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From:   NeilBrown <neilb@suse.com>
To:     Oleg Drokin <oleg.drokin@intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        James Simmons <jsimmons@infradead.org>,
        Andreas Dilger <andreas.dilger@intel.com>
Date:   Wed, 06 Jun 2018 16:05:19 +1000
Subject: [PATCH 08/11] staging: lustre: obdclass: move linux/linux-foo.c to
 foo.c
Cc:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Lustre Development List <lustre-devel@lists.lustre.org>
Message-ID: <152826511916.16761.16388038372000609798.stgit@noble>
In-Reply-To: <152826510267.16761.14361003167157833896.stgit@noble>
References: <152826510267.16761.14361003167157833896.stgit@noble>
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

As lustre is now linux-only, having this linux sub-directory
with files named "linux-something" is just noise.  Move them
to a more friendly name.

Signed-off-by: NeilBrown <neilb@suse.com>
---
 drivers/staging/lustre/lustre/obdclass/Makefile    |    2 
 .../lustre/lustre/obdclass/linux/linux-module.c    |  514 --------------------
 .../lustre/lustre/obdclass/linux/linux-sysctl.c    |  162 ------
 drivers/staging/lustre/lustre/obdclass/module.c    |  514 ++++++++++++++++++++
 drivers/staging/lustre/lustre/obdclass/sysctl.c    |  162 ++++++
 5 files changed, 677 insertions(+), 677 deletions(-)
 delete mode 100644 drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
 delete mode 100644 drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
 create mode 100644 drivers/staging/lustre/lustre/obdclass/module.c
 create mode 100644 drivers/staging/lustre/lustre/obdclass/sysctl.c

diff --git a/drivers/staging/lustre/lustre/obdclass/Makefile b/drivers/staging/lustre/lustre/obdclass/Makefile
index e3fa9acff4c4..e36ba2167d10 100644
--- a/drivers/staging/lustre/lustre/obdclass/Makefile
+++ b/drivers/staging/lustre/lustre/obdclass/Makefile
@@ -4,7 +4,7 @@ subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
 obj-$(CONFIG_LUSTRE_FS) += obdclass.o
 
-obdclass-y := linux/linux-module.o linux/linux-sysctl.o \
+obdclass-y := module.o sysctl.o \
 	      llog.o llog_cat.o llog_obd.o llog_swab.o class_obd.o debug.o \
 	      genops.o uuid.o lprocfs_status.o lprocfs_counters.o \
 	      lustre_handles.o lustre_peer.o statfs_pack.o linkea.o \
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
deleted file mode 100644
index 9c800580053b..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ /dev/null
@@ -1,514 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * 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 version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * lustre/obdclass/linux/linux-module.c
- *
- * Object Devices Class Driver
- * These are the only exported functions, they provide some generic
- * infrastructure for managing object devices
- */
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/lp.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/fs.h>
-#include <linux/poll.h>
-#include <linux/list.h>
-#include <linux/highmem.h>
-#include <linux/io.h>
-#include <asm/ioctls.h>
-#include <linux/uaccess.h>
-#include <linux/miscdevice.h>
-#include <linux/seq_file.h>
-#include <linux/kobject.h>
-
-#include <uapi/linux/lnet/lnetctl.h>
-#include <obd_support.h>
-#include <obd_class.h>
-#include <lprocfs_status.h>
-#include <uapi/linux/lustre/lustre_ioctl.h>
-#include <uapi/linux/lustre/lustre_ver.h>
-
-#define OBD_MAX_IOCTL_BUFFER	8192
-
-static int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
-{
-	if (data->ioc_len > BIT(30)) {
-		CERROR("OBD ioctl: ioc_len larger than 1<<30\n");
-		return 1;
-	}
-
-	if (data->ioc_inllen1 > BIT(30)) {
-		CERROR("OBD ioctl: ioc_inllen1 larger than 1<<30\n");
-		return 1;
-	}
-
-	if (data->ioc_inllen2 > BIT(30)) {
-		CERROR("OBD ioctl: ioc_inllen2 larger than 1<<30\n");
-		return 1;
-	}
-
-	if (data->ioc_inllen3 > BIT(30)) {
-		CERROR("OBD ioctl: ioc_inllen3 larger than 1<<30\n");
-		return 1;
-	}
-
-	if (data->ioc_inllen4 > BIT(30)) {
-		CERROR("OBD ioctl: ioc_inllen4 larger than 1<<30\n");
-		return 1;
-	}
-
