1 files changed, 0 insertions, 270 deletions
diff --git a/libdde_linux26/contrib/kernel/.svn/text-base/kthread.c.svn-base b/libdde_linux26/contrib/kernel/.svn/text-base/kthread.c.svn-base
deleted file mode 100644
index 4fbc456f..00000000
--- a/libdde_linux26/contrib/kernel/.svn/text-base/kthread.c.svn-base
+++ /dev/null
@@ -1,270 +0,0 @@
-/* Kernel thread helper functions.
- *   Copyright (C) 2004 IBM Corporation, Rusty Russell.
- *
- * Creation is done via kthreadd, so that we get a clean environment
- * even if we're invoked from userspace (think modprobe, hotplug cpu,
- * etc.).
- */
-#include <linux/sched.h>
-#include <linux/kthread.h>
-#include <linux/completion.h>
-#include <linux/err.h>
-#include <linux/unistd.h>
-#include <linux/file.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <trace/sched.h>
-
-#define KTHREAD_NICE_LEVEL (-5)
-
-static DEFINE_SPINLOCK(kthread_create_lock);
-static LIST_HEAD(kthread_create_list);
-struct task_struct *kthreadd_task;
-
-DEFINE_TRACE(sched_kthread_stop);
-DEFINE_TRACE(sched_kthread_stop_ret);
-
-struct kthread_create_info
-{
-	/* Information passed to kthread() from kthreadd. */
-	int (*threadfn)(void *data);
-	void *data;
-	struct completion started;
-
-	/* Result passed back to kthread_create() from kthreadd. */
-	struct task_struct *result;
-	struct completion done;
-
-	struct list_head list;
-};
-
-struct kthread_stop_info
-{
-	struct task_struct *k;
-	int err;
-	struct completion done;
-};
-
-/* Thread stopping is done by setthing this var: lock serializes
- * multiple kthread_stop calls. */
-static DEFINE_MUTEX(kthread_stop_lock);
-static struct kthread_stop_info kthread_stop_info;
-
-/**
- * kthread_should_stop - should this kthread return now?
- *
- * When someone calls kthread_stop() on your kthread, it will be woken
- * and this will return true.  You should then return, and your return
- * value will be passed through to kthread_stop().
- */
-int kthread_should_stop(void)
-{
-	return (kthread_stop_info.k == current);
-}
-EXPORT_SYMBOL(kthread_should_stop);
-
-static int kthread(void *_create)
-{
-	struct kthread_create_info *create = _create;
-	int (*threadfn)(void *data);
-	void *data;
-	int ret = -EINTR;
-
-	/* Copy data: it's on kthread's stack */
-	threadfn = create->threadfn;
-	data = create->data;
-
-	/* OK, tell user we're spawned, wait for stop or wakeup */
-	__set_current_state(TASK_UNINTERRUPTIBLE);
-	complete(&create->started);
-	schedule();
-
-	if (!kthread_should_stop())
-		ret = threadfn(data);
-
-	/* It might have exited on its own, w/o kthread_stop.  Check. */
-	if (kthread_should_stop()) {
-		kthread_stop_info.err = ret;
-		complete(&kthread_stop_info.done);
-	}
-	return 0;
-}
-
-static void create_kthread(struct kthread_create_info *create)
-{
-	int pid;
-
-	/* We want our own signal handler (we take no signals by default). */
-	pid = kernel_thread(kthread, create, CLONE_FS | CLONE_FILES | SIGCHLD);
-	if (pid < 0) {
-		create->result = ERR_PTR(pid);
-	} else {
-		struct sched_param param = { .sched_priority = 0 };
-		wait_for_completion(&create->started);
-		read_lock(&tasklist_lock);
-		create->result = find_task_by_pid_ns(pid, &init_pid_ns);
-		read_unlock(&tasklist_lock);
-		/*
-		 * root may have changed our (kthreadd's) priority or CPU mask.
-		 * The kernel thread should not inherit these properties.
-		 */
-		sched_setscheduler(create->result, SCHED_NORMAL, &param);
-		set_user_nice(create->result, KTHREAD_NICE_LEVEL);
-		set_cpus_allowed_ptr(create->result, CPU_MASK_ALL_PTR);
-	}
-	complete(&create->done);
-}
-
-/**
- * kthread_create - create a kthread.
- * @threadfn: the function to run until signal_pending(current).
- * @data: data ptr for @threadfn.
- * @namefmt: printf-style name for the thread.
- *
- * Description: This helper function creates and names a kernel
- * thread.  The thread will be stopped: use wake_up_process() to start
- * it.  See also kthread_run(), kthread_create_on_cpu().
