cifs_push_posix_locks(struct cifsFileInfo *cfile)
{
	struct inode *inode = cfile->dentry->d_inode;
	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
	struct file_lock *flock, **before;
	unsigned int count = 0, i = 0;
	int rc = 0, xid, type;
	struct list_head locks_to_send, *el;
	struct lock_to_push *lck, *tmp;
	__u64 length;

	xid = get_xid();

	spin_lock(&inode->i_lock);
	cifs_for_each_lock(inode, before) {
		if ((*before)->fl_flags & FL_POSIX)
			count++;
	}
	spin_unlock(&inode->i_lock);

	INIT_LIST_HEAD(&locks_to_send);

	/*
	 * Allocating count locks is enough because no FL_POSIX locks can be
	 * added to the list while we are holding cinode->lock_sem that
	 * protects locking operations of this inode.
	 */
	for (; i < count; i++) {
		lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL);
		if (!lck) {
			rc = -ENOMEM;
			goto err_out;
		}
		list_add_tail(&lck->llist, &locks_to_send);
	}

	el = locks_to_send.next;
	spin_lock(&inode->i_lock);
	cifs_for_each_lock(inode, before) {
		flock = *before;
		if ((flock->fl_flags & FL_POSIX) == 0)
			continue;
		if (el == &locks_to_send) {
			/*
			 * The list ended. We don't have enough allocated
			 * structures - something is really wrong.
			 */
			cifs_dbg(VFS, "Can't push all brlocks!\n");
			break;
		}
		length = 1 + flock->fl_end - flock->fl_start;
		if (flock->fl_type == F_RDLCK || flock->fl_type == F_SHLCK)
			type = CIFS_RDLCK;
		else
			type = CIFS_WRLCK;
		lck = list_entry(el, struct lock_to_push, llist);
		lck->pid = flock->fl_pid;
		lck->netfid = cfile->fid.netfid;
		lck->length = length;
		lck->type = type;
		lck->offset = flock->fl_start;
		el = el->next;
	}
	spin_unlock(&inode->i_lock);

	list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
		int stored_rc;

		stored_rc = CIFSSMBPosixLock(xid, tcon, lck->netfid, lck->pid,
					     lck->offset, lck->length, NULL,
					     lck->type, 0);
		if (stored_rc)
			rc = stored_rc;
		list_del(&lck->llist);
		kfree(lck);
	}

out:
	free_xid(xid);
	return rc;
err_out:
	list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
		list_del(&lck->llist);
		kfree(lck);
	}
	goto out;
}
cifs_push_posix_locks(struct cifsFileInfo *cfile)
{
	struct inode *inode = cfile->dentry->d_inode;
	struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
	struct file_lock *flock, **before;
	unsigned int count = 0, i = 0;
	int rc = 0, xid, type;
	struct list_head locks_to_send, *el;
	struct lock_to_push *lck, *tmp;
	__u64 length;

	xid = get_xid();

	spin_lock(&inode->i_lock);
	cifs_for_each_lock(inode, before) {
		if ((*before)->fl_flags & FL_POSIX)
			count++;
	}
	spin_unlock(&inode->i_lock);

	INIT_LIST_HEAD(&locks_to_send);

	 
	for (; i < count; i++) {
		lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL);
		if (!lck) {
			rc = -ENOMEM;
			goto err_out;
		}
		list_add_tail(&lck->llist, &locks_to_send);
	}

	el = locks_to_send.next;
	spin_lock(&inode->i_lock);
	cifs_for_each_lock(inode, before) {
		flock = *before;
		if ((flock->fl_flags & FL_POSIX) == 0)
			continue;
		if (el == &locks_to_send) {
			 
			cifs_dbg(VFS, "Can't push all brlocks!\n");
			break;
		}
		length = 1 + flock->fl_end - flock->fl_start;
		if (flock->fl_type == F_RDLCK || flock->fl_type == F_SHLCK)
			type = CIFS_RDLCK;
		else
			type = CIFS_WRLCK;
		lck = list_entry(el, struct lock_to_push, llist);
		lck->pid = flock->fl_pid;
		lck->netfid = cfile->fid.netfid;
		lck->length = length;
		lck->type = type;
		lck->offset = flock->fl_start;
		el = el->next;
	}
	spin_unlock(&inode->i_lock);

	list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
		int stored_rc;

		stored_rc = CIFSSMBPosixLock(xid, tcon, lck->netfid, lck->pid,
					     lck->offset, lck->length, NULL,
					     lck->type, 0);
		if (stored_rc)
			rc = stored_rc;
		list_del(&lck->llist);
		kfree(lck);
	}

out:
	free_xid(xid);
	return rc;
err_out:
	list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) {
		list_del(&lck->llist);
		kfree(lck);
	}
	goto out;
}