add_tail - add a new entry
> - * @new: new entry to be added
> - * @head: list head to add it before
> - *
> - * Insert a new entry before the specified head.
> - * This is useful for implementing queues.
> - */
> -static inline void cds_list_add_tail(struct cds_list_head *new, struct cds_list_head *head)
> -{
> -	__cds_list_add(new, head->prev, head);
> -}
> -
> -/*
> - * Delete a list entry by making the prev/next entries
> - * point to each other.
> - *
> - * This is only for internal list manipulation where we know
> - * the prev/next entries already!
> - */
> -static inline void __cds_list_del(struct cds_list_head * prev, struct cds_list_head * next)
> -{
> -	next->prev = prev;
> -	prev->next = next;
> -}
> -
> -/**
> - * cds_list_del - deletes entry from list.
> - * @entry: the element to delete from the list.
> - * Note: cds_list_empty() on entry does not return true after this, the entry is
> - * in an undefined state.
> - */
> -#ifndef CONFIG_DEBUG_LIST
> -static inline void cds_list_del(struct cds_list_head *entry)
> -{
> -	__cds_list_del(entry->prev, entry->next);
> -	entry->next = LIST_POISON1;
> -	entry->prev = LIST_POISON2;
> -}
> -#else
> -extern void cds_list_del(struct cds_list_head *entry);
> -#endif
> -
> -/**
> - * cds_list_replace - replace old entry by new one
> - * @old : the element to be replaced
> - * @new : the new element to insert
> - *
> - * If @old was empty, it will be overwritten.
> - */
> -static inline void cds_list_replace(struct cds_list_head *old,
> -				struct cds_list_head *new)
> -{
> -	new->next = old->next;
> -	new->next->prev = new;
> -	new->prev = old->prev;
> -	new->prev->next = new;
> -}
> -
> -static inline void cds_list_replace_init(struct cds_list_head *old,
> -					struct cds_list_head *new)
> -{
> -	cds_list_replace(old, new);
> -	CDS_INIT_LIST_HEAD(old);
> -}
> -
> -/**
> - * cds_list_del_init - deletes entry from list and reinitialize it.
> - * @entry: the element to delete from the list.
> - */
> -static inline void cds_list_del_init(struct cds_list_head *entry)
> -{
> -	__cds_list_del(entry->prev, entry->next);
> -	CDS_INIT_LIST_HEAD(entry);
> -}
> -
> -/**
> - * cds_list_move - delete from one list and add as another's head
> - * @list: the entry to move
> - * @head: the head that will precede our entry
> - */
> -static inline void cds_list_move(struct cds_list_head *list, struct cds_list_head *head)
> -{
> -	__cds_list_del(list->prev, list->next);
> -	cds_list_add(list, head);
> -}
> -
> -/**
> - * cds_list_move_tail - delete from one list and add as another's tail
> - * @list: the entry to move
> - * @head: the head that will follow our entry
> - */
> -static inline void cds_list_move_tail(struct cds_list_head *list,
> -				  struct cds_list_head *head)
> -{
> -	__cds_list_del(list->prev, list->next);
> -	cds_list_add_tail(list, head);
> -}
> -
> -/**
> - * list_is_last - tests whether @list is the last entry in list @head
> - * @list: the entry to test
> - * @head: the head of the list
> - */
> -static inline int list_is_last(const struct cds_list_head *list,
> -				const struct cds_list_head *head)
> -{
> -	return list->next == head;
> -}
> -
> -/**
> - * cds_list_empty - tests whether a list is empty
> - * @head: the list to test.
> - */
> -static inline int cds_list_empty(const struct cds_list_head *head)
> -{
> -	return head->next == head;
> -}
> -
> -/**
> - * cds_list_empty_careful - tests whether a list is empty and not being modified
> - * @head: the list to test
> - *
> - * Description:
> - * tests whether a list is empty _and_ checks that no other CPU might be
> - * in the process of modifying either member (next or prev)
> - *
> - * NOTE: using cds_list_empty_careful() without synchronization
> - * can only be safe if the only activity that can happen
> - * to the list entry is cds_list_del_init(). Eg. it cannot be used
> - * if another CPU could re-list_add() it.