-	if (data->ioc_inlbuf1 && data->ioc_inllen1 == 0) {
-		CERROR("OBD ioctl: inlbuf1 pointer but 0 length\n");
-		return 1;
-	}
-
-	if (data->ioc_inlbuf2 && data->ioc_inllen2 == 0) {
-		CERROR("OBD ioctl: inlbuf2 pointer but 0 length\n");
-		return 1;
-	}
-
-	if (data->ioc_inlbuf3 && data->ioc_inllen3 == 0) {
-		CERROR("OBD ioctl: inlbuf3 pointer but 0 length\n");
-		return 1;
-	}
-
-	if (data->ioc_inlbuf4 && data->ioc_inllen4 == 0) {
-		CERROR("OBD ioctl: inlbuf4 pointer but 0 length\n");
-		return 1;
-	}
-
-	if (data->ioc_pbuf1 && data->ioc_plen1 == 0) {
-		CERROR("OBD ioctl: pbuf1 pointer but 0 length\n");
-		return 1;
-	}
-
-	if (data->ioc_pbuf2 && data->ioc_plen2 == 0) {
-		CERROR("OBD ioctl: pbuf2 pointer but 0 length\n");
-		return 1;
-	}
-
-	if (!data->ioc_pbuf1 && data->ioc_plen1 != 0) {
-		CERROR("OBD ioctl: plen1 set but NULL pointer\n");
-		return 1;
-	}
-
-	if (!data->ioc_pbuf2 && data->ioc_plen2 != 0) {
-		CERROR("OBD ioctl: plen2 set but NULL pointer\n");
-		return 1;
-	}
-
-	if (obd_ioctl_packlen(data) > data->ioc_len) {
-		CERROR("OBD ioctl: packlen exceeds ioc_len (%d > %d)\n",
-		obd_ioctl_packlen(data), data->ioc_len);
-		return 1;
-	}
-
-	return 0;
-}
-
-/* buffer MUST be at least the size of obd_ioctl_hdr */
-int obd_ioctl_getdata(char **buf, int *len, void __user *arg)
-{
-	struct obd_ioctl_hdr hdr;
-	struct obd_ioctl_data *data;
-	int err;
-	int offset = 0;
-
-	if (copy_from_user(&hdr, arg, sizeof(hdr)))
-		return -EFAULT;
-
-	if (hdr.ioc_version != OBD_IOCTL_VERSION) {
-		CERROR("Version mismatch kernel (%x) vs application (%x)\n",
-		       OBD_IOCTL_VERSION, hdr.ioc_version);
-		return -EINVAL;
-	}
-
-	if (hdr.ioc_len > OBD_MAX_IOCTL_BUFFER) {
-		CERROR("User buffer len %d exceeds %d max buffer\n",
-		       hdr.ioc_len, OBD_MAX_IOCTL_BUFFER);
-		return -EINVAL;
-	}
-
-	if (hdr.ioc_len < sizeof(struct obd_ioctl_data)) {
-		CERROR("User buffer too small for ioctl (%d)\n", hdr.ioc_len);
-		return -EINVAL;
-	}
-
-	/* When there are lots of processes calling vmalloc on multi-core
-	 * system, the high lock contention will hurt performance badly,
-	 * obdfilter-survey is an example, which relies on ioctl. So we'd
-	 * better avoid vmalloc on ioctl path. LU-66
-	 */
-	*buf = kvzalloc(hdr.ioc_len, GFP_KERNEL);
-	if (!*buf) {
-		CERROR("Cannot allocate control buffer of len %d\n",
-		       hdr.ioc_len);
-		return -EINVAL;
-	}
-	*len = hdr.ioc_len;
-	data = (struct obd_ioctl_data *)*buf;
-
-	if (copy_from_user(*buf, arg, hdr.ioc_len)) {
-		err = -EFAULT;
-		goto free_buf;
-	}
-	if (hdr.ioc_len != data->ioc_len) {
-		err = -EINVAL;
-		goto free_buf;
-	}
-
-	if (obd_ioctl_is_invalid(data)) {
-		CERROR("ioctl not correctly formatted\n");
-		err = -EINVAL;
-		goto free_buf;
-	}
-
-	if (data->ioc_inllen1) {
-		data->ioc_inlbuf1 = &data->ioc_bulk[0];
-		offset += cfs_size_round(data->ioc_inllen1);
-	}
-
-	if (data->ioc_inllen2) {
-		data->ioc_inlbuf2 = &data->ioc_bulk[0] + offset;
-		offset += cfs_size_round(data->ioc_inllen2);
-	}
-
-	if (data->ioc_inllen3) {
-		data->ioc_inlbuf3 = &data->ioc_bulk[0] + offset;
-		offset += cfs_size_round(data->ioc_inllen3);
-	}
-
-	if (data->ioc_inllen4)
-		data->ioc_inlbuf4 = &data->ioc_bulk[0] + offset;
-
-	return 0;
-
-free_buf:
-	kvfree(*buf);
-	return err;
-}
-EXPORT_SYMBOL(obd_ioctl_getdata);
-
-/*  opening /dev/obd */
-static int obd_class_open(struct inode *inode, struct file *file)
-{
-	try_module_get(THIS_MODULE);
-	return 0;
-}
-
-/*  closing /dev/obd */
-static int obd_class_release(struct inode *inode, struct file *file)
-{
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-/* to control /dev/obd */
-static long obd_class_ioctl(struct file *filp, unsigned int cmd,
-			    unsigned long arg)
-{
-	int err = 0;
-
-	/* Allow non-root access for OBD_IOC_PING_TARGET - used by lfs check */
-	if (!capable(CAP_SYS_ADMIN) && (cmd != OBD_IOC_PING_TARGET))
-		return err = -EACCES;
-	if ((cmd & 0xffffff00) == ((int)'T') << 8) /* ignore all tty ioctls */
-		return err = -ENOTTY;
-
-	err = class_handle_ioctl(cmd, (unsigned long)arg);
-
-	return err;
-}
-
-/* declare character device */
