4 files changed, 19 insertions, 13 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 187caa47dad9..e79bc6ce828e 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1139,14 +1139,13 @@ out_zap_parent:
         if (inode && S_ISDIR(inode->i_mode)) {
                 /* Purge readdir caches. */
                 nfs_zap_caches(inode);
-                /* If we have submounts, don't unhash ! */
-                if (have_submounts(dentry))
-                        goto out_valid;
                 if (dentry->d_flags & DCACHE_DISCONNECTED)
                         goto out_valid;
-                shrink_dcache_parent(dentry);
         }
-        d_drop(dentry);
+        /* If we have submounts, don't unhash ! */
+        if (check_submounts_and_drop(dentry) != 0)
+                goto out_valid;
+
         dput(parent);
         dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is invalid\n",
                         __func__, dentry->d_parent->d_name.name,
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 4bcb00ae30ae..87e797640828 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -464,7 +464,6 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
                 unlock_new_inode(inode);
         } else
                 nfs_refresh_inode(inode, fattr);
-                nfs_setsecurity(inode, fattr, label);
         dprintk("NFS: nfs_fhget(%s/%Ld fh_crc=0x%08x ct=%d)\n",
                 inode->i_sb->s_id,
                 (long long)NFS_FILEID(inode),
@@ -972,9 +971,15 @@ EXPORT_SYMBOL_GPL(nfs_revalidate_inode);
 static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
 {
         struct nfs_inode *nfsi = NFS_I(inode);
-        
+        int ret;
+
         if (mapping->nrpages != 0) {
-                int ret = invalidate_inode_pages2(mapping);
+                if (S_ISREG(inode->i_mode)) {
+                        ret = nfs_sync_mapping(mapping);
+                        if (ret < 0)
+                                return ret;
+                }
+                ret = invalidate_inode_pages2(mapping);
                 if (ret < 0)
                         return ret;
         }
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4b6a2f05b335..989bb9d3074d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3196,15 +3196,13 @@ struct rpc_clnt *
 nfs4_proc_lookup_mountpoint(struct inode *dir, struct qstr *name,
                             struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 {
+        struct rpc_clnt *client = NFS_CLIENT(dir);
         int status;
-        struct rpc_clnt *client = rpc_clone_client(NFS_CLIENT(dir));
 
         status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr, NULL);
-        if (status < 0) {
-                rpc_shutdown_client(client);
+        if (status < 0)
                 return ERR_PTR(status);
-        }
-        return client;
+        return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client;
 }
 
 static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 50bc31d8e7f0..5793f24613c8 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2509,6 +2509,10 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
         if (server->flags & NFS_MOUNT_NOAC)
                 sb_mntdata.mntflags |= MS_SYNCHRONOUS;
 
+        if (mount_info->cloned != NULL && mount_info->cloned->sb != NULL)
+                if (mount_info->cloned->sb->s_flags & MS_SYNCHRONOUS)
+                        sb_mntdata.mntflags |= MS_SYNCHRONOUS;
+
         /* Get a superblock - note that we may end up sharing one that already exists */
         s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata);
         if (IS_ERR(s)) {