> - */
> -static inline int cds_list_empty_careful(const struct cds_list_head *head)
> -{
> -	struct cds_list_head *next = head->next;
> -	return (next == head) && (next == head->prev);
> -}
> -
> -/**
> - * list_is_singular - tests whether a list has just one entry.
> - * @head: the list to test.
> - */
> -static inline int list_is_singular(const struct cds_list_head *head)
> -{
> -	return !list_empty(head) && (head->next == head->prev);
> -}
> -
> -static inline void __list_cut_position(struct cds_list_head *list,
> -		struct cds_list_head *head, struct cds_list_head *entry)
> -{
> -	struct cds_list_head *new_first = entry->next;
> -	list->next = head->next;
> -	list->next->prev = list;
> -	list->prev = entry;
> -	entry->next = list;
> -	head->next = new_first;
> -	new_first->prev = head;
> -}
> -
> -/**
> - * list_cut_position - cut a list into two
> - * @list: a new list to add all removed entries
> - * @head: a list with entries
> - * @entry: an entry within head, could be the head itself
> - *	and if so we won't cut the list
> - *
> - * This helper moves the initial part of @head, up to and
> - * including @entry, from @head to @list. You should
> - * pass on @entry an element you know is on @head. @list
> - * should be an empty list or a list you do not care about
> - * losing its data.
> - *
> - */
> -static inline void list_cut_position(struct cds_list_head *list,
> -		struct cds_list_head *head, struct cds_list_head *entry)
> -{
> -	if (cds_list_empty(head))
> -		return;
> -	if (list_is_singular(head) &&
> -		(head->next != entry && head != entry))
> -		return;
> -	if (entry == head)
> -		CDS_INIT_LIST_HEAD(list);
> -	else
> -		__list_cut_position(list, head, entry);
> -}
> -
> -static inline void __cds_list_splice(const struct cds_list_head *list,
> -				 struct cds_list_head *prev,
> -				 struct cds_list_head *next)
> -{
> -	struct cds_list_head *first = list->next;
> -	struct cds_list_head *last = list->prev;
> -
> -	first->prev = prev;
> -	prev->next = first;
> -
> -	last->next = next;
> -	next->prev = last;
> -}
> -
> -/**
> - * cds_list_splice - join two lists, this is designed for stacks
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - */
> -static inline void cds_list_splice(const struct cds_list_head *list,
> -				struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list))
> -		__cds_list_splice(list, head, head->next);
> -}
> -
> -/**
> - * cds_list_splice_tail - join two lists, each list being a queue
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - */
> -static inline void cds_list_splice_tail(struct cds_list_head *list,
> -				struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list))
> -		__cds_list_splice(list, head->prev, head);
> -}
> -
> -/**
> - * cds_list_splice_init - join two lists and reinitialise the emptied list.
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - *
> - * The list at @list is reinitialised
> - */
> -static inline void cds_list_splice_init(struct cds_list_head *list,
> -				    struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list)) {
> -		__cds_list_splice(list, head, head->next);
> -		CDS_INIT_LIST_HEAD(list);
> -	}
> -}
> -
> -/**
> - * cds_list_splice_tail_init - join two lists and reinitialise the emptied list
> - * @list: the new list to add.
> - * @head: the place to add it in the first list.
> - *
> - * Each of the lists is a queue.
> - * The list at @list is reinitialised
> - */
> -static inline void cds_list_splice_tail_init(struct cds_list_head *list,
> -					 struct cds_list_head *head)
> -{
> -	if (!cds_list_empty(list)) {
> -		__cds_list_splice(list, head->prev, head);
> -		CDS_INIT_LIST_HEAD(list);
> -	}
> -}
> -
> -/**
> - * cds_list_entry - get the struct for this entry
> - * @ptr:	the &struct cds_list_head pointer.
