NFSv4: Fix CB_RECALL_ANY to only return delegations that are not in use
Trond Myklebust [Wed, 3 Apr 2013 23:27:52 +0000 (19:27 -0400)]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/callback_proc.c
fs/nfs/delegation.c
fs/nfs/delegation.h

index 2960512..a13d26e 100644 (file)
@@ -500,7 +500,7 @@ __be32 nfs4_callback_recallany(struct cb_recallanyargs *args, void *dummy,
                     &args->craa_type_mask))
                pnfs_recall_all_layouts(cps->clp);
        if (flags)
-               nfs_expire_all_delegation_types(cps->clp, flags);
+               nfs_expire_unused_delegation_types(cps->clp, flags);
 out:
        dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
        return status;
index 60e2e6e..f30bd1e 100644 (file)
@@ -564,7 +564,7 @@ void nfs_server_return_all_delegations(struct nfs_server *server)
        }
 }
 
-static void nfs_mark_return_all_delegation_types(struct nfs_server *server,
+static void nfs_mark_return_unused_delegation_types(struct nfs_server *server,
                                                 fmode_t flags)
 {
        struct nfs_delegation *delegation;
@@ -573,18 +573,18 @@ static void nfs_mark_return_all_delegation_types(struct nfs_server *server,
                if ((delegation->type == (FMODE_READ|FMODE_WRITE)) && !(flags & FMODE_WRITE))
                        continue;
                if (delegation->type & flags)
-                       nfs_mark_return_delegation(server, delegation);
+                       nfs_mark_return_if_closed_delegation(server, delegation);
        }
 }
 
-static void nfs_client_mark_return_all_delegation_types(struct nfs_client *clp,
+static void nfs_client_mark_return_unused_delegation_types(struct nfs_client *clp,
                                                        fmode_t flags)
 {
        struct nfs_server *server;
 
        rcu_read_lock();
        list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link)
-               nfs_mark_return_all_delegation_types(server, flags);
+               nfs_mark_return_unused_delegation_types(server, flags);
        rcu_read_unlock();
 }
 
@@ -601,14 +601,14 @@ void nfs_remove_bad_delegation(struct inode *inode)
 EXPORT_SYMBOL_GPL(nfs_remove_bad_delegation);
 
 /**
- * nfs_expire_all_delegation_types
+ * nfs_expire_unused_delegation_types
  * @clp: client to process
  * @flags: delegation types to expire
  *
  */
-void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags)
+void nfs_expire_unused_delegation_types(struct nfs_client *clp, fmode_t flags)
 {
-       nfs_client_mark_return_all_delegation_types(clp, flags);
+       nfs_client_mark_return_unused_delegation_types(clp, flags);
        nfs_delegation_run_state_manager(clp);
 }
 
index 22f0a13..9a79c7a 100644 (file)
@@ -42,7 +42,7 @@ void nfs_inode_return_delegation_noreclaim(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 *);
 void nfs_expire_all_delegations(struct nfs_client *clp);
-void nfs_expire_all_delegation_types(struct nfs_client *clp, fmode_t flags);
+void nfs_expire_unused_delegation_types(struct nfs_client *clp, fmode_t flags);
 void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
 int nfs_client_return_marked_delegations(struct nfs_client *clp);
 int nfs_delegations_present(struct nfs_client *clp);