Remove fuse kernel module sources

1 files changed, 0 insertions, 1101 deletions

diff --git a/kernel/inode.c b/kernel/inode.c
deleted file mode 100644
index 0a5900e..0000000
--- a/kernel/inode.c
+++ /dev/null
@@ -1,1101 +0,0 @@
-/*
-  FUSE: Filesystem in Userspace
-  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
-
-  This program can be distributed under the terms of the GNU GPL.
-  See the file COPYING.
-*/
-
-#include "fuse_i.h"
-
-#include <linux/pagemap.h>
-#include <linux/slab.h>
-#include <linux/file.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/parser.h>
-#include <linux/statfs.h>
-#include <linux/random.h>
-#include <linux/sched.h>
-
-MODULE_AUTHOR("Miklos Szeredi <miklos@szeredi.hu>");
-MODULE_DESCRIPTION("Filesystem in Userspace");
-#ifdef MODULE_LICENSE
-MODULE_LICENSE("GPL");
-#endif
-
-static struct kmem_cache *fuse_inode_cachep;
-struct list_head fuse_conn_list;
-DEFINE_MUTEX(fuse_mutex);
-
-#define FUSE_SUPER_MAGIC 0x65735546
-
-#ifndef MAX_LFS_FILESIZE
-#define MAX_LFS_FILESIZE (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
-#endif
-struct fuse_mount_data {
-	int fd;
-	unsigned rootmode;
-	unsigned user_id;
-	unsigned group_id;
-	unsigned fd_present : 1;
-	unsigned rootmode_present : 1;
-	unsigned user_id_present : 1;
-	unsigned group_id_present : 1;
-	unsigned flags;
-	unsigned max_read;
-	unsigned blksize;
-};
-
-static struct inode *fuse_alloc_inode(struct super_block *sb)
-{
-	struct inode *inode;
-	struct fuse_inode *fi;
-
-	inode = kmem_cache_alloc(fuse_inode_cachep, GFP_KERNEL);
-	if (!inode)
-		return NULL;
-
-	fi = get_fuse_inode(inode);
-	fi->i_time = 0;
-	fi->nodeid = 0;
-	fi->nlookup = 0;
-	fi->forget_req = fuse_request_alloc();
-	if (!fi->forget_req) {
-		kmem_cache_free(fuse_inode_cachep, inode);
-		return NULL;
-	}
-
-	return inode;
-}
-
-static void fuse_destroy_inode(struct inode *inode)
-{
-	struct fuse_inode *fi = get_fuse_inode(inode);
-	if (fi->forget_req)
-		fuse_request_free(fi->forget_req);
-#ifndef KERNEL_2_6_18_PLUS
-	if (inode->i_flock) {
-		WARN_ON(inode->i_flock->fl_next);
-		kfree(inode->i_flock);
-		inode->i_flock = NULL;
-	}
-#endif
-	kmem_cache_free(fuse_inode_cachep, inode);
-}
-
-static void fuse_read_inode(struct inode *inode)
-{
-	/* No op */
-}
-
-void fuse_send_forget(struct fuse_conn *fc, struct fuse_req *req,
-		      unsigned long nodeid, u64 nlookup)
-{
-	struct fuse_forget_in *inarg = &req->misc.forget_in;
-	inarg->nlookup = nlookup;
-	req->in.h.opcode = FUSE_FORGET;
-	req->in.h.nodeid = nodeid;
-	req->in.numargs = 1;
-	req->in.args[0].size = sizeof(struct fuse_forget_in);
-	req->in.args[0].value = inarg;
-	request_send_noreply(fc, req);
-}
-
-static void fuse_clear_inode(struct inode *inode)
-{
-	if (inode->i_sb->s_flags & MS_ACTIVE) {
-		struct fuse_conn *fc = get_fuse_conn(inode);
-		struct fuse_inode *fi = get_fuse_inode(inode);
-		fuse_send_forget(fc, fi->forget_req, fi->nodeid, fi->nlookup);
-		fi->forget_req = NULL;
-	}
-}
-
-static int fuse_remount_fs(struct super_block *sb, int *flags, char *data)
-{
-	if (*flags & MS_MANDLOCK)
-		return -EINVAL;
-
-	return 0;
-}
-
