Imported Upstream version 16.11

Change-Id: I1944c65ddc88a9ad70f8c0eb6731552b84fbcb77
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

3 files changed, 0 insertions, 412 deletions

diff --git a/lib/librte_vhost/eventfd_link/Makefile b/lib/librte_vhost/eventfd_link/Makefile
deleted file mode 100644
index 3140e8bf..00000000
--- a/lib/librte_vhost/eventfd_link/Makefile
+++ /dev/null
@@ -1,41 +0,0 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
-#   All rights reserved.
-#
-#   Redistribution and use in source and binary forms, with or without
-#   modification, are permitted provided that the following conditions
-#   are met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-#       notice, this list of conditions and the following disclaimer in
-#       the documentation and/or other materials provided with the
-#       distribution.
-#     * Neither the name of Intel Corporation nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-RTE_KERNELDIR ?= /lib/modules/$(shell uname -r)/build
-
-obj-m += eventfd_link.o
-
-
-all:
-	make -C $(RTE_KERNELDIR) M=$(PWD) modules
-
-clean:
-	make -C $(RTE_KERNELDIR) M=$(PWD) clean
diff --git a/lib/librte_vhost/eventfd_link/eventfd_link.c b/lib/librte_vhost/eventfd_link/eventfd_link.c
deleted file mode 100644
index 4b05b5a8..00000000
--- a/lib/librte_vhost/eventfd_link/eventfd_link.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/*-
- * GPL LICENSE SUMMARY
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of version 2 of the GNU General Public License as
- *   published by the Free Software Foundation.
- *
- *   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., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *   The full GNU General Public License is included in this distribution
- *   in the file called LICENSE.GPL.
- *
- *   Contact Information:
- *   Intel Corporation
- */
-
-#include <linux/miscdevice.h>
-#include <linux/module.h>
-#include <linux/file.h>
-#include <linux/fdtable.h>
-#include <linux/syscalls.h>
-
-#include "eventfd_link.h"
-
-
-/*
- * get_files_struct is copied from fs/file.c
- */
-struct files_struct *
-get_files_struct(struct task_struct *task)
-{
-	struct files_struct *files;
-
-	task_lock(task);
-	files = task->files;
-	if (files)
-		atomic_inc(&files->count);
-	task_unlock(task);
-
-	return files;
-}
-
-/*
- * put_files_struct is extracted from fs/file.c
- */
-void
-put_files_struct(struct files_struct *files)
-{
-	if (atomic_dec_and_test(&files->count))
-		BUG();
-}
-
-static struct file *
-fget_from_files(struct files_struct *files, unsigned fd)
-{
-	struct file *file;
-
-	rcu_read_lock();
-	file = fcheck_files(files, fd);
-	if (file) {
-		if (file->f_mode & FMODE_PATH ||
-			!atomic_long_inc_not_zero(&file->f_count)) {
-
-			file = NULL;
-		}
-	}
-	rcu_read_unlock();
-
-	return file;
-}
-
-static long
-eventfd_link_ioctl_copy2(unsigned long arg)
-{
-	void __user *argp = (void __user *) arg;
-	struct task_struct *task_target = NULL;
-	struct file *file;
-	struct files_struct *files;
-	struct eventfd_copy2 eventfd_copy2;
-	long ret = -EFAULT;
-
-	if (copy_from_user(&eventfd_copy2, argp, sizeof(struct eventfd_copy2)))
-		goto out;
-
-	/*
-	 * Find the task struct for the target pid
-	 */
-	ret = -ESRCH;
-
-	task_target =
-		get_pid_task(find_vpid(eventfd_copy2.pid), PIDTYPE_PID);
-	if (task_target == NULL) {
-		pr_info("Unable to find pid %d\n", eventfd_copy2.pid);
-		goto out;
-	}
-
-	ret = -ESTALE;
-	files = get_files_struct(task_target);
-	if (files == NULL) {
-		pr_info("Failed to get target files struct\n");
-		goto out_task;
-	}
-
-	ret = -EBADF;
-	file = fget_from_files(files, eventfd_copy2.fd);
-	put_files_struct(files);
-
-	if (file == NULL) {
-		pr_info("Failed to get fd %d from target\n", eventfd_copy2.fd);
-		goto out_task;
-	}
-
-	/*
-	 * Install the file struct from the target process into the
-	 * newly allocated file desciptor of the source process.
-	 */
-	ret = get_unused_fd_flags(eventfd_copy2.flags);
-	if (ret < 0) {
-		fput(file);
-		goto out_task;
-	}
-	fd_install(ret, file);
-
-out_task:
-	put_task_struct(task_target);
-out:
-	return ret;
-}
-
-static long
-eventfd_link_ioctl_copy(unsigned long arg)
-{
-	void __user *argp = (void __user *) arg;
-	struct task_struct *task_target = NULL;
-	struct file *file;
-	struct files_struct *files;
-	struct fdtable *fdt;
-	struct eventfd_copy eventfd_copy;
-	long ret = -EFAULT;
-
-	if (copy_from_user(&eventfd_copy, argp, sizeof(struct eventfd_copy)))
-		goto out;
-
-	/*
-	 * Find the task struct for the target pid
-	 */
-	ret = -ESRCH;
-
-	task_target =
-		get_pid_task(find_vpid(eventfd_copy.target_pid), PIDTYPE_PID);