-static const struct file_operations obd_psdev_fops = {
-	.owner	  = THIS_MODULE,
-	.unlocked_ioctl = obd_class_ioctl, /* unlocked_ioctl */
-	.open	   = obd_class_open,      /* open */
-	.release	= obd_class_release,   /* release */
-};
-
-/* modules setup */
-struct miscdevice obd_psdev = {
-	.minor = MISC_DYNAMIC_MINOR,
-	.name  = OBD_DEV_NAME,
-	.fops  = &obd_psdev_fops,
-};
-
-static ssize_t version_show(struct kobject *kobj, struct attribute *attr,
-			    char *buf)
-{
-	return sprintf(buf, "%s\n", LUSTRE_VERSION_STRING);
-}
-
-static ssize_t pinger_show(struct kobject *kobj, struct attribute *attr,
-			   char *buf)
-{
-	return sprintf(buf, "%s\n", "on");
-}
-
-static ssize_t
-health_check_show(struct kobject *kobj, struct attribute *attr, char *buf)
-{
-	bool healthy = true;
-	int i;
-	size_t len = 0;
-
-	if (libcfs_catastrophe)
-		return sprintf(buf, "LBUG\n");
-
-	read_lock(&obd_dev_lock);
-	for (i = 0; i < class_devno_max(); i++) {
-		struct obd_device *obd;
-
-		obd = class_num2obd(i);
-		if (!obd || !obd->obd_attached || !obd->obd_set_up)
-			continue;
-
-		LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-		if (obd->obd_stopping)
-			continue;
-
-		class_incref(obd, __func__, current);
-		read_unlock(&obd_dev_lock);
-
-		if (obd_health_check(NULL, obd))
-			healthy = false;
-		class_decref(obd, __func__, current);
-		read_lock(&obd_dev_lock);
-	}
-	read_unlock(&obd_dev_lock);
-
-	if (healthy)
-		len = sprintf(buf, "healthy\n");
-	else
-		len = sprintf(buf, "NOT HEALTHY\n");
-
-	return len;
-}
-
-static ssize_t jobid_var_show(struct kobject *kobj, struct attribute *attr,
-			      char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_var);
-}
-
-static ssize_t jobid_var_store(struct kobject *kobj, struct attribute *attr,
-			       const char *buffer,
-			       size_t count)
-{
-	if (!count || count > JOBSTATS_JOBID_VAR_MAX_LEN)
-		return -EINVAL;
-
-	memset(obd_jobid_var, 0, JOBSTATS_JOBID_VAR_MAX_LEN + 1);
-
-	memcpy(obd_jobid_var, buffer, count);
-
-	/* Trim the trailing '\n' if any */
-	if (obd_jobid_var[count - 1] == '\n')
-		obd_jobid_var[count - 1] = 0;
-
-	return count;
-}
-
-static ssize_t jobid_name_show(struct kobject *kobj, struct attribute *attr,
-			       char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_node);
-}
-
-static ssize_t jobid_name_store(struct kobject *kobj, struct attribute *attr,
-				const char *buffer,
-				size_t count)
-{
-	if (!count || count > LUSTRE_JOBID_SIZE)
-		return -EINVAL;
-
-	memcpy(obd_jobid_node, buffer, count);
-
-	obd_jobid_node[count] = 0;
-
-	/* Trim the trailing '\n' if any */
-	if (obd_jobid_node[count - 1] == '\n')
-		obd_jobid_node[count - 1] = 0;
-
-	return count;
-}
-
-/* Root for /sys/kernel/debug/lustre */
-struct dentry *debugfs_lustre_root;
-EXPORT_SYMBOL_GPL(debugfs_lustre_root);
-
-LUSTRE_RO_ATTR(version);
-LUSTRE_RO_ATTR(pinger);
-LUSTRE_RO_ATTR(health_check);
-LUSTRE_RW_ATTR(jobid_var);
-LUSTRE_RW_ATTR(jobid_name);
-
-static struct attribute *lustre_attrs[] = {
-	&lustre_attr_version.attr,
-	&lustre_attr_pinger.attr,
-	&lustre_attr_health_check.attr,
-	&lustre_attr_jobid_name.attr,
-	&lustre_attr_jobid_var.attr,
-	NULL,
-};
-
-static void *obd_device_list_seq_start(struct seq_file *p, loff_t *pos)
-{
-	if (*pos >= class_devno_max())
-		return NULL;
-
-	return pos;
-}
-
-static void obd_device_list_seq_stop(struct seq_file *p, void *v)
-{
-}
-
-static void *obd_device_list_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
-	++*pos;
-	if (*pos >= class_devno_max())
-		return NULL;
-
-	return pos;
-}
-
-static int obd_device_list_seq_show(struct seq_file *p, void *v)
-{
-	loff_t index = *(loff_t *)v;
-	struct obd_device *obd = class_num2obd((int)index);
-	char *status;
-
-	if (!obd)
-		return 0;
-
-	LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
-	if (obd->obd_stopping)
-		status = "ST";
-	else if (obd->obd_inactive)
-		status = "IN";
-	else if (obd->obd_set_up)
-		status = "UP";
-	else if (obd->obd_attached)
-		status = "AT";
-	else
-		status = "--";
-
-	seq_printf(p, "%3d %s %s %s %s %d\n",
-		   (int)index, status, obd->obd_type->typ_name,
