nfs41: sessions client infrastructure

[linux-2.6-block.git] / fs / nfs / nfs4proc.c

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4674f8092da8aaa52ae4af6835c6b150341efe66..cdd8e74c47d079bc0f58243eddd57098fcebf723 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3723,6 +3723,40 @@ int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
        return status;
 }
 
+#ifdef CONFIG_NFS_V4_1
+/* Destroy the slot table */
+static void nfs4_destroy_slot_table(struct nfs4_session *session)
+{
+       if (session->fc_slot_table.slots == NULL)
+               return;
+       kfree(session->fc_slot_table.slots);
+       session->fc_slot_table.slots = NULL;
+       return;
+}
+
+struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
+{
+       struct nfs4_session *session;
+       struct nfs4_slot_table *tbl;
+
+       session = kzalloc(sizeof(struct nfs4_session), GFP_KERNEL);
+       if (!session)
+               return NULL;
+       tbl = &session->fc_slot_table;
+       spin_lock_init(&tbl->slot_tbl_lock);
+       rpc_init_wait_queue(&tbl->slot_tbl_waitq, "Slot table");
+       session->clp = clp;
+       return session;
+}
+
+void nfs4_destroy_session(struct nfs4_session *session)
+{
+       nfs4_destroy_slot_table(session);
+       kfree(session);
+}
+
+#endif /* CONFIG_NFS_V4_1 */
+
 struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = {
        .owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT,
        .state_flag_bit = NFS_STATE_RECLAIM_REBOOT,