> - * @type:	the type of the struct this is embedded in.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_entry(ptr, type, member) \
> -	caa_container_of(ptr, type, member)
> -
> -/**
> - * list_first_entry - get the first element from a list
> - * @ptr:	the list head to take the element from.
> - * @type:	the type of the struct this is embedded in.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Note, that list is expected to be not empty.
> - */
> -#define list_first_entry(ptr, type, member) \
> -	cds_list_entry((ptr)->next, type, member)
> -
> -/**
> - * cds_list_for_each	-	iterate over a list
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each(pos, head) \
> -	for (pos = (head)->next; prefetch(pos->next), pos != (head); \
> -        	pos = pos->next)
> -
> -/**
> - * __cds_list_for_each	-	iterate over a list
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @head:	the head for your list.
> - *
> - * This variant differs from cds_list_for_each() in that it's the
> - * simplest possible list iteration code, no prefetching is done.
> - * Use this for code that knows the list to be very short (empty
> - * or 1 entry) most of the time.
> - */
> -#define __cds_list_for_each(pos, head) \
> -	for (pos = (head)->next; pos != (head); pos = pos->next)
> -
> -/**
> - * cds_list_for_each_prev	-	iterate over a list backwards
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each_prev(pos, head) \
> -	for (pos = (head)->prev; prefetch(pos->prev), pos != (head); \
> -        	pos = pos->prev)
> -
> -/**
> - * cds_list_for_each_safe - iterate over a list safe against removal of list entry
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @n:		another &struct cds_list_head to use as temporary storage
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each_safe(pos, n, head) \
> -	for (pos = (head)->next, n = pos->next; pos != (head); \
> -		pos = n, n = pos->next)
> -
> -/**
> - * cds_list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
> - * @pos:	the &struct cds_list_head to use as a loop cursor.
> - * @n:		another &struct cds_list_head to use as temporary storage
> - * @head:	the head for your list.
> - */
> -#define cds_list_for_each_prev_safe(pos, n, head) \
> -	for (pos = (head)->prev, n = pos->prev; \
> -	     prefetch(pos->prev), pos != (head); \
> -	     pos = n, n = pos->prev)
> -
> -/**
> - * cds_list_for_each_entry	-	iterate over list of given type
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_for_each_entry(pos, head, member)				\
> -	for (pos = cds_list_entry((head)->next, typeof(*pos), member);	\
> -	     prefetch(pos->member.next), &pos->member != (head); 	\
> -	     pos = cds_list_entry(pos->member.next, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_reverse - iterate backwards over list of given type.
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_for_each_entry_reverse(pos, head, member)			\
> -	for (pos = cds_list_entry((head)->prev, typeof(*pos), member);	\
> -	     prefetch(pos->member.prev), &pos->member != (head); 	\
> -	     pos = cds_list_entry(pos->member.prev, typeof(*pos), member))
> -
> -/**
> - * list_prepare_entry - prepare a pos entry for use in cds_list_for_each_entry_continue()
> - * @pos:	the type * to use as a start point
> - * @head:	the head of the list
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Prepares a pos entry for use as a start point in cds_list_for_each_entry_continue().
> - */
> -#define list_prepare_entry(pos, head, member) \
> -	((pos) ? : cds_list_entry(head, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_continue - continue iteration over list of given type
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Continue to iterate over list of given type, continuing after
> - * the current position.
> - */
> -#define cds_list_for_each_entry_continue(pos, head, member) 		\
> -	for (pos = cds_list_entry(pos->member.next, typeof(*pos), member);	\
> -	     prefetch(pos->member.next), &pos->member != (head);	\
> -	     pos = cds_list_entry(pos->member.next, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_continue_reverse - iterate backwards from the given point
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Start to iterate over list of given type backwards, continuing after
> - * the current position.
> - */
> -#define cds_list_for_each_entry_continue_reverse(pos, head, member)		\
> -	for (pos = cds_list_entry(pos->member.prev, typeof(*pos), member);	\
> -	     prefetch(pos->member.prev), &pos->member != (head);	\
> -	     pos = cds_list_entry(pos->member.prev, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_from - iterate over list of given type from the current point
> - * @pos:	the type * to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate over list of given type, continuing from current position.
