1 files changed, 43 insertions, 2 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 6f88d7c77ac9..5cb3345eb694 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -523,8 +523,12 @@ struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
 
 static void __put_nfs_open_context(struct nfs_open_context *ctx, int wait)
 {
-        struct inode *inode = ctx->path.dentry->d_inode;
+        struct inode *inode;
 
+        if (ctx == NULL)
+                return;
+
+        inode = ctx->path.dentry->d_inode;
         if (!atomic_dec_and_lock(&ctx->count, &inode->i_lock))
                 return;
         list_del(&ctx->list);
@@ -610,7 +614,7 @@ int nfs_open(struct inode *inode, struct file *filp)
         struct nfs_open_context *ctx;
         struct rpc_cred *cred;
 
-        cred = rpcauth_lookupcred(NFS_CLIENT(inode)->cl_auth, 0);
+        cred = rpc_lookup_cred();
         if (IS_ERR(cred))
                 return PTR_ERR(cred);
         ctx = alloc_nfs_open_context(filp->f_path.mnt, filp->f_path.dentry, cred);
@@ -1218,6 +1222,36 @@ static void nfs_destroy_inodecache(void)
         kmem_cache_destroy(nfs_inode_cachep);
 }
 
+struct workqueue_struct *nfsiod_workqueue;
+
+/*
+ * start up the nfsiod workqueue
+ */
+static int nfsiod_start(void)
+{
+        struct workqueue_struct *wq;
+        dprintk("RPC:       creating workqueue nfsiod\n");
+        wq = create_singlethread_workqueue("nfsiod");
+        if (wq == NULL)
+                return -ENOMEM;
+        nfsiod_workqueue = wq;
+        return 0;
+}
+
+/*
+ * Destroy the nfsiod workqueue
+ */
+static void nfsiod_stop(void)
+{
+        struct workqueue_struct *wq;
+
+        wq = nfsiod_workqueue;
+        if (wq == NULL)
+                return;
+        nfsiod_workqueue = NULL;
+        destroy_workqueue(wq);
+}
+
 /*
  * Initialize NFS
  */
@@ -1225,6 +1259,10 @@ static int __init init_nfs_fs(void)
 {
         int err;
 
+        err = nfsiod_start();
+        if (err)
+                goto out6;
+
         err = nfs_fs_proc_init();
         if (err)
                 goto out5;
@@ -1271,6 +1309,8 @@ out3:
 out4:
         nfs_fs_proc_exit();
 out5:
+        nfsiod_stop();
+out6:
         return err;
 }
 
@@ -1286,6 +1326,7 @@ static void __exit exit_nfs_fs(void)
 #endif
         unregister_nfs_fs();
         nfs_fs_proc_exit();
+        nfsiod_stop();
 }
 
 /* Not quite true; I just maintain it */