- *
- * When woken, the thread will run @threadfn() with @data as its
- * argument. @threadfn() can either call do_exit() directly if it is a
- * standalone thread for which noone will call kthread_stop(), or
- * return when 'kthread_should_stop()' is true (which means
- * kthread_stop() has been called).  The return value should be zero
- * or a negative error number; it will be passed to kthread_stop().
- *
- * Returns a task_struct or ERR_PTR(-ENOMEM).
- */
-struct task_struct *kthread_create(int (*threadfn)(void *data),
-				   void *data,
-				   const char namefmt[],
-				   ...)
-{
-	struct kthread_create_info create;
-
-	create.threadfn = threadfn;
-	create.data = data;
-	init_completion(&create.started);
-	init_completion(&create.done);
-
-	spin_lock(&kthread_create_lock);
-	list_add_tail(&create.list, &kthread_create_list);
-	spin_unlock(&kthread_create_lock);
-
-	wake_up_process(kthreadd_task);
-	wait_for_completion(&create.done);
-
-	if (!IS_ERR(create.result)) {
-		va_list args;
-		va_start(args, namefmt);
-		vsnprintf(create.result->comm, sizeof(create.result->comm),
-			  namefmt, args);
-		va_end(args);
-	}
-	return create.result;
-}
-EXPORT_SYMBOL(kthread_create);
-
-/**
- * kthread_bind - bind a just-created kthread to a cpu.
- * @k: thread created by kthread_create().
- * @cpu: cpu (might not be online, must be possible) for @k to run on.
- *
- * Description: This function is equivalent to set_cpus_allowed(),
- * except that @cpu doesn't need to be online, and the thread must be
- * stopped (i.e., just returned from kthread_create()).
- */
-void kthread_bind(struct task_struct *k, unsigned int cpu)
-{
-	/* Must have done schedule() in kthread() before we set_task_cpu */
-	if (!wait_task_inactive(k, TASK_UNINTERRUPTIBLE)) {
-		WARN_ON(1);
-		return;
-	}
-	set_task_cpu(k, cpu);
-	k->cpus_allowed = cpumask_of_cpu(cpu);
-	k->rt.nr_cpus_allowed = 1;
-	k->flags |= PF_THREAD_BOUND;
-}
-EXPORT_SYMBOL(kthread_bind);
-
-/**
- * kthread_stop - stop a thread created by kthread_create().
- * @k: thread created by kthread_create().
- *
- * Sets kthread_should_stop() for @k to return true, wakes it, and
- * waits for it to exit.  Your threadfn() must not call do_exit()
- * itself if you use this function!  This can also be called after
- * kthread_create() instead of calling wake_up_process(): the thread
- * will exit without calling threadfn().
- *
- * Returns the result of threadfn(), or %-EINTR if wake_up_process()
- * was never called.
- */
-int kthread_stop(struct task_struct *k)
-{
-	int ret;
-
-	mutex_lock(&kthread_stop_lock);
-
-	/* It could exit after stop_info.k set, but before wake_up_process. */
-	get_task_struct(k);
-
-	trace_sched_kthread_stop(k);
-
-	/* Must init completion *before* thread sees kthread_stop_info.k */
-	init_completion(&kthread_stop_info.done);
-	smp_wmb();
-
-	/* Now set kthread_should_stop() to true, and wake it up. */
-	kthread_stop_info.k = k;
-	wake_up_process(k);
-	put_task_struct(k);
-
-	/* Once it dies, reset stop ptr, gather result and we're done. */
-	wait_for_completion(&kthread_stop_info.done);
-	kthread_stop_info.k = NULL;
-	ret = kthread_stop_info.err;
-	mutex_unlock(&kthread_stop_lock);
-
-	trace_sched_kthread_stop_ret(ret);
-
-	return ret;
-}
-EXPORT_SYMBOL(kthread_stop);
-
-int kthreadd(void *unused)
-{
-	struct task_struct *tsk = current;
-
-	/* Setup a clean context for our children to inherit. */
-	set_task_comm(tsk, "kthreadd");
-	ignore_signals(tsk);
-	set_user_nice(tsk, KTHREAD_NICE_LEVEL);
-	set_cpus_allowed_ptr(tsk, CPU_MASK_ALL_PTR);
-
-	current->flags |= PF_NOFREEZE | PF_FREEZER_NOSIG;
-
-	for (;;) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (list_empty(&kthread_create_list))
-			schedule();
-		__set_current_state(TASK_RUNNING);
-
-		spin_lock(&kthread_create_lock);
-		while (!list_empty(&kthread_create_list)) {
-			struct kthread_create_info *create;
-
-			create = list_entry(kthread_create_list.next,
-					    struct kthread_create_info, list);
-			list_del_init(&create->list);
-			spin_unlock(&kthread_create_lock);
-
-			create_kthread(create);
-
-			spin_lock(&kthread_create_lock);
-		}
-		spin_unlock(&kthread_create_lock);
-	}
-
-	return 0;
-}