Merge branch 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

* 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (26 commits)
  Check validity of cl_rpcclient in nfs_server_list_show
  NFS: Get rid of the nfs_rdata_mempool
  NFS: Don't rely on PageError in nfs_readpage_release_partial
  NFS: Get rid of unnecessary calls to ClearPageError() in read code
  NFS: Get rid of nfs_restart_rpc()
  NFS: Get rid of the unused nfs_write_data->flags field
  NFS: Get rid of the unused nfs_read_data->flags field
  NFSv4: Translate NFS4ERR_BADNAME into ENOENT when applied to a lookup
  NFS: Remove the unused "lookupfh()" version of nfs4_proc_lookup()
  NFS: Use the inode->i_version to cache NFSv4 change attribute information
  SUNRPC: Remove unnecessary export of rpc_sockaddr2uaddr
  SUNRPC: Fix rpc_sockaddr2uaddr
  nfs/super.c: local functions should be static
  pnfsblock: fix writeback deadlock
  pnfsblock: fix NULL pointer dereference
  pnfs: recoalesce when ld read pagelist fails
  pnfs: recoalesce when ld write pagelist fails
  pnfs: make _set_lo_fail generic
  pnfsblock: add missing rpc_put_mount and path_put
  SUNRPC/NFS: make rpc pipe upcall generic
  ...

5 files changed, 31 insertions, 29 deletions

diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index 4195233c4914..4548757c9871 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -255,12 +255,13 @@ EXPORT_SYMBOL_GPL(rpc_pton);
 /**
  * rpc_sockaddr2uaddr - Construct a universal address string from @sap.
  * @sap: socket address
+ * @gfp_flags: allocation mode
  *
  * Returns a %NUL-terminated string in dynamically allocated memory;
  * otherwise NULL is returned if an error occurred.  Caller must
  * free the returned string.
  */
-char *rpc_sockaddr2uaddr(const struct sockaddr *sap)
+char *rpc_sockaddr2uaddr(const struct sockaddr *sap, gfp_t gfp_flags)
 {
 	char portbuf[RPCBIND_MAXUADDRPLEN];
 	char addrbuf[RPCBIND_MAXUADDRLEN];
@@ -288,9 +289,8 @@ char *rpc_sockaddr2uaddr(const struct sockaddr *sap)
 	if (strlcat(addrbuf, portbuf, sizeof(addrbuf)) > sizeof(addrbuf))
 		return NULL;
 
-	return kstrdup(addrbuf, GFP_KERNEL);
+	return kstrdup(addrbuf, gfp_flags);
 }
-EXPORT_SYMBOL_GPL(rpc_sockaddr2uaddr);
 
 /**
  * rpc_uaddr2sockaddr - convert a universal address to a socket address.
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index d4132754cbe1..afb56553dfe7 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -603,26 +603,6 @@ out:
 	return err;
 }
 
-static ssize_t
-gss_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg,
-		char __user *dst, size_t buflen)
-{
-	char *data = (char *)msg->data + msg->copied;
-	size_t mlen = min(msg->len, buflen);
-	unsigned long left;
-
-	left = copy_to_user(dst, data, mlen);
-	if (left == mlen) {
-		msg->errno = -EFAULT;
-		return -EFAULT;
-	}
-
-	mlen -= left;
-	msg->copied += mlen;
-	msg->errno = 0;
-	return mlen;
-}
-
 #define MSG_BUF_MAXSIZE 1024
 
 static ssize_t
@@ -1590,7 +1570,7 @@ static const struct rpc_credops gss_nullops = {
 };
 
 static const struct rpc_pipe_ops gss_upcall_ops_v0 = {
-	.upcall		= gss_pipe_upcall,
+	.upcall		= rpc_pipe_generic_upcall,
 	.downcall	= gss_pipe_downcall,
 	.destroy_msg	= gss_pipe_destroy_msg,
 	.open_pipe	= gss_pipe_open_v0,
@@ -1598,7 +1578,7 @@ static const struct rpc_pipe_ops gss_upcall_ops_v0 = {
 };
 
 static const struct rpc_pipe_ops gss_upcall_ops_v1 = {
-	.upcall		= gss_pipe_upcall,
+	.upcall		= rpc_pipe_generic_upcall,
 	.downcall	= gss_pipe_downcall,
 	.destroy_msg	= gss_pipe_destroy_msg,
 	.open_pipe	= gss_pipe_open_v1,
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index c5347d29cfb7..f0268ea7e711 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -850,7 +850,9 @@ rpc_restart_call_prepare(struct rpc_task *task)
 {
 	if (RPC_ASSASSINATED(task))
 		return 0;
-	task->tk_action = rpc_prepare_task;
+	task->tk_action = call_start;
+	if (task->tk_ops->rpc_call_prepare != NULL)
+		task->tk_action = rpc_prepare_task;
 	return 1;
 }
 EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 3156ba864519..bfddd68b31d3 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -77,6 +77,26 @@ rpc_timeout_upcall_queue(struct work_struct *work)
 	rpc_purge_list(rpci, &free_list, destroy_msg, -ETIMEDOUT);
 }
 
+ssize_t rpc_pipe_generic_upcall(struct file *filp, struct rpc_pipe_msg *msg,
+				char __user *dst, size_t buflen)
+{
+	char *data = (char *)msg->data + msg->copied;
+	size_t mlen = min(msg->len - msg->copied, buflen);
+	unsigned long left;
+
+	left = copy_to_user(dst, data, mlen);
+	if (left == mlen) {
+		msg->errno = -EFAULT;
+		return -EFAULT;
+	}
+
+	mlen -= left;
+	msg->copied += mlen;
+	msg->errno = 0;
+	return mlen;
+}
+EXPORT_SYMBOL_GPL(rpc_pipe_generic_upcall);
+
 /**
  * rpc_queue_upcall - queue an upcall message to userspace
  * @inode: inode of upcall pipe on which to queue given message
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index e45d2fbbe5a8..f588b852d41c 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -410,7 +410,7 @@ static int rpcb_register_inet4(const struct sockaddr *sap,
 	unsigned short port = ntohs(sin->sin_port);
 	int result;
 
-	map->r_addr = rpc_sockaddr2uaddr(sap);
+	map->r_addr = rpc_sockaddr2uaddr(sap, GFP_KERNEL);
 
 	dprintk("RPC:       %sregistering [%u, %u, %s, '%s'] with "
 		"local rpcbind\n", (port ? "" : "un"),
@@ -437,7 +437,7 @@ static int rpcb_register_inet6(const struct sockaddr *sap,
 	unsigned short port = ntohs(sin6->sin6_port);
 	int result;
 
-	map->r_addr = rpc_sockaddr2uaddr(sap);
+	map->r_addr = rpc_sockaddr2uaddr(sap, GFP_KERNEL);
 
 	dprintk("RPC:       %sregistering [%u, %u, %s, '%s'] with "
 		"local rpcbind\n", (port ? "" : "un"),
@@ -686,7 +686,7 @@ void rpcb_getport_async(struct rpc_task *task)
 	case RPCBVERS_4:
 	case RPCBVERS_3:
 		map->r_netid = rpc_peeraddr2str(clnt, RPC_DISPLAY_NETID);
-		map->r_addr = rpc_sockaddr2uaddr(sap);
+		map->r_addr = rpc_sockaddr2uaddr(sap, GFP_ATOMIC);
 		map->r_owner = "";
 		break;
 	case RPCBVERS_2: