Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

* git://git.linux-nfs.org/pub/linux/nfs-2.6:
  NFS: Clean up new multi-segment direct I/O changes
  NFS: Ensure we return zero if applications attempt to write zero bytes
  NFS: Support multiple segment iovecs in the NFS direct I/O path
  NFS: Introduce iovec I/O helpers to fs/nfs/direct.c
  SUNRPC: Add missing "space" to net/sunrpc/auth_gss.c
  SUNRPC: make sunrpc/xprtsock.c:xs_setup_{udp,tcp}() static
  NFS: fs/nfs/dir.c should #include "internal.h"
  NFS: make nfs_wb_page_priority() static
  NFS: mount failure causes bad page state
  SUNRPC: remove NFS/RDMA client's binary sysctls
  kernel BUG at fs/nfs/namespace.c:108! - can be triggered by bad server
  sunrpc: rpc_pipe_poll may miss available data in some cases
  sunrpc: return error if unsupported enctype or cksumtype is encountered
  sunrpc: gss_pipe_downcall(), don't assume all errors are transient
  NFS: Fix the ustat() regression

6 files changed, 17 insertions, 12 deletions

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 53995af9ca4..a6e57d1c2eb 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -540,7 +540,7 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
         p = gss_fill_context(p, end, ctx, gss_msg->auth->mech);
         if (IS_ERR(p)) {
                 err = PTR_ERR(p);
-                gss_msg->msg.errno = (err == -EACCES) ? -EACCES : -EAGAIN;
+                gss_msg->msg.errno = (err == -EAGAIN) ? -EAGAIN : -EACCES;
                 goto err_release_msg;
         }
         gss_msg->ctx = gss_get_ctx(ctx);
@@ -967,7 +967,7 @@ gss_validate(struct rpc_task *task, __be32 *p)
         if (maj_stat == GSS_S_CONTEXT_EXPIRED)
                 clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags);
         if (maj_stat) {
-                dprintk("RPC: %5u gss_validate: gss_verify_mic returned"
+                dprintk("RPC: %5u gss_validate: gss_verify_mic returned "
                                 "error 0x%08x\n", task->tk_pid, maj_stat);
                 goto out_bad;
         }
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 9843eacef11..60c3dba545d 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -147,13 +147,17 @@ gss_import_sec_context_kerberos(const void *p,
         p = simple_get_bytes(p, end, &tmp, sizeof(tmp));
         if (IS_ERR(p))
                 goto out_err_free_ctx;
-        if (tmp != SGN_ALG_DES_MAC_MD5)
+        if (tmp != SGN_ALG_DES_MAC_MD5) {
+                p = ERR_PTR(-ENOSYS);
                 goto out_err_free_ctx;
+        }
         p = simple_get_bytes(p, end, &tmp, sizeof(tmp));
         if (IS_ERR(p))
                 goto out_err_free_ctx;
-        if (tmp != SEAL_ALG_DES)
+        if (tmp != SEAL_ALG_DES) {
+                p = ERR_PTR(-ENOSYS);
                 goto out_err_free_ctx;
+        }
         p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));
         if (IS_ERR(p))
                 goto out_err_free_ctx;
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index 1c6eda5077c..dedcbd6108f 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -83,6 +83,7 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
         u32                     seq_send;
 
         dprintk("RPC:       gss_krb5_seal\n");
+        BUG_ON(ctx == NULL);
 
         now = get_seconds();
 
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 18f0a8dcc09..c59f3ca2b41 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -280,7 +280,7 @@ rpc_pipe_poll(struct file *filp, struct poll_table_struct *wait)
         mask = POLLOUT | POLLWRNORM;
         if (rpci->ops == NULL)
                 mask |= POLLERR | POLLHUP;
-        if (!list_empty(&rpci->pipe))
+        if (filp->private_data || !list_empty(&rpci->pipe))
                 mask |= POLLIN | POLLRDNORM;
         return mask;
 }
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 1afeb3eb8e4..6f2112dd9f7 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -89,7 +89,7 @@ static struct ctl_table_header *sunrpc_table_header;
 
 static ctl_table xr_tunables_table[] = {
         {
-                .ctl_name       = CTL_SLOTTABLE_RDMA,
+                .ctl_name       = CTL_UNNUMBERED,
                 .procname       = "rdma_slot_table_entries",
                 .data           = &xprt_rdma_slot_table_entries,
                 .maxlen         = sizeof(unsigned int),
@@ -100,7 +100,7 @@ static ctl_table xr_tunables_table[] = {
                 .extra2         = &max_slot_table_size
         },
         {
-                .ctl_name       = CTL_RDMA_MAXINLINEREAD,
+                .ctl_name       = CTL_UNNUMBERED,
                 .procname       = "rdma_max_inline_read",
                 .data           = &xprt_rdma_max_inline_read,
                 .maxlen         = sizeof(unsigned int),
@@ -109,7 +109,7 @@ static ctl_table xr_tunables_table[] = {
                 .strategy       = &sysctl_intvec,
         },
         {
-                .ctl_name       = CTL_RDMA_MAXINLINEWRITE,
+                .ctl_name       = CTL_UNNUMBERED,
                 .procname       = "rdma_max_inline_write",
                 .data           = &xprt_rdma_max_inline_write,
                 .maxlen         = sizeof(unsigned int),
@@ -118,7 +118,7 @@ static ctl_table xr_tunables_table[] = {
                 .strategy       = &sysctl_intvec,
         },
         {
-                .ctl_name       = CTL_RDMA_WRITEPADDING,
+                .ctl_name       = CTL_UNNUMBERED,
                 .procname       = "rdma_inline_write_padding",
                 .data           = &xprt_rdma_inline_write_padding,
                 .maxlen         = sizeof(unsigned int),
@@ -129,7 +129,7 @@ static ctl_table xr_tunables_table[] = {
                 .extra2         = &max_padding,
         },
         {
-                .ctl_name       = CTL_RDMA_MEMREG,
+                .ctl_name       = CTL_UNNUMBERED,
                 .procname       = "rdma_memreg_strategy",
                 .data           = &xprt_rdma_memreg_strategy,
                 .maxlen         = sizeof(unsigned int),
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 02298f529da..2f630a512ab 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1828,7 +1828,7 @@ static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args,
  * @args: rpc transport creation arguments
  *
  */
-struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
+static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
 {
         struct sockaddr *addr = args->dstaddr;
         struct rpc_xprt *xprt;
@@ -1894,7 +1894,7 @@ struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
  * @args: rpc transport creation arguments
  *
  */
-struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
+static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
 {
         struct sockaddr *addr = args->dstaddr;
         struct rpc_xprt *xprt;