-	if (task_target == NULL) {
-		pr_info("Unable to find pid %d\n", eventfd_copy.target_pid);
-		goto out;
-	}
-
-	ret = -ESTALE;
-	files = get_files_struct(current);
-	if (files == NULL) {
-		pr_info("Failed to get current files struct\n");
-		goto out_task;
-	}
-
-	ret = -EBADF;
-	file = fget_from_files(files, eventfd_copy.source_fd);
-
-	if (file == NULL) {
-		pr_info("Failed to get fd %d from source\n",
-			eventfd_copy.source_fd);
-		put_files_struct(files);
-		goto out_task;
-	}
-
-	/*
-	 * Release the existing eventfd in the source process
-	 */
-	spin_lock(&files->file_lock);
-	fput(file);
-	filp_close(file, files);
-	fdt = files_fdtable(files);
-	fdt->fd[eventfd_copy.source_fd] = NULL;
-	spin_unlock(&files->file_lock);
-
-	put_files_struct(files);
-
-	/*
-	 * Find the file struct associated with the target fd.
-	 */
-
-	ret = -ESTALE;
-	files = get_files_struct(task_target);
-	if (files == NULL) {
-		pr_info("Failed to get target files struct\n");
-		goto out_task;
-	}
-
-	ret = -EBADF;
-	file = fget_from_files(files, eventfd_copy.target_fd);
-	put_files_struct(files);
-
-	if (file == NULL) {
-		pr_info("Failed to get fd %d from target\n",
-			eventfd_copy.target_fd);
-		goto out_task;
-	}
-
-	/*
-	 * Install the file struct from the target process into the
-	 * file desciptor of the source process,
-	 */
-
-	fd_install(eventfd_copy.source_fd, file);
-	ret = 0;
-
-out_task:
-	put_task_struct(task_target);
-out:
-	return ret;
-}
-
-static long
-eventfd_link_ioctl(struct file *f, unsigned int ioctl, unsigned long arg)
-{
-	long ret = -ENOIOCTLCMD;
-
-	switch (ioctl) {
-	case EVENTFD_COPY:
-		ret = eventfd_link_ioctl_copy(arg);
-		break;
-	case EVENTFD_COPY2:
-		ret = eventfd_link_ioctl_copy2(arg);
-		break;
-	}
-
-	return ret;
-}
-
-static const struct file_operations eventfd_link_fops = {
-	.owner = THIS_MODULE,
-	.unlocked_ioctl = eventfd_link_ioctl,
-};
-
-
-static struct miscdevice eventfd_link_misc = {
-	.minor = MISC_DYNAMIC_MINOR,
-	.name = "eventfd-link",
-	.fops = &eventfd_link_fops,
-};
-
-static int __init
-eventfd_link_init(void)
-{
-	return misc_register(&eventfd_link_misc);
-}
-
-module_init(eventfd_link_init);
-
-static void __exit
-eventfd_link_exit(void)
-{
-	misc_deregister(&eventfd_link_misc);
-}
-
-module_exit(eventfd_link_exit);
-
-MODULE_VERSION("0.0.1");
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Anthony Fee");
-MODULE_DESCRIPTION("Link eventfd");
-MODULE_ALIAS("devname:eventfd-link");
diff --git a/lib/librte_vhost/eventfd_link/eventfd_link.h b/lib/librte_vhost/eventfd_link/eventfd_link.h
deleted file mode 100644
index 5ebc20b8..00000000
--- a/lib/librte_vhost/eventfd_link/eventfd_link.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*-
- *  This file is provided under a dual BSD/GPLv2 license.  When using or
- *  redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of version 2 of the GNU General Public License as
- *   published by the Free Software Foundation.
- *
- *   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., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *   The full GNU General Public License is included in this distribution
- *   in the file called LICENSE.GPL.
- *
- *   Contact Information:
- *   Intel Corporation
- *
- * BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *   Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *   Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in
- *   the documentation and/or other materials provided with the
- *   distribution.
- *   Neither the name of Intel Corporation nor the names of its
- *   contributors may be used to endorse or promote products derived
- *   from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef _EVENTFD_LINK_H_
-#define _EVENTFD_LINK_H_
-
-/*
- * arguements for the EVENTFD_COPY ioctl
- */
-struct eventfd_copy {
-	unsigned target_fd; /* fd in the target pid */
-	unsigned source_fd; /* fd in the calling pid */
-	pid_t target_pid; /* pid of the target pid */
-};
-
-/*
- * ioctl to copy an fd entry in calling process to an fd in a target process
- * NOTE: this one should be
- * #define EVENTFD_COPY _IOWR('D', 1, struct eventfd_copy) actually
- */
-#define EVENTFD_COPY 1
-
-/*
- * arguments for the EVENTFD_COPY2 ioctl
- */
-struct eventfd_copy2 {
-	unsigned fd; /* fd to steal */
-	pid_t pid; /* pid of the process to steal from */
-	unsigned flags; /* flags to allocate new fd with */
-};
-
-/*
- * ioctl to copy an fd entry from the target process into newly allocated
- * fd in the calling process
- */
-#define EVENTFD_COPY2 _IOW('D', 2, struct eventfd_copy2)
-
-#endif /* _EVENTFD_LINK_H_ */