-		   obd->obd_name, obd->obd_uuid.uuid,
-		   atomic_read(&obd->obd_refcount));
-	return 0;
-}
-
-static const struct seq_operations obd_device_list_sops = {
-	.start = obd_device_list_seq_start,
-	.stop = obd_device_list_seq_stop,
-	.next = obd_device_list_seq_next,
-	.show = obd_device_list_seq_show,
-};
-
-static int obd_device_list_open(struct inode *inode, struct file *file)
-{
-	struct seq_file *seq;
-	int rc = seq_open(file, &obd_device_list_sops);
-
-	if (rc)
-		return rc;
-
-	seq = file->private_data;
-	seq->private = inode->i_private;
-
-	return 0;
-}
-
-static const struct file_operations obd_device_list_fops = {
-	.owner   = THIS_MODULE,
-	.open    = obd_device_list_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
-
-struct kobject *lustre_kobj;
-EXPORT_SYMBOL_GPL(lustre_kobj);
-
-static const struct attribute_group lustre_attr_group = {
-	.attrs = lustre_attrs,
-};
-
-int class_procfs_init(void)
-{
-	int rc = -ENOMEM;
-
-	lustre_kobj = kobject_create_and_add("lustre", fs_kobj);
-	if (!lustre_kobj)
-		goto out;
-
-	/* Create the files associated with this kobject */
-	rc = sysfs_create_group(lustre_kobj, &lustre_attr_group);
-	if (rc) {
-		kobject_put(lustre_kobj);
-		goto out;
-	}
-
-	debugfs_lustre_root = debugfs_create_dir("lustre", NULL);
-
-	debugfs_create_file("devices", 0444, debugfs_lustre_root, NULL,
-			    &obd_device_list_fops);
-out:
-	return rc;
-}
-
-int class_procfs_clean(void)
-{
-	debugfs_remove_recursive(debugfs_lustre_root);
-
-	debugfs_lustre_root = NULL;
-
-	sysfs_remove_group(lustre_kobj, &lustre_attr_group);
-	kobject_put(lustre_kobj);
-
-	return 0;
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
deleted file mode 100644
index e5e8687784ee..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
+++ /dev/null
@@ -1,162 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * 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 version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2011, 2015, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <linux/module.h>
-#include <linux/sysctl.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/ctype.h>
-#include <linux/bitops.h>
-#include <linux/uaccess.h>
-#include <linux/utsname.h>
-
-#define DEBUG_SUBSYSTEM S_CLASS
-
-#include <obd_support.h>
-#include <lprocfs_status.h>
-#include <obd_class.h>
-
-struct static_lustre_uintvalue_attr {
-	struct {
-		struct attribute attr;
-		ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
-				char *buf);
-		ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
-				 const char *buf, size_t len);
-	} u;
-	int *value;
-};
-
-static ssize_t static_uintvalue_show(struct kobject *kobj,
-				     struct attribute *attr,
-				     char *buf)
-{
-	struct static_lustre_uintvalue_attr *lattr = (void *)attr;
-
-	return sprintf(buf, "%d\n", *lattr->value);
-}
-
-static ssize_t static_uintvalue_store(struct kobject *kobj,
-				      struct attribute *attr,
-				      const char *buffer, size_t count)
-{
-	struct static_lustre_uintvalue_attr *lattr  = (void *)attr;
-	int rc;
-	unsigned int val;
-
-	rc = kstrtouint(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	*lattr->value = val;
-
-	return count;
-}
-
-#define LUSTRE_STATIC_UINT_ATTR(name, value) \
-static struct static_lustre_uintvalue_attr lustre_sattr_##name =	\
-					{__ATTR(name, 0644,		\
-						static_uintvalue_show,	\
-						static_uintvalue_store),\
-					  value }
-
-LUSTRE_STATIC_UINT_ATTR(timeout, &obd_timeout);
-
-static ssize_t max_dirty_mb_show(struct kobject *kobj, struct attribute *attr,
-				 char *buf)
-{
-	return sprintf(buf, "%lu\n",
-		       obd_max_dirty_pages / (1 << (20 - PAGE_SHIFT)));
-}
-
-static ssize_t max_dirty_mb_store(struct kobject *kobj, struct attribute *attr,
-				  const char *buffer, size_t count)
-{
-	int rc;
-	unsigned long val;
-
-	rc = kstrtoul(buffer, 10, &val);
-	if (rc)
-		return rc;
-
-	val *= 1 << (20 - PAGE_SHIFT); /* convert to pages */
-
-	if (val > ((totalram_pages / 10) * 9)) {
-		/* Somebody wants to assign too much memory to dirty pages */
-		return -EINVAL;
-	}
-
-	if (val < 4 << (20 - PAGE_SHIFT)) {
