/*
* NVM Express device driver
* Copyright (c) 2011-2014, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*/
#include <linux/blkdev.h>
#include <linux/blk-mq.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/hdreg.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/list_sort.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/pr.h>
#include <linux/ptrace.h>
#include <linux/nvme_ioctl.h>
#include <linux/t10-pi.h>
#include <scsi/sg.h>
#include <asm/unaligned.h>
#include "nvme.h"
#define NVME_MINORS (1U << MINORBITS)
static int nvme_major;
module_param(nvme_major, int, 0);
static int nvme_char_major;
module_param(nvme_char_major, int, 0);
static LIST_HEAD(nvme_ctrl_list);
DEFINE_SPINLOCK(dev_list_lock);
static struct class *nvme_class;
static void nvme_free_ns(struct kref *kref)
{
struct nvme_ns *ns = container_of(kref, struct nvme_ns, kref);
if (ns->type == NVME_NS_LIGHTNVM)
nvme_nvm_unregister(ns->queue, ns->disk->disk_name);
spin_lock(&dev_list_lock);
ns->disk->private_data = NULL;
spin_unlock(&dev_list_lock);
nvme_put_ctrl(ns->ctrl);
put_disk(ns