-void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr)
-{
-	struct fuse_conn *fc = get_fuse_conn(inode);
-	if (S_ISREG(inode->i_mode) && i_size_read(inode) != attr->size)
-#ifdef KERNEL_2_6_21_PLUS
-		invalidate_mapping_pages(inode->i_mapping, 0, -1);
-#else
-		invalidate_inode_pages(inode->i_mapping);
-#endif
-
-	inode->i_ino     = attr->ino;
-	inode->i_mode    = (inode->i_mode & S_IFMT) + (attr->mode & 07777);
-	inode->i_nlink   = attr->nlink;
-	inode->i_uid     = attr->uid;
-	inode->i_gid     = attr->gid;
-	spin_lock(&fc->lock);
-	i_size_write(inode, attr->size);
-	spin_unlock(&fc->lock);
-#ifdef HAVE_I_BLKSIZE
-	inode->i_blksize = PAGE_CACHE_SIZE;
-#endif
-	inode->i_blocks  = attr->blocks;
-	inode->i_atime.tv_sec   = attr->atime;
-	inode->i_atime.tv_nsec  = attr->atimensec;
-	inode->i_mtime.tv_sec   = attr->mtime;
-	inode->i_mtime.tv_nsec  = attr->mtimensec;
-	inode->i_ctime.tv_sec   = attr->ctime;
-	inode->i_ctime.tv_nsec  = attr->ctimensec;
-}
-
-static void fuse_init_inode(struct inode *inode, struct fuse_attr *attr)
-{
-	inode->i_mode = attr->mode & S_IFMT;
-	inode->i_size = attr->size;
-	if (S_ISREG(inode->i_mode)) {
-		fuse_init_common(inode);
-		fuse_init_file_inode(inode);
-	} else if (S_ISDIR(inode->i_mode))
-		fuse_init_dir(inode);
-	else if (S_ISLNK(inode->i_mode))
-		fuse_init_symlink(inode);
-	else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
-		 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
-		fuse_init_common(inode);
-		init_special_inode(inode, inode->i_mode,
-				   new_decode_dev(attr->rdev));
-	} else
-		BUG();
-}
-
-static int fuse_inode_eq(struct inode *inode, void *_nodeidp)
-{
-	unsigned long nodeid = *(unsigned long *) _nodeidp;
-	if (get_node_id(inode) == nodeid)
-		return 1;
-	else
-		return 0;
-}
-
-static int fuse_inode_set(struct inode *inode, void *_nodeidp)
-{
-	unsigned long nodeid = *(unsigned long *) _nodeidp;
-	get_fuse_inode(inode)->nodeid = nodeid;
-	return 0;
-}
-
-struct inode *fuse_iget(struct super_block *sb, unsigned long nodeid,
-			int generation, struct fuse_attr *attr)
-{
-	struct inode *inode;
-	struct fuse_inode *fi;
-	struct fuse_conn *fc = get_fuse_conn_super(sb);
-
- retry:
-	inode = iget5_locked(sb, nodeid, fuse_inode_eq, fuse_inode_set, &nodeid);
-	if (!inode)
-		return NULL;
-
-	if ((inode->i_state & I_NEW)) {
-		inode->i_flags |= S_NOATIME|S_NOCMTIME;
-		inode->i_generation = generation;
-		inode->i_data.backing_dev_info = &fc->bdi;
-		fuse_init_inode(inode, attr);
-		unlock_new_inode(inode);
-	} else if ((inode->i_mode ^ attr->mode) & S_IFMT) {
-		/* Inode has changed type, any I/O on the old should fail */
-		make_bad_inode(inode);
-		iput(inode);
-		goto retry;
-	}
-
-	fi = get_fuse_inode(inode);
-	spin_lock(&fc->lock);
-	fi->nlookup ++;
-	spin_unlock(&fc->lock);
-	fuse_change_attributes(inode, attr);
-	return inode;
-}
-
-#ifdef UMOUNT_BEGIN_VFSMOUNT
-static void fuse_umount_begin(struct vfsmount *vfsmnt, int flags)
-{
-	if (flags & MNT_FORCE)
-		fuse_abort_conn(get_fuse_conn_super(vfsmnt->mnt_sb));
-}
-#else
-static void fuse_umount_begin(struct super_block *sb)
-{
-	fuse_abort_conn(get_fuse_conn_super(sb));