-		/* Less than 4 Mb for dirty cache is also bad */
-		return -EINVAL;
-	}
-
-	obd_max_dirty_pages = val;
-
-	return count;
-}
-LUSTRE_RW_ATTR(max_dirty_mb);
-
-LUSTRE_STATIC_UINT_ATTR(debug_peer_on_timeout, &obd_debug_peer_on_timeout);
-LUSTRE_STATIC_UINT_ATTR(dump_on_timeout, &obd_dump_on_timeout);
-LUSTRE_STATIC_UINT_ATTR(dump_on_eviction, &obd_dump_on_eviction);
-LUSTRE_STATIC_UINT_ATTR(at_min, &at_min);
-LUSTRE_STATIC_UINT_ATTR(at_max, &at_max);
-LUSTRE_STATIC_UINT_ATTR(at_extra, &at_extra);
-LUSTRE_STATIC_UINT_ATTR(at_early_margin, &at_early_margin);
-LUSTRE_STATIC_UINT_ATTR(at_history, &at_history);
-
-static struct attribute *lustre_attrs[] = {
-	&lustre_sattr_timeout.u.attr,
-	&lustre_attr_max_dirty_mb.attr,
-	&lustre_sattr_debug_peer_on_timeout.u.attr,
-	&lustre_sattr_dump_on_timeout.u.attr,
-	&lustre_sattr_dump_on_eviction.u.attr,
-	&lustre_sattr_at_min.u.attr,
-	&lustre_sattr_at_max.u.attr,
-	&lustre_sattr_at_extra.u.attr,
-	&lustre_sattr_at_early_margin.u.attr,
-	&lustre_sattr_at_history.u.attr,
-	NULL,
-};
-
-static const struct attribute_group lustre_attr_group = {
-	.attrs = lustre_attrs,
-};
-
-int obd_sysctl_init(void)
-{
-	return sysfs_create_group(lustre_kobj, &lustre_attr_group);
-}
diff --git a/drivers/staging/lustre/lustre/obdclass/module.c b/drivers/staging/lustre/lustre/obdclass/module.c
new file mode 100644
index 000000000000..9c800580053b
--- /dev/null
+++ b/drivers/staging/lustre/lustre/obdclass/module.c
@@ -0,0 +1,514 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/obdclass/linux/linux-module.c
+ *
+ * Object Devices Class Driver
+ * These are the only exported functions, they provide some generic
+ * infrastructure for managing object devices
+ */
+
+#define DEBUG_SUBSYSTEM S_CLASS
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/lp.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/fcntl.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/fs.h>
+#include <linux/poll.h>
+#include <linux/list.h>
+#include <linux/highmem.h>
+#include <linux/io.h>
+#include <asm/ioctls.h>
+#include <linux/uaccess.h>
+#include <linux/miscdevice.h>
+#include <linux/seq_file.h>
+#include <linux/kobject.h>
+
+#include <uapi/linux/lnet/lnetctl.h>
+#include <obd_support.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
+#include <uapi/linux/lustre/lustre_ioctl.h>
+#include <uapi/linux/lustre/lustre_ver.h>
+
+#define OBD_MAX_IOCTL_BUFFER	8192
+
+static int obd_ioctl_is_invalid(struct obd_ioctl_data *data)
+{
+	if (data->ioc_len > BIT(30)) {
+		CERROR("OBD ioctl: ioc_len larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen1 > BIT(30)) {
+		CERROR("OBD ioctl: ioc_inllen1 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen2 > BIT(30)) {
+		CERROR("OBD ioctl: ioc_inllen2 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen3 > BIT(30)) {
+		CERROR("OBD ioctl: ioc_inllen3 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inllen4 > BIT(30)) {
+		CERROR("OBD ioctl: ioc_inllen4 larger than 1<<30\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf1 && data->ioc_inllen1 == 0) {
+		CERROR("OBD ioctl: inlbuf1 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf2 && data->ioc_inllen2 == 0) {
+		CERROR("OBD ioctl: inlbuf2 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf3 && data->ioc_inllen3 == 0) {
+		CERROR("OBD ioctl: inlbuf3 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_inlbuf4 && data->ioc_inllen4 == 0) {
+		CERROR("OBD ioctl: inlbuf4 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_pbuf1 && data->ioc_plen1 == 0) {
+		CERROR("OBD ioctl: pbuf1 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (data->ioc_pbuf2 && data->ioc_plen2 == 0) {
+		CERROR("OBD ioctl: pbuf2 pointer but 0 length\n");
+		return 1;
+	}
+
+	if (!data->ioc_pbuf1 && data->ioc_plen1 != 0) {
+		CERROR("OBD ioctl: plen1 set but NULL pointer\n");
+		return 1;
+	}
+
+	if (!data->ioc_pbuf2 && data->ioc_plen2 != 0) {
+		CERROR("OBD ioctl: plen2 set but NULL pointer\n");
+		return 1;
+	}
+
+	if (obd_ioctl_packlen(data) > data->ioc_len) {
+		CERROR("OBD ioctl: packlen exceeds ioc_len (%d > %d)\n",
+		obd_ioctl_packlen(data), data->ioc_len);