> - */
> -#define cds_list_for_each_entry_from(pos, head, member) 			\
> -	for (; prefetch(pos->member.next), &pos->member != (head);	\
> -	     pos = cds_list_entry(pos->member.next, typeof(*pos), member))
> -
> -/**
> - * cds_list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - */
> -#define cds_list_for_each_entry_safe(pos, n, head, member)			\
> -	for (pos = cds_list_entry((head)->next, typeof(*pos), member),	\
> -		n = cds_list_entry(pos->member.next, typeof(*pos), member);	\
> -	     &pos->member != (head); 					\
> -	     pos = n, n = cds_list_entry(n->member.next, typeof(*n), member))
> -
> -/**
> - * cds_list_for_each_entry_safe_continue
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate over list of given type, continuing after current point,
> - * safe against removal of list entry.
> - */
> -#define cds_list_for_each_entry_safe_continue(pos, n, head, member) 		\
> -	for (pos = cds_list_entry(pos->member.next, typeof(*pos), member), 		\
> -		n = cds_list_entry(pos->member.next, typeof(*pos), member);		\
> -	     &pos->member != (head);						\
> -	     pos = n, n = cds_list_entry(n->member.next, typeof(*n), member))
> -
> -/**
> - * cds_list_for_each_entry_safe_from
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate over list of given type from current point, safe against
> - * removal of list entry.
> - */
> -#define cds_list_for_each_entry_safe_from(pos, n, head, member) 			\
> -	for (n = cds_list_entry(pos->member.next, typeof(*pos), member);		\
> -	     &pos->member != (head);						\
> -	     pos = n, n = cds_list_entry(n->member.next, typeof(*n), member))
> -
> -/**
> - * cds_list_for_each_entry_safe_reverse
> - * @pos:	the type * to use as a loop cursor.
> - * @n:		another type * to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the list_struct within the struct.
> - *
> - * Iterate backwards over list of given type, safe against removal
> - * of list entry.
> - */
> -#define cds_list_for_each_entry_safe_reverse(pos, n, head, member)		\
> -	for (pos = cds_list_entry((head)->prev, typeof(*pos), member),	\
> -		n = cds_list_entry(pos->member.prev, typeof(*pos), member);	\
> -	     &pos->member != (head); 					\
> -	     pos = n, n = cds_list_entry(n->member.prev, typeof(*n), member))
> -
> -#endif //0
> -
> -/*
> - * Double linked lists with a single pointer list head.
> - * Mostly useful for hash tables where the two pointer list head is
> - * too wasteful.
> - * You lose the ability to access the tail in O(1).
