NFS: Rename nfs_inode_return_delegation_noreclaim()

Rename nfs_inode_return_delegation_noreclaim() to
nfs_inode_evict_delegation(), which better describes what it
does.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

fs/nfs/delegation.c

@@ -585,19 +585,22 @@ int nfs_client_return_marked_delegations(struct nfs_client *clp)
 }
 
 /**
- * nfs_inode_return_delegation_noreclaim - return delegation, don't reclaim opens
+ * nfs_inode_evict_delegation - return delegation, don't reclaim opens
  * @inode: inode to process
  *
  * Does not protect against delegation reclaims, therefore really only safe
- * to be called from nfs4_clear_inode().
+ * to be called from nfs4_clear_inode(). Guaranteed to always free
+ * the delegation structure.
  */
-void nfs_inode_return_delegation_noreclaim(struct inode *inode)
+void nfs_inode_evict_delegation(struct inode *inode)
 {
 	struct nfs_delegation *delegation;
 
 	delegation = nfs_inode_detach_delegation(inode);
-	if (delegation != NULL)
+	if (delegation != NULL) {
+		set_bit(NFS_DELEGATION_INODE_FREEING, &delegation->flags);
 		nfs_do_return_delegation(inode, delegation, 1);
+	}
 }
 
 /**

fs/nfs/delegation.h

@@ -43,7 +43,7 @@ void nfs_inode_reclaim_delegation(struct inode *inode, const struct cred *cred,
 		fmode_t type, const nfs4_stateid *stateid, unsigned long pagemod_limit);
 int nfs4_inode_return_delegation(struct inode *inode);
 int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
-void nfs_inode_return_delegation_noreclaim(struct inode *inode);
+void nfs_inode_evict_delegation(struct inode *inode);
 
 struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);
 void nfs_server_return_all_delegations(struct nfs_server *);

fs/nfs/nfs4super.c

@@ -92,8 +92,8 @@ static void nfs4_evict_inode(struct inode *inode)
 {
 	truncate_inode_pages_final(&inode->i_data);
 	clear_inode(inode);
-	/* If we are holding a delegation, return it! */
-	nfs_inode_return_delegation_noreclaim(inode);
+	/* If we are holding a delegation, return and free it */
+	nfs_inode_evict_delegation(inode);
 	/* Note that above delegreturn would trigger pnfs return-on-close */
 	pnfs_return_layout(inode);
 	pnfs_destroy_layout(NFS_I(inode));