+		return 1;
+	}
+
+	return 0;
+}
+
+/* buffer MUST be at least the size of obd_ioctl_hdr */
+int obd_ioctl_getdata(char **buf, int *len, void __user *arg)
+{
+	struct obd_ioctl_hdr hdr;
+	struct obd_ioctl_data *data;
+	int err;
+	int offset = 0;
+
+	if (copy_from_user(&hdr, arg, sizeof(hdr)))
+		return -EFAULT;
+
+	if (hdr.ioc_version != OBD_IOCTL_VERSION) {
+		CERROR("Version mismatch kernel (%x) vs application (%x)\n",
+		       OBD_IOCTL_VERSION, hdr.ioc_version);
+		return -EINVAL;
+	}
+
+	if (hdr.ioc_len > OBD_MAX_IOCTL_BUFFER) {
+		CERROR("User buffer len %d exceeds %d max buffer\n",
+		       hdr.ioc_len, OBD_MAX_IOCTL_BUFFER);
+		return -EINVAL;
+	}
+
+	if (hdr.ioc_len < sizeof(struct obd_ioctl_data)) {
+		CERROR("User buffer too small for ioctl (%d)\n", hdr.ioc_len);
+		return -EINVAL;
+	}
+
+	/* When there are lots of processes calling vmalloc on multi-core
+	 * system, the high lock contention will hurt performance badly,
+	 * obdfilter-survey is an example, which relies on ioctl. So we'd
+	 * better avoid vmalloc on ioctl path. LU-66
+	 */
+	*buf = kvzalloc(hdr.ioc_len, GFP_KERNEL);
+	if (!*buf) {
+		CERROR("Cannot allocate control buffer of len %d\n",
+		       hdr.ioc_len);
+		return -EINVAL;
+	}
+	*len = hdr.ioc_len;
+	data = (struct obd_ioctl_data *)*buf;
+
+	if (copy_from_user(*buf, arg, hdr.ioc_len)) {
+		err = -EFAULT;
+		goto free_buf;
+	}
+	if (hdr.ioc_len != data->ioc_len) {
+		err = -EINVAL;
+		goto free_buf;
+	}
+
+	if (obd_ioctl_is_invalid(data)) {
+		CERROR("ioctl not correctly formatted\n");
+		err = -EINVAL;
+		goto free_buf;
+	}
+
+	if (data->ioc_inllen1) {
+		data->ioc_inlbuf1 = &data->ioc_bulk[0];
+		offset += cfs_size_round(data->ioc_inllen1);
+	}
+
+	if (data->ioc_inllen2) {
+		data->ioc_inlbuf2 = &data->ioc_bulk[0] + offset;
+		offset += cfs_size_round(data->ioc_inllen2);
+	}
+
+	if (data->ioc_inllen3) {
+		data->ioc_inlbuf3 = &data->ioc_bulk[0] + offset;
+		offset += cfs_size_round(data->ioc_inllen3);
+	}
+
+	if (data->ioc_inllen4)
+		data->ioc_inlbuf4 = &data->ioc_bulk[0] + offset;
+
+	return 0;
+
+free_buf:
+	kvfree(*buf);
+	return err;
+}
+EXPORT_SYMBOL(obd_ioctl_getdata);
+
+/*  opening /dev/obd */
+static int obd_class_open(struct inode *inode, struct file *file)
+{
+	try_module_get(THIS_MODULE);
+	return 0;
+}
+
+/*  closing /dev/obd */
+static int obd_class_release(struct inode *inode, struct file *file)
+{
+	module_put(THIS_MODULE);
+	return 0;
+}
+
+/* to control /dev/obd */
+static long obd_class_ioctl(struct file *filp, unsigned int cmd,
+			    unsigned long arg)
+{
+	int err = 0;
+
+	/* Allow non-root access for OBD_IOC_PING_TARGET - used by lfs check */
+	if (!capable(CAP_SYS_ADMIN) && (cmd != OBD_IOC_PING_TARGET))
+		return err = -EACCES;
+	if ((cmd & 0xffffff00) == ((int)'T') << 8) /* ignore all tty ioctls */
+		return err = -ENOTTY;
+
+	err = class_handle_ioctl(cmd, (unsigned long)arg);
+
+	return err;
+}
+
+/* declare character device */
+static const struct file_operations obd_psdev_fops = {
+	.owner	  = THIS_MODULE,
+	.unlocked_ioctl = obd_class_ioctl, /* unlocked_ioctl */
+	.open	   = obd_class_open,      /* open */
+	.release	= obd_class_release,   /* release */
+};
+
+/* modules setup */
+struct miscdevice obd_psdev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name  = OBD_DEV_NAME,
+	.fops  = &obd_psdev_fops,
+};
+
+static ssize_t version_show(struct kobject *kobj, struct attribute *attr,
+			    char *buf)
+{
+	return sprintf(buf, "%s\n", LUSTRE_VERSION_STRING);
+}
+
+static ssize_t pinger_show(struct kobject *kobj, struct attribute *attr,
+			   char *buf)
+{
+	return sprintf(buf, "%s\n", "on");
+}
+
+static ssize_t
+health_check_show(struct kobject *kobj, struct attribute *attr, char *buf)
+{
+	bool healthy = true;
+	int i;
+	size_t len = 0;
+
+	if (libcfs_catastrophe)
+		return sprintf(buf, "LBUG\n");
+
+	read_lock(&obd_dev_lock);
+	for (i = 0; i < class_devno_max(); i++) {
+		struct obd_device *obd;
+
+		obd = class_num2obd(i);
+		if (!obd || !obd->obd_attached || !obd->obd_set_up)
+			continue;
+
+		LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+		if (obd->obd_stopping)