-}
-#endif
-
-static void fuse_send_destroy(struct fuse_conn *fc)
-{
-	struct fuse_req *req = fc->destroy_req;
-	if (req && fc->conn_init) {
-		fc->destroy_req = NULL;
-		req->in.h.opcode = FUSE_DESTROY;
-		req->force = 1;
-		request_send(fc, req);
-		fuse_put_request(fc, req);
-	}
-}
-
-static void fuse_put_super(struct super_block *sb)
-{
-	struct fuse_conn *fc = get_fuse_conn_super(sb);
-
-	fuse_send_destroy(fc);
-	spin_lock(&fc->lock);
-	fc->connected = 0;
-	fc->blocked = 0;
-	spin_unlock(&fc->lock);
-	/* Flush all readers on this fs */
-	kill_fasync(&fc->fasync, SIGIO, POLL_IN);
-	wake_up_all(&fc->waitq);
-	wake_up_all(&fc->blocked_waitq);
-	wake_up_all(&fc->reserved_req_waitq);
-	mutex_lock(&fuse_mutex);
-	list_del(&fc->entry);
-	fuse_ctl_remove_conn(fc);
-	mutex_unlock(&fuse_mutex);
-	fuse_conn_put(fc);
-}
-
-static void convert_fuse_statfs(struct kstatfs *stbuf, struct fuse_kstatfs *attr)
-{
-	stbuf->f_type    = FUSE_SUPER_MAGIC;
-	stbuf->f_bsize   = attr->bsize;
-	stbuf->f_frsize  = attr->frsize;
-	stbuf->f_blocks  = attr->blocks;
-	stbuf->f_bfree   = attr->bfree;
-	stbuf->f_bavail  = attr->bavail;
-	stbuf->f_files   = attr->files;
-	stbuf->f_ffree   = attr->ffree;
-	stbuf->f_namelen = attr->namelen;
-	/* fsid is left zero */
-}
-
-#ifdef KERNEL_2_6_18_PLUS
-static int fuse_statfs(struct dentry *dentry, struct kstatfs *buf)
-#else
-static int fuse_statfs(struct super_block *sb, struct kstatfs *buf)
-#endif
-{
-#ifdef KERNEL_2_6_18_PLUS
-	struct super_block *sb = dentry->d_sb;
-#endif
-	struct fuse_conn *fc = get_fuse_conn_super(sb);
-	struct fuse_req *req;
-	struct fuse_statfs_out outarg;
-	int err;
-
-	if (!fuse_allow_task(fc, current)) {
-		buf->f_type = FUSE_SUPER_MAGIC;
-		return 0;
-	}
-
-	req = fuse_get_req(fc);
-	if (IS_ERR(req))
-		return PTR_ERR(req);
-
-	memset(&outarg, 0, sizeof(outarg));
-	req->in.numargs = 0;
-	req->in.h.opcode = FUSE_STATFS;
-#ifdef KERNEL_2_6_18_PLUS
-	req->in.h.nodeid = get_node_id(dentry->d_inode);
-#endif
-	req->out.numargs = 1;
-	req->out.args[0].size =
-		fc->minor < 4 ? FUSE_COMPAT_STATFS_SIZE : sizeof(outarg);
-	req->out.args[0].value = &outarg;
-	request_send(fc, req);
-	err = req->out.h.error;
-	if (!err)
-		convert_fuse_statfs(buf, &outarg.st);
-	fuse_put_request(fc, req);
-	return err;
-}
-
-enum {
-	OPT_FD,
-	OPT_ROOTMODE,
-	OPT_USER_ID,
-	OPT_GROUP_ID,
-	OPT_DEFAULT_PERMISSIONS,
-	OPT_ALLOW_OTHER,
-	OPT_MAX_READ,
-	OPT_BLKSIZE,
-	OPT_ERR
-};
-
-static match_table_t tokens = {
-	{OPT_FD,			"fd=%u"},
-	{OPT_ROOTMODE,			"rootmode=%o"},
-	{OPT_USER_ID,			"user_id=%u"},
-	{OPT_GROUP_ID,			"group_id=%u"},
-	{OPT_DEFAULT_PERMISSIONS,	"default_permissions"},
-	{OPT_ALLOW_OTHER,		"allow_other"},
-	{OPT_MAX_READ,			"max_read=%u"},
-	{OPT_BLKSIZE,			"blksize=%u"},
-	{OPT_ERR,			NULL}
-};
-
-static int parse_fuse_opt(char *opt, struct fuse_mount_data *d, int is_bdev)
-{
-	char *p;
-	memset(d, 0, sizeof(struct fuse_mount_data));
-	d->max_read = ~0;
-	d->blksize = 512;
-
-	/*
-	 * For unprivileged mounts use current uid/gid.  Still allow
-	 * "user_id" and "group_id" options for compatibility, but
-	 * only if they match these values.