> - */
> -
> -struct cds_hlist_head {
> -	struct cds_hlist_node *first;
> -};
> -
> -struct cds_hlist_node {
> -	struct cds_hlist_node *next, **pprev;
> -};
> -
> -#define HLIST_HEAD_INIT { .first = NULL }
> -#define HLIST_HEAD(name) struct cds_hlist_head name = {  .first = NULL }
> -#define CDS_INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
> -static inline void INIT_HLIST_NODE(struct cds_hlist_node *h)
> -{
> -	h->next = NULL;
> -	h->pprev = NULL;
> -}
> -
> -static inline int hlist_unhashed(const struct cds_hlist_node *h)
> -{
> -	return !h->pprev;
> -}
> -
> -static inline int hlist_empty(const struct cds_hlist_head *h)
> -{
> -	return !h->first;
> -}
> -
> -static inline void __cds_hlist_del(struct cds_hlist_node *n)
> -{
> -	struct cds_hlist_node *next = n->next;
> -	struct cds_hlist_node **pprev = n->pprev;
> -	*pprev = next;
> -	if (next)
> -		next->pprev = pprev;
> -}
> -
> -static inline void cds_hlist_del(struct cds_hlist_node *n)
> -{
> -	__cds_hlist_del(n);
> -	n->next = LIST_POISON1;
> -	n->pprev = LIST_POISON2;
> -}
> -
> -static inline void cds_hlist_del_init(struct cds_hlist_node *n)
> -{
> -	if (!hlist_unhashed(n)) {
> -		__cds_hlist_del(n);
> -		INIT_HLIST_NODE(n);
> -	}
> -}
> -
> -static inline void cds_hlist_add_head(struct cds_hlist_node *n, struct cds_hlist_head *h)
> -{
> -	struct cds_hlist_node *first = h->first;
> -	n->next = first;
> -	if (first)
> -		first->pprev = &n->next;
> -	h->first = n;
> -	n->pprev = &h->first;
> -}
> -
> -/* next must be != NULL */
> -static inline void hlist_add_before(struct cds_hlist_node *n,
> -					struct cds_hlist_node *next)
> -{
> -	n->pprev = next->pprev;
> -	n->next = next;
> -	next->pprev = &n->next;
> -	*(n->pprev) = n;
> -}
> -
> -static inline void hlist_add_after(struct cds_hlist_node *n,
> -					struct cds_hlist_node *next)
> -{
> -	next->next = n->next;
> -	n->next = next;
> -	next->pprev = &n->next;
> -
> -	if(next->next)
> -		next->next->pprev  = &next->next;
> -}
> -
> -/*
> - * Move a list from one list head to another. Fixup the pprev
> - * reference of the first entry if it exists.
> - */
> -static inline void hlist_move_list(struct cds_hlist_head *old,
> -				   struct cds_hlist_head *new)
> -{
> -	new->first = old->first;
> -	if (new->first)
> -		new->first->pprev = &new->first;
> -	old->first = NULL;
> -}
> -
> -#define cds_hlist_entry(ptr, type, member) caa_container_of(ptr,type,member)
> -
> -#define cds_hlist_for_each(pos, head) \
> -	for (pos = (head)->first; pos && ({ prefetch(pos->next); 1; }); \
> -	     pos = pos->next)
> -
> -#define cds_hlist_for_each_safe(pos, n, head) \
> -	for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
> -	     pos = n)
> -
> -/**
> - * cds_hlist_for_each_entry	- iterate over list of given type
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @head:	the head for your list.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry(tpos, pos, head, member)			 \
> -	for (pos = (head)->first;					 \
> -	     pos && ({ prefetch(pos->next); 1;}) &&			 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = pos->next)
> -
> -/**
> - * cds_hlist_for_each_entry_continue - iterate over a hlist continuing after current point
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry_continue(tpos, pos, member)		 \
> -	for (pos = (pos)->next;						 \
> -	     pos && ({ prefetch(pos->next); 1;}) &&			 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = pos->next)
> -
> -/**
> - * cds_hlist_for_each_entry_from - iterate over a hlist continuing from current point
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry_from(tpos, pos, member)			 \
> -	for (; pos && ({ prefetch(pos->next); 1;}) &&			 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = pos->next)
> -
> -/**
> - * cds_hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
> - * @tpos:	the type * to use as a loop cursor.
> - * @pos:	the &struct cds_hlist_node to use as a loop cursor.
> - * @n:		another &struct cds_hlist_node to use as temporary storage
> - * @head:	the head for your list.
> - * @member:	the name of the cds_hlist_node within the struct.
> - */
> -#define cds_hlist_for_each_entry_safe(tpos, pos, n, head, member) 		 \
> -	for (pos = (head)->first;					 \
> -	     pos && ({ n = pos->next; 1; }) && 				 \
> -		({ tpos = cds_hlist_entry(pos, typeof(*tpos), member); 1;}); \
> -	     pos = n)
> -
> -#endif
> -
> -#endif
> -- 
> 1.7.6
> 
> 
> 
> _______________________________________________
> ltt-dev mailing list
> ltt-dev at lists.casi.polymtl.ca
> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
> 

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com




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