+			continue;
+
+		class_incref(obd, __func__, current);
+		read_unlock(&obd_dev_lock);
+
+		if (obd_health_check(NULL, obd))
+			healthy = false;
+		class_decref(obd, __func__, current);
+		read_lock(&obd_dev_lock);
+	}
+	read_unlock(&obd_dev_lock);
+
+	if (healthy)
+		len = sprintf(buf, "healthy\n");
+	else
+		len = sprintf(buf, "NOT HEALTHY\n");
+
+	return len;
+}
+
+static ssize_t jobid_var_show(struct kobject *kobj, struct attribute *attr,
+			      char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_var);
+}
+
+static ssize_t jobid_var_store(struct kobject *kobj, struct attribute *attr,
+			       const char *buffer,
+			       size_t count)
+{
+	if (!count || count > JOBSTATS_JOBID_VAR_MAX_LEN)
+		return -EINVAL;
+
+	memset(obd_jobid_var, 0, JOBSTATS_JOBID_VAR_MAX_LEN + 1);
+
+	memcpy(obd_jobid_var, buffer, count);
+
+	/* Trim the trailing '\n' if any */
+	if (obd_jobid_var[count - 1] == '\n')
+		obd_jobid_var[count - 1] = 0;
+
+	return count;
+}
+
+static ssize_t jobid_name_show(struct kobject *kobj, struct attribute *attr,
+			       char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_node);
+}
+
+static ssize_t jobid_name_store(struct kobject *kobj, struct attribute *attr,
+				const char *buffer,
+				size_t count)
+{
+	if (!count || count > LUSTRE_JOBID_SIZE)
+		return -EINVAL;
+
+	memcpy(obd_jobid_node, buffer, count);
+
+	obd_jobid_node[count] = 0;
+
+	/* Trim the trailing '\n' if any */
+	if (obd_jobid_node[count - 1] == '\n')
+		obd_jobid_node[count - 1] = 0;
+
+	return count;
+}
+
+/* Root for /sys/kernel/debug/lustre */
+struct dentry *debugfs_lustre_root;
+EXPORT_SYMBOL_GPL(debugfs_lustre_root);
+
+LUSTRE_RO_ATTR(version);
+LUSTRE_RO_ATTR(pinger);
+LUSTRE_RO_ATTR(health_check);
+LUSTRE_RW_ATTR(jobid_var);
+LUSTRE_RW_ATTR(jobid_name);
+
+static struct attribute *lustre_attrs[] = {
+	&lustre_attr_version.attr,
+	&lustre_attr_pinger.attr,
+	&lustre_attr_health_check.attr,
+	&lustre_attr_jobid_name.attr,
+	&lustre_attr_jobid_var.attr,
+	NULL,
+};
+
+static void *obd_device_list_seq_start(struct seq_file *p, loff_t *pos)
+{
+	if (*pos >= class_devno_max())
+		return NULL;
+
+	return pos;
+}
+
+static void obd_device_list_seq_stop(struct seq_file *p, void *v)
+{
+}
+
+static void *obd_device_list_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+	++*pos;
+	if (*pos >= class_devno_max())
+		return NULL;
+
+	return pos;
+}
+
+static int obd_device_list_seq_show(struct seq_file *p, void *v)
+{
+	loff_t index = *(loff_t *)v;
+	struct obd_device *obd = class_num2obd((int)index);
+	char *status;
+
+	if (!obd)
+		return 0;
+
+	LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+	if (obd->obd_stopping)
+		status = "ST";
+	else if (obd->obd_inactive)
+		status = "IN";
+	else if (obd->obd_set_up)
+		status = "UP";
+	else if (obd->obd_attached)
+		status = "AT";
+	else
+		status = "--";
+
+	seq_printf(p, "%3d %s %s %s %s %d\n",
+		   (int)index, status, obd->obd_type->typ_name,
+		   obd->obd_name, obd->obd_uuid.uuid,
+		   atomic_read(&obd->obd_refcount));
+	return 0;
+}
+
+static const struct seq_operations obd_device_list_sops = {
+	.start = obd_device_list_seq_start,
+	.stop = obd_device_list_seq_stop,
+	.next = obd_device_list_seq_next,
+	.show = obd_device_list_seq_show,
+};
+
+static int obd_device_list_open(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq;
+	int rc = seq_open(file, &obd_device_list_sops);
+
+	if (rc)
+		return rc;
+
+	seq = file->private_data;
+	seq->private = inode->i_private;
+
+	return 0;
+}
+
+static const struct file_operations obd_device_list_fops = {
+	.owner   = THIS_MODULE,
+	.open    = obd_device_list_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = seq_release,
+};
+
+struct kobject *lustre_kobj;
+EXPORT_SYMBOL_GPL(lustre_kobj);
+
+static const struct attribute_group lustre_attr_group = {
+	.attrs = lustre_attrs,
+};
+
+int class_procfs_init(void)
+{
+	int rc = -ENOMEM;
+
+	lustre_kobj = kobject_create_and_add("lustre", fs_kobj);
+	if (!lustre_kobj)
+		goto out;
+
+	/* Create the files associated with this kobject */