-	 */
-	if (!capable(CAP_SYS_ADMIN)) {
-		d->user_id = current->uid;
-		d->user_id_present = 1;
-		d->group_id = current->gid;
-		d->group_id_present = 1;
-
-	}
-
-	while ((p = strsep(&opt, ",")) != NULL) {
-		int token;
-		int value;
-		substring_t args[MAX_OPT_ARGS];
-		if (!*p)
-			continue;
-
-		token = match_token(p, tokens, args);
-		switch (token) {
-		case OPT_FD:
-			if (match_int(&args[0], &value))
-				return 0;
-			d->fd = value;
-			d->fd_present = 1;
-			break;
-
-		case OPT_ROOTMODE:
-			if (match_octal(&args[0], &value))
-				return 0;
-			if (!fuse_valid_type(value))
-				return 0;
-			d->rootmode = value;
-			d->rootmode_present = 1;
-			break;
-
-		case OPT_USER_ID:
-			if (match_int(&args[0], &value))
-				return 0;
-			if (d->user_id_present && d->user_id != value)
-				return 0;
-			d->user_id = value;
-			d->user_id_present = 1;
-			break;
-
-		case OPT_GROUP_ID:
-			if (match_int(&args[0], &value))
-				return 0;
-			if (d->group_id_present && d->group_id != value)
-				return 0;
-			d->group_id = value;
-			d->group_id_present = 1;
-			break;
-
-		case OPT_DEFAULT_PERMISSIONS:
-			d->flags |= FUSE_DEFAULT_PERMISSIONS;
-			break;
-
-		case OPT_ALLOW_OTHER:
-			d->flags |= FUSE_ALLOW_OTHER;
-			break;
-
-		case OPT_MAX_READ:
-			if (match_int(&args[0], &value))
-				return 0;
-			d->max_read = value;
-			break;
-
-		case OPT_BLKSIZE:
-			if (!is_bdev || match_int(&args[0], &value))
-				return 0;
-			d->blksize = value;
-			break;
-
-		default:
-			return 0;
-		}
-	}
-
-	if (!d->fd_present || !d->rootmode_present ||
-	    !d->user_id_present || !d->group_id_present)
-		return 0;
-
-	return 1;
-}
-
-static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
-{
-	struct fuse_conn *fc = get_fuse_conn_super(mnt->mnt_sb);
-
-	seq_printf(m, ",user_id=%u", fc->user_id);
-	seq_printf(m, ",group_id=%u", fc->group_id);
-	if (fc->flags & FUSE_DEFAULT_PERMISSIONS)
-		seq_puts(m, ",default_permissions");
-	if (fc->flags & FUSE_ALLOW_OTHER)
-		seq_puts(m, ",allow_other");
-	if (fc->max_read != ~0)
-		seq_printf(m, ",max_read=%u", fc->max_read);
-	return 0;
-}
-
-#ifndef HAVE_KZALLOC
-static void *kzalloc(size_t size, int flags)
-{
-	void *ret = kmalloc(size, flags);
-	if (ret)
-		memset(ret, 0, size);
-	return ret;
-}
-#endif
-static struct fuse_conn *new_conn(void)
-{
-	struct fuse_conn *fc;
-
-	fc = kzalloc(sizeof(*fc), GFP_KERNEL);
-	if (fc) {
-		spin_lock_init(&fc->lock);
-		mutex_init(&fc->inst_mutex);
-		atomic_set(&fc->count, 1);
-		init_waitqueue_head(&fc->waitq);
-		init_waitqueue_head(&fc->blocked_waitq);
-		init_waitqueue_head(&fc->reserved_req_waitq);
-		INIT_LIST_HEAD(&fc->pending);
-		INIT_LIST_HEAD(&fc->processing);
-		INIT_LIST_HEAD(&fc->io);
-		INIT_LIST_HEAD(&fc->interrupts);
-		atomic_set(&fc->num_waiting, 0);
-		fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
-		fc->bdi.unplug_io_fn = default_unplug_io_fn;
-		fc->reqctr = 0;
-		fc->blocked = 1;
-		get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
-	}
-	return fc;
-}
-
-void fuse_conn_put(struct fuse_conn *fc)
-{
-	if (atomic_dec_and_test(&fc->count)) {
-		if (fc->destroy_req)
-			fuse_request_free(fc->destroy_req);
-		mutex_destroy(&fc->inst_mutex);
-		kfree(fc);
-	}
-}
-
-struct fuse_conn *fuse_conn_get(struct fuse_conn *fc)
-{
-	atomic_inc(&fc->count);
-	return fc;
-}
-
-static struct inode *get_root_inode(struct super_block *sb, unsigned mode)
-{
-	struct fuse_attr attr;
-	memset(&attr, 0, sizeof(attr));
-
-	attr.mode = mode;
