-}
-
-/**
- * v9fs_inode2v9ses - safely extract v9fs session info from super block
- * @inode: inode to extract information from
- *
- * Paranoid function to extract v9ses information from superblock,
- * if anything is missing it will report an error.
- *
- */
-
-struct v9fs_session_info *v9fs_inode2v9ses(struct inode *inode)
-{
- return (inode->i_sb->s_fs_info);
-}
-
-/**
- * v9fs_get_idpool - allocate numeric id from pool
- * @p - pool to allocate from
- *
- * XXX - This seems to be an awful generic function, should it be in idr.c with
- * the lock included in struct idr?
- */
-
-int v9fs_get_idpool(struct v9fs_idpool *p)
-{
- int i = 0;
- int error;
-
-retry:
- if (idr_pre_get(&p->pool, GFP_KERNEL) == 0)
- return 0;
-
- if (down_interruptible(&p->lock) == -EINTR) {
- eprintk(KERN_WARNING, "Interrupted while locking\n");
- return -1;
- }
-
- /* no need to store exactly p, we just need something non-null */
- error = idr_get_new(&p->pool, p, &i);
- up(&p->lock);
-
- if (error == -EAGAIN)
- goto retry;
- else if (error)
- return -1;
-
- return i;
-}
-
-/**
- * v9fs_put_idpool - release numeric id from pool
- * @p - pool to allocate from
- *
- * XXX - This seems to be an awful generic function, should it be in idr.c with
- * the lock included in struct idr?
- */
-
-void v9fs_put_idpool(int id, struct v9fs_idpool *p)
-{
- if (down_interruptible(&p->lock) == -EINTR) {
- eprintk(KERN_WARNING, "Interrupted while locking\n");
- return;
- }
- idr_remove(&p->pool, id);
- up(&p->lock);
-}
-
-/**
- * v9fs_check_idpool - check if the specified id is available
- * @id - id to check
- * @p - pool
- */
-int v9fs_check_idpool(int id, struct v9fs_idpool *p)
-{
- return idr_find(&p->pool, id) != NULL;