+	rc = sysfs_create_group(lustre_kobj, &lustre_attr_group);
+	if (rc) {
+		kobject_put(lustre_kobj);
+		goto out;
+	}
+
+	debugfs_lustre_root = debugfs_create_dir("lustre", NULL);
+
+	debugfs_create_file("devices", 0444, debugfs_lustre_root, NULL,
+			    &obd_device_list_fops);
+out:
+	return rc;
+}
+
+int class_procfs_clean(void)
+{
+	debugfs_remove_recursive(debugfs_lustre_root);
+
+	debugfs_lustre_root = NULL;
+
+	sysfs_remove_group(lustre_kobj, &lustre_attr_group);
+	kobject_put(lustre_kobj);
+
+	return 0;
+}
diff --git a/drivers/staging/lustre/lustre/obdclass/sysctl.c b/drivers/staging/lustre/lustre/obdclass/sysctl.c
new file mode 100644
index 000000000000..e5e8687784ee
--- /dev/null
+++ b/drivers/staging/lustre/lustre/obdclass/sysctl.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2015, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/sysctl.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/ctype.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
+#include <linux/utsname.h>
+
+#define DEBUG_SUBSYSTEM S_CLASS
+
+#include <obd_support.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
+
+struct static_lustre_uintvalue_attr {
+	struct {
+		struct attribute attr;
+		ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
+				char *buf);
+		ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
+				 const char *buf, size_t len);
+	} u;
+	int *value;
+};
+
+static ssize_t static_uintvalue_show(struct kobject *kobj,
+				     struct attribute *attr,
+				     char *buf)
+{
+	struct static_lustre_uintvalue_attr *lattr = (void *)attr;
+
+	return sprintf(buf, "%d\n", *lattr->value);
+}
+
+static ssize_t static_uintvalue_store(struct kobject *kobj,
+				      struct attribute *attr,
+				      const char *buffer, size_t count)
+{
+	struct static_lustre_uintvalue_attr *lattr  = (void *)attr;
+	int rc;
+	unsigned int val;
+
+	rc = kstrtouint(buffer, 10, &val);
+	if (rc)
+		return rc;
+
+	*lattr->value = val;
+
+	return count;
+}
+
+#define LUSTRE_STATIC_UINT_ATTR(name, value) \
+static struct static_lustre_uintvalue_attr lustre_sattr_##name =	\
+					{__ATTR(name, 0644,		\
+						static_uintvalue_show,	\
+						static_uintvalue_store),\
+					  value }
+
+LUSTRE_STATIC_UINT_ATTR(timeout, &obd_timeout);
+
+static ssize_t max_dirty_mb_show(struct kobject *kobj, struct attribute *attr,
+				 char *buf)
+{
+	return sprintf(buf, "%lu\n",
+		       obd_max_dirty_pages / (1 << (20 - PAGE_SHIFT)));
+}
+
+static ssize_t max_dirty_mb_store(struct kobject *kobj, struct attribute *attr,
+				  const char *buffer, size_t count)
+{
+	int rc;
+	unsigned long val;
+
+	rc = kstrtoul(buffer, 10, &val);
+	if (rc)
+		return rc;
+
+	val *= 1 << (20 - PAGE_SHIFT); /* convert to pages */
+
+	if (val > ((totalram_pages / 10) * 9)) {
+		/* Somebody wants to assign too much memory to dirty pages */
+		return -EINVAL;
+	}
+
+	if (val < 4 << (20 - PAGE_SHIFT)) {
+		/* Less than 4 Mb for dirty cache is also bad */
+		return -EINVAL;
+	}
+
+	obd_max_dirty_pages = val;
+
+	return count;
+}
+LUSTRE_RW_ATTR(max_dirty_mb);
+
+LUSTRE_STATIC_UINT_ATTR(debug_peer_on_timeout, &obd_debug_peer_on_timeout);
+LUSTRE_STATIC_UINT_ATTR(dump_on_timeout, &obd_dump_on_timeout);
+LUSTRE_STATIC_UINT_ATTR(dump_on_eviction, &obd_dump_on_eviction);
+LUSTRE_STATIC_UINT_ATTR(at_min, &at_min);
+LUSTRE_STATIC_UINT_ATTR(at_max, &at_max);
+LUSTRE_STATIC_UINT_ATTR(at_extra, &at_extra);
+LUSTRE_STATIC_UINT_ATTR(at_early_margin, &at_early_margin);
+LUSTRE_STATIC_UINT_ATTR(at_history, &at_history);
+
+static struct attribute *lustre_attrs[] = {
+	&lustre_sattr_timeout.u.attr,
+	&lustre_attr_max_dirty_mb.attr,
+	&lustre_sattr_debug_peer_on_timeout.u.attr,
+	&lustre_sattr_dump_on_timeout.u.attr,
+	&lustre_sattr_dump_on_eviction.u.attr,
+	&lustre_sattr_at_min.u.attr,
+	&lustre_sattr_at_max.u.attr,
+	&lustre_sattr_at_extra.u.attr,
+	&lustre_sattr_at_early_margin.u.attr,
+	&lustre_sattr_at_history.u.attr,
+	NULL,
+};
+
+static const struct attribute_group lustre_attr_group = {
+	.attrs = lustre_attrs,
+};
+
+int obd_sysctl_init(void)
+{
+	return sysfs_create_group(lustre_kobj, &lustre_attr_group);
+}