-	attr.ino = FUSE_ROOT_ID;
-	attr.nlink = 1;
-	return fuse_iget(sb, 1, 0, &attr);
-}
-#ifndef FUSE_MAINLINE
-#ifdef HAVE_EXPORTFS_H
-#include <linux/exportfs.h>
-#endif
-
-struct fuse_inode_handle
-{
-	u64 nodeid;
-	u32 generation;
-};
-
-static struct dentry *fuse_get_dentry(struct super_block *sb,
-				      struct fuse_inode_handle *handle)
-{
-	struct inode *inode;
-	struct dentry *entry;
-
-	if (handle->nodeid == 0)
-		return ERR_PTR(-ESTALE);
-
-	inode = ilookup5(sb, handle->nodeid, fuse_inode_eq, &handle->nodeid);
-	if (!inode)
-		return ERR_PTR(-ESTALE);
-	if (inode->i_generation != handle->generation) {
-		iput(inode);
-		return ERR_PTR(-ESTALE);
-	}
-
-	entry = d_alloc_anon(inode);
-	if (!entry) {
-		iput(inode);
-		return ERR_PTR(-ENOMEM);
-	}
-	entry->d_op = &fuse_dentry_operations;
-
-	return entry;
-}
-
-static int fuse_encode_fh(struct dentry *dentry, u32 *fh, int *max_len,
-			   int connectable)
-{
-	struct inode *inode = dentry->d_inode;
-	int len = *max_len;
-	int type = 1;
-	u64 nodeid;
-	u32 generation;
-
-	if (len < 3 || (connectable && len < 6))
-		return  255;
-
-	nodeid = get_fuse_inode(inode)->nodeid;
-	generation = inode->i_generation;
-
-	len = 3;
-	fh[0] = (u32)(nodeid >> 32);
-	fh[1] = (u32)(nodeid & 0xffffffff);
-	fh[2] = generation;
-
-	if (connectable && !S_ISDIR(inode->i_mode)) {
-		struct inode *parent;
-
-		spin_lock(&dentry->d_lock);
-		parent = dentry->d_parent->d_inode;
-		nodeid = get_fuse_inode(parent)->nodeid;
-		generation = parent->i_generation;
-
-		fh[3] = (u32)(nodeid >> 32);
-		fh[4] = (u32)(nodeid & 0xffffffff);
-		fh[5] = generation;
-		spin_unlock(&dentry->d_lock);
-
-		len = 6;
-		type = 2;
-	}
-
-	*max_len = len;
-	return type;
-}
-
-#ifdef KERNEL_2_6_24_PLUS
-static struct dentry *fuse_fh_to_dentry(struct super_block *sb,
-		struct fid *fid, int fh_len, int fh_type)
-{
-	struct fuse_inode_handle handle;
-
-	if (fh_len < 3 || fh_type > 2)
-		return NULL;
-
-	handle.nodeid = (u64) fid->raw[0] << 32;
-	handle.nodeid |= (u64) fid->raw[1];
-	handle.generation = fid->raw[2];
-	return fuse_get_dentry(sb, &handle);
-}
-
-static struct dentry *fuse_fh_to_parent(struct super_block *sb,
-		struct fid *fid, int fh_len, int fh_type)
-{
-	struct fuse_inode_handle parent;
-
-	if (fh_type != 2 || fh_len < 6)
-		return NULL;
-
-	parent.nodeid = (u64) fid->raw[3] << 32;
-	parent.nodeid |= (u64) fid->raw[4];
-	parent.generation = fid->raw[5];
-	return fuse_get_dentry(sb, &parent);
-}
-
-
-static const struct export_operations fuse_export_operations = {
-	.fh_to_dentry	= fuse_fh_to_dentry,
-	.fh_to_parent	= fuse_fh_to_parent,
-	.encode_fh	= fuse_encode_fh,
-};
-#else
-static struct dentry *fuse_get_dentry_old(struct super_block *sb, void *objp)
-{
-	return fuse_get_dentry(sb, objp);
-}
-
-static struct export_operations fuse_export_operations;
-
-static struct dentry *fuse_decode_fh(struct super_block *sb, u32 *fh,
-			int fh_len, int fileid_type,
-			int (*acceptable)(void *context, struct dentry *de),
-			void *context)
-{
-	struct fuse_inode_handle handle;
-	struct fuse_inode_handle parent;
-
-	if (fh_len < 3 || fileid_type > 2)
-		return NULL;
-
-	if (fileid_type == 2) {
-		if (fh_len < 6)
-			return NULL;
-
-		parent.nodeid = (u64) fh[3] << 32;
-		parent.nodeid |= (u64) fh[4];
-		parent.generation = fh[5];
-	} else {
-		parent.nodeid = 0;
-		parent.generation = 0;
-	}
-
-	handle.nodeid = (u64) fh[0] << 32;
-	handle.nodeid |= (u64) fh[1];
-	handle.generation = fh[2];
-
-	return fuse_export_operations.
