Merge branch 'nfs-for-2.6.34' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'nfs-for-2.6.34' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (44 commits)
  NFS: Remove requirement for inode->i_mutex from nfs_invalidate_mapping
  NFS: Clean up nfs_sync_mapping
  NFS: Simplify nfs_wb_page()
  NFS: Replace __nfs_write_mapping with sync_inode()
  NFS: Simplify nfs_wb_page_cancel()
  NFS: Ensure inode is always marked I_DIRTY_DATASYNC, if it has unstable pages
  NFS: Run COMMIT as an asynchronous RPC call when wbc->for_background is set
  NFS: Reduce the number of unnecessary COMMIT calls
  NFS: Add a count of the number of unstable writes carried by an inode
  NFS: Cleanup - move nfs_write_inode() into fs/nfs/write.c
  nfs41 fix NFS4ERR_CLID_INUSE for exchange id
  NFS: Fix an allocation-under-spinlock bug
  SUNRPC: Handle EINVAL error returns from the TCP connect operation
  NFSv4.1: Various fixes to the sequence flag error handling
  nfs4: renewd renew operations should take/put a client reference
  nfs41: renewd sequence operations should take/put client reference
  nfs: prevent backlogging of renewd requests
  nfs: kill renewd before clearing client minor version
  NFS: Make close(2) asynchronous when closing NFS O_DIRECT files
  NFS: Improve NFS iostat byte count accuracy for writes
  ...

4 files changed, 24 insertions, 8 deletions

diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index 6dcdd251781..f845d9d72f7 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -71,8 +71,9 @@ static size_t rpc_ntop6(const struct sockaddr *sap,
 	if (unlikely(len == 0))
 		return len;
 
-	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) &&
-	    !(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_SITELOCAL))
+	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))
+		return len;
+	if (sin6->sin6_scope_id == 0)
 		return len;
 
 	rc = snprintf(scopebuf, sizeof(scopebuf), "%c%u",
@@ -165,8 +166,7 @@ static int rpc_parse_scope_id(const char *buf, const size_t buflen,
 	if (*delim != IPV6_SCOPE_DELIMITER)
 		return 0;
 
-	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) &&
-	    !(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_SITELOCAL))
+	if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL))
 		return 0;
 
 	len = (buf + buflen) - delim - 1;
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index f7a7f8380e3..0cfccc2a029 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -206,8 +206,14 @@ gss_fill_context(const void *p, const void *end, struct gss_cl_ctx *ctx, struct
 	ctx->gc_win = window_size;
 	/* gssd signals an error by passing ctx->gc_win = 0: */
 	if (ctx->gc_win == 0) {
-		/* in which case, p points to  an error code which we ignore */
-		p = ERR_PTR(-EACCES);
+		/*
+		 * in which case, p points to an error code. Anything other
+		 * than -EKEYEXPIRED gets converted to -EACCES.
+		 */
+		p = simple_get_bytes(p, end, &ret, sizeof(ret));
+		if (!IS_ERR(p))
+			p = (ret == -EKEYEXPIRED) ? ERR_PTR(-EKEYEXPIRED) :
+						    ERR_PTR(-EACCES);
 		goto err;
 	}
 	/* copy the opaque wire context */
@@ -646,6 +652,7 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
 		err = PTR_ERR(p);
 		switch (err) {
 		case -EACCES:
+		case -EKEYEXPIRED:
 			gss_msg->msg.errno = err;
 			err = mlen;
 			break;
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 538ca433a56..6dcf8c9c784 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -506,6 +506,10 @@ svc_init_buffer(struct svc_rqst *rqstp, unsigned int size)
 {
 	unsigned int pages, arghi;
 
+	/* bc_xprt uses fore channel allocated buffers */
+	if (svc_is_backchannel(rqstp))
+		return 1;
+
 	pages = size / PAGE_SIZE + 1; /* extra page as we hold both request and reply.
 				       * We assume one is at most one page
 				       */
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 3d739e5d15d..712412982ce 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1912,6 +1912,11 @@ static void xs_tcp_setup_socket(struct rpc_xprt *xprt,
 	case -EALREADY:
 		xprt_clear_connecting(xprt);
 		return;
+	case -EINVAL:
+		/* Happens, for instance, if the user specified a link
+		 * local IPv6 address without a scope-id.
+		 */
+		goto out;
 	}
 out_eagain:
 	status = -EAGAIN;
@@ -2100,7 +2105,7 @@ static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
  * we allocate pages instead doing a kmalloc like rpc_malloc is because we want
  * to use the server side send routines.
  */
-void *bc_malloc(struct rpc_task *task, size_t size)
+static void *bc_malloc(struct rpc_task *task, size_t size)
 {
 	struct page *page;
 	struct rpc_buffer *buf;
@@ -2120,7 +2125,7 @@ void *bc_malloc(struct rpc_task *task, size_t size)
 /*
  * Free the space allocated in the bc_alloc routine
  */
-void bc_free(void *buffer)
+static void bc_free(void *buffer)
 {
 	struct rpc_buffer *buf;