-		find_exported_dentry(sb, &handle, &parent, acceptable, context);
-}
-
-static struct export_operations fuse_export_operations = {
-	.get_dentry	= fuse_get_dentry_old,
-	.encode_fh      = fuse_encode_fh,
-	.decode_fh	= fuse_decode_fh,
-};
-#endif
-#endif
-
-static struct super_operations fuse_super_operations = {
-	.alloc_inode    = fuse_alloc_inode,
-	.destroy_inode  = fuse_destroy_inode,
-	.read_inode	= fuse_read_inode,
-	.clear_inode	= fuse_clear_inode,
-	.drop_inode	= generic_delete_inode,
-	.remount_fs	= fuse_remount_fs,
-	.put_super	= fuse_put_super,
-	.umount_begin	= fuse_umount_begin,
-	.statfs		= fuse_statfs,
-	.show_options	= fuse_show_options,
-};
-
-static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
-{
-	struct fuse_init_out *arg = &req->misc.init_out;
-
-	if (req->out.h.error || arg->major != FUSE_KERNEL_VERSION)
-		fc->conn_error = 1;
-	else {
-		unsigned long ra_pages;
-
-		if (arg->minor >= 6) {
-			ra_pages = arg->max_readahead / PAGE_CACHE_SIZE;
-			if (arg->flags & FUSE_ASYNC_READ)
-				fc->async_read = 1;
-			if (!(arg->flags & FUSE_POSIX_LOCKS))
-				fc->no_lock = 1;
-		} else {
-			ra_pages = fc->max_read / PAGE_CACHE_SIZE;
-			fc->no_lock = 1;
-		}
-
-		fc->bdi.ra_pages = min(fc->bdi.ra_pages, ra_pages);
-		fc->minor = arg->minor;
-		fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
-		fc->conn_init = 1;
-	}
-	fuse_put_request(fc, req);
-	fc->blocked = 0;
-	wake_up_all(&fc->blocked_waitq);
-}
-
-static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
-{
-	struct fuse_init_in *arg = &req->misc.init_in;
-
-	arg->major = FUSE_KERNEL_VERSION;
-	arg->minor = FUSE_KERNEL_MINOR_VERSION;
-	arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE;
-	arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS;
-	req->in.h.opcode = FUSE_INIT;
-	req->in.numargs = 1;
-	req->in.args[0].size = sizeof(*arg);
-	req->in.args[0].value = arg;
-	req->out.numargs = 1;
-	/* Variable length arguement used for backward compatibility
-	   with interface version < 7.5.  Rest of init_out is zeroed
-	   by do_get_request(), so a short reply is not a problem */
-	req->out.argvar = 1;
-	req->out.args[0].size = sizeof(struct fuse_init_out);
-	req->out.args[0].value = &req->misc.init_out;
-	req->end = process_init_reply;
-	request_send_background(fc, req);
-}
-
-static u64 conn_id(void)
-{
-	static u64 ctr = 1;
-	return ctr++;
-}
-
-static int fuse_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct fuse_conn *fc;
-	struct inode *root;
-	struct fuse_mount_data d;
-	struct file *file;
-	struct dentry *root_dentry;
-	struct fuse_req *init_req;
-	int err;
-	int is_bdev = sb->s_bdev != NULL;
-
-	if (sb->s_flags & MS_MANDLOCK)
-		return -EINVAL;
-
-	if (!parse_fuse_opt((char *) data, &d, is_bdev))
-		return -EINVAL;
-
-	/* This is a privileged option */
-	if ((d.flags & FUSE_ALLOW_OTHER) && !capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	if (is_bdev) {
-#ifdef CONFIG_BLOCK
-		if (!sb_set_blocksize(sb, d.blksize))
-			return -EINVAL;
-#endif
-	} else {
-		sb->s_blocksize = PAGE_CACHE_SIZE;
-		sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
-	}
-	sb->s_magic = FUSE_SUPER_MAGIC;
-	sb->s_op = &fuse_super_operations;
-	sb->s_maxbytes = MAX_LFS_FILESIZE;
-#ifndef FUSE_MAINLINE
-	sb->s_export_op = &fuse_export_operations;
-#endif
-
-	file = fget(d.fd);
-	if (!file)
-		return -EINVAL;
-
-	if (file->f_op != &fuse_dev_operations)
-		return -EINVAL;
-
-	fc = new_conn();
-	if (!fc)
-		return -ENOMEM;
-
-	fc->flags = d.flags;
-	fc->user_id = d.user_id;
-	fc->group_id = d.group_id;
-	fc->max_read = d.max_read;
-
-	/* Used by get_root_inode() */
-	sb->s_fs_info = fc;
-
-	err = -ENOMEM;
-	root = get_root_inode(sb, d.rootmode);
-	if (!root)
-		goto err;
-
-	root_dentry = d_alloc_root(root);
-	if (!root_dentry) {
-		iput(root);
-		goto err;
-	}
-
-	init_req = fuse_request_alloc();
-	if (!init_req)
-		goto err_put_root;
-
-	if (is_bdev) {
-		fc->destroy_req = fuse_request_alloc();
-		if (!fc->destroy_req)
-			goto err_put_root;
-	}
-
-	mutex_lock(&fuse_mutex);
-	err = -EINVAL;
-	if (file->private_data)
-		goto err_unlock;
-
-	fc->id = conn_id();
-	err = fuse_ctl_add_conn(fc);
-	if (err)
-		goto err_unlock;
-
-	list_add_tail(&fc->entry, &fuse_conn_list);
-	sb->s_root = root_dentry;
-	fc->connected = 1;
-	file->private_data = fuse_conn_get(fc);
-	mutex_unlock(&fuse_mutex);
-	/*
-	 * atomic_dec_and_test() in fput() provides the necessary
-	 * memory barrier for file->private_data to be visible on all
-	 * CPUs after this
-	 */
-	fput(file);
-
-	fuse_send_init(fc, init_req);
-
-	return 0;
-
- err_unlock:
-	mutex_unlock(&fuse_mutex);
-	fuse_request_free(init_req);
- err_put_root:
-	dput(root_dentry);
- err:
-	fput(file);
-	fuse_conn_put(fc);
-	return err;
-}
-
-#ifdef KERNEL_2_6_18_PLUS
-static int fuse_get_sb(struct file_system_type *fs_type,
-		       int flags, const char *dev_name,
-		       void *raw_data, struct vfsmount *mnt)
-{
-	return get_sb_nodev(fs_type, flags, raw_data, fuse_fill_super, mnt);
-}
-#else
-static struct super_block *fuse_get_sb(struct file_system_type *fs_type,
-				       int flags, const char *dev_name,
-				       void *raw_data)
-{
-	return get_sb_nodev(fs_type, flags, raw_data, fuse_fill_super);
-}
-#endif
-
-static struct file_system_type fuse_fs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "fuse",
-	.get_sb		= fuse_get_sb,
-	.kill_sb	= kill_anon_super,
-	.fs_flags	= FS_HAS_SUBTYPE | FS_SAFE,
-};
-
-#ifdef CONFIG_BLOCK
-#ifdef KERNEL_2_6_18_PLUS
-static int fuse_get_sb_blk(struct file_system_type *fs_type,
-			   int flags, const char *dev_name,
-			   void *raw_data, struct vfsmount *mnt)
-{
-	return get_sb_bdev(fs_type, flags, dev_name, raw_data, fuse_fill_super,
-			   mnt);
-}
-#else
-static struct super_block *fuse_get_sb_blk(struct file_system_type *fs_type,
-					   int flags, const char *dev_name,
-					   void *raw_data)
-{
-	return get_sb_bdev(fs_type, flags, dev_name, raw_data,
-			   fuse_fill_super);
-}
-#endif
-
-static struct file_system_type fuseblk_fs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "fuseblk",
-	.get_sb		= fuse_get_sb_blk,
-	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV | FS_HAS_SUBTYPE,
-};
-
-static inline int register_fuseblk(void)
-{
-	return register_filesystem(&fuseblk_fs_type);
-}
-
-static inline void unregister_fuseblk(void)
-{
-	unregister_filesystem(&fuseblk_fs_type);
-}
-#else
-static inline int register_fuseblk(void)
-{
-	return 0;
-}
-
-static inline void unregister_fuseblk(void)
-{
-}
-#endif
-
-#ifndef HAVE_FS_SUBSYS
-static decl_subsys(fs, NULL, NULL);
-#endif
-static decl_subsys(fuse, NULL, NULL);
-static decl_subsys(connections, NULL, NULL);
-
-#ifdef KERNEL_2_6_24_PLUS
-static void fuse_inode_init_once(struct kmem_cache *cachep, void *foo)
-#else
-static void fuse_inode_init_once(void *foo, struct kmem_cache *cachep,
-				 unsigned long flags)
-#endif
-{
-	struct inode * inode = foo;
-
-#ifndef KERNEL_2_6_22_PLUS
-	if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
-	    SLAB_CTOR_CONSTRUCTOR)
-#endif
-	inode_init_once(inode);
-}
-
-static int __init fuse_fs_init(void)
-{
-	int err;
-
-	err = register_filesystem(&fuse_fs_type);
-	if (err)
-		goto out;
-
-	err = register_fuseblk();
-	if (err)
-		goto out_unreg;
-
-#ifdef KERNEL_2_6_23_PLUS
-	fuse_inode_cachep = kmem_cache_create("fuse_inode",
-					      sizeof(struct fuse_inode),
-					      0, SLAB_HWCACHE_ALIGN,
-					      fuse_inode_init_once);
-#else
-	fuse_inode_cachep = kmem_cache_create("fuse_inode",
-					      sizeof(struct fuse_inode),
-					      0, SLAB_HWCACHE_ALIGN,
-					      fuse_inode_init_once, NULL);
-#endif
-
-	err = -ENOMEM;
-	if (!fuse_inode_cachep)
-		goto out_unreg2;
-
-	return 0;
-
- out_unreg2:
-	unregister_fuseblk();
- out_unreg:
-	unregister_filesystem(&fuse_fs_type);
- out:
-	return err;
-}
-
-static void fuse_fs_cleanup(void)
-{
-	unregister_filesystem(&fuse_fs_type);
-	unregister_fuseblk();
-	kmem_cache_destroy(fuse_inode_cachep);
-}
-
-static int fuse_sysfs_init(void)
-{
-	int err;
-
-#ifndef HAVE_FS_SUBSYS
-	err = subsystem_register(&fs_subsys);
-	if (err)
-		return err;
-#endif
-#ifdef KERNEL_2_6_22_PLUS
-	kobj_set_kset_s(&fuse_subsys, fs_subsys);
-#else
-	kset_set_kset_s(&fuse_subsys, fs_subsys);
-#endif
-	err = subsystem_register(&fuse_subsys);
-	if (err)
-		goto out_err;
-
-#ifdef KERNEL_2_6_22_PLUS
-	kobj_set_kset_s(&connections_subsys, fuse_subsys);
-#else
-	kset_set_kset_s(&connections_subsys, fuse_subsys);
-#endif
-	err = subsystem_register(&connections_subsys);
-	if (err)
-		goto out_fuse_unregister;
-
-	return 0;
-
- out_fuse_unregister:
-	subsystem_unregister(&fuse_subsys);
- out_err:
-#ifndef HAVE_FS_SUBSYS
-	subsystem_unregister(&fs_subsys);
-#endif
-	return err;
-}
-
-static void fuse_sysfs_cleanup(void)
-{
-	subsystem_unregister(&connections_subsys);
-	subsystem_unregister(&fuse_subsys);
-#ifndef HAVE_FS_SUBSYS
-	subsystem_unregister(&fs_subsys);
-#endif
-}
-
-static int __init fuse_init(void)
-{
-	int res;
-
-	printk("fuse init (API version %i.%i)\n",
-	       FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION);
-#ifndef FUSE_MAINLINE
-	printk("fuse distribution version: %s\n", FUSE_VERSION);
-#endif
-
-	INIT_LIST_HEAD(&fuse_conn_list);
-	res = fuse_fs_init();
-	if (res)
-		goto err;
-
-	res = fuse_dev_init();
-	if (res)
-		goto err_fs_cleanup;
-
-	res = fuse_sysfs_init();
-	if (res)
-		goto err_dev_cleanup;
-
-	res = fuse_ctl_init();
-	if (res)
-		goto err_sysfs_cleanup;
-
-	return 0;
-
- err_sysfs_cleanup:
-	fuse_sysfs_cleanup();
- err_dev_cleanup:
-	fuse_dev_cleanup();
- err_fs_cleanup:
-	fuse_fs_cleanup();
- err:
-	return res;
-}
-
-static void __exit fuse_exit(void)
-{
-	printk(KERN_DEBUG "fuse exit\n");
-
-	fuse_ctl_cleanup();
-	fuse_sysfs_cleanup();
-	fuse_fs_cleanup();
-	fuse_dev_cleanup();
-}
-
-module_init(fuse_init);
-module_exit(fuse_exit);