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authorLinus Torvalds <torvalds@linux-foundation.org>2010-06-27 09:04:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-06-27 09:04:02 -0700
commite7865c234fff2db474f21a62b2f906a70317c972 (patch)
treeda15a1c215b69dda6279c61106e2a5981e7e1d72
parentbf2937695fe2330bfd8933a2310e7bdd2581dc2e (diff)
parentd3f6baaa34c54040b3ef30950e59b54ac0624b21 (diff)
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Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFSv4: Fix an embarassing typo in encode_attrs() NFSv4: Ensure that /proc/self/mountinfo displays the minor version number NFSv4.1: Ensure that we initialise the session when following a referral SUNRPC: Fix a re-entrancy bug in xs_tcp_read_calldir() nfs4 use mandatory attribute file type in nfs4_get_root
-rw-r--r--fs/nfs/client.c122
-rw-r--r--fs/nfs/getroot.c2
-rw-r--r--fs/nfs/nfs4xdr.c4
-rw-r--r--fs/nfs/super.c22
-rw-r--r--net/sunrpc/xprtsock.c38
5 files changed, 94 insertions, 94 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 7ec9b34a59f..d25b5257b7a 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1286,6 +1286,55 @@ static void nfs4_session_set_rwsize(struct nfs_server *server)
#endif /* CONFIG_NFS_V4_1 */
}
+static int nfs4_server_common_setup(struct nfs_server *server,
+ struct nfs_fh *mntfh)
+{
+ struct nfs_fattr *fattr;
+ int error;
+
+ BUG_ON(!server->nfs_client);
+ BUG_ON(!server->nfs_client->rpc_ops);
+ BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
+
+ fattr = nfs_alloc_fattr();
+ if (fattr == NULL)
+ return -ENOMEM;
+
+ /* We must ensure the session is initialised first */
+ error = nfs4_init_session(server);
+ if (error < 0)
+ goto out;
+
+ /* Probe the root fh to retrieve its FSID and filehandle */
+ error = nfs4_get_rootfh(server, mntfh);
+ if (error < 0)
+ goto out;
+
+ dprintk("Server FSID: %llx:%llx\n",
+ (unsigned long long) server->fsid.major,
+ (unsigned long long) server->fsid.minor);
+ dprintk("Mount FH: %d\n", mntfh->size);
+
+ nfs4_session_set_rwsize(server);
+
+ error = nfs_probe_fsinfo(server, mntfh, fattr);
+ if (error < 0)
+ goto out;
+
+ if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+ server->namelen = NFS4_MAXNAMLEN;
+
+ spin_lock(&nfs_client_lock);
+ list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
+ list_add_tail(&server->master_link, &nfs_volume_list);
+ spin_unlock(&nfs_client_lock);
+
+ server->mount_time = jiffies;
+out:
+ nfs_free_fattr(fattr);
+ return error;
+}
+
/*
* Create a version 4 volume record
*/
@@ -1346,7 +1395,6 @@ error:
struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
struct nfs_fh *mntfh)
{
- struct nfs_fattr *fattr;
struct nfs_server *server;
int error;
@@ -1356,55 +1404,19 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
if (!server)
return ERR_PTR(-ENOMEM);
- error = -ENOMEM;
- fattr = nfs_alloc_fattr();
- if (fattr == NULL)
- goto error;
-
/* set up the general RPC client */
error = nfs4_init_server(server, data);
if (error < 0)
goto error;
- BUG_ON(!server->nfs_client);
- BUG_ON(!server->nfs_client->rpc_ops);
- BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
- error = nfs4_init_session(server);
- if (error < 0)
- goto error;
-
- /* Probe the root fh to retrieve its FSID */
- error = nfs4_get_rootfh(server, mntfh);
+ error = nfs4_server_common_setup(server, mntfh);
if (error < 0)
goto error;
- dprintk("Server FSID: %llx:%llx\n",
- (unsigned long long) server->fsid.major,
- (unsigned long long) server->fsid.minor);
- dprintk("Mount FH: %d\n", mntfh->size);
-
- nfs4_session_set_rwsize(server);
-
- error = nfs_probe_fsinfo(server, mntfh, fattr);
- if (error < 0)
- goto error;
-
- if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
- server->namelen = NFS4_MAXNAMLEN;
-
- spin_lock(&nfs_client_lock);
- list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
- list_add_tail(&server->master_link, &nfs_volume_list);
- spin_unlock(&nfs_client_lock);
-
- server->mount_time = jiffies;
dprintk("<-- nfs4_create_server() = %p\n", server);
- nfs_free_fattr(fattr);
return server;
error:
- nfs_free_fattr(fattr);
nfs_free_server(server);
dprintk("<-- nfs4_create_server() = error %d\n", error);
return ERR_PTR(error);
@@ -1418,7 +1430,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
{
struct nfs_client *parent_client;
struct nfs_server *server, *parent_server;
- struct nfs_fattr *fattr;
int error;
dprintk("--> nfs4_create_referral_server()\n");
@@ -1427,11 +1438,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
if (!server)
return ERR_PTR(-ENOMEM);
- error = -ENOMEM;
- fattr = nfs_alloc_fattr();
- if (fattr == NULL)
- goto error;
-
parent_server = NFS_SB(data->sb);
parent_client = parent_server->nfs_client;
@@ -1456,40 +1462,14 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
if (error < 0)
goto error;
- BUG_ON(!server->nfs_client);
- BUG_ON(!server->nfs_client->rpc_ops);
- BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
- /* Probe the root fh to retrieve its FSID and filehandle */
- error = nfs4_get_rootfh(server, mntfh);
- if (error < 0)
- goto error;
-
- /* probe the filesystem info for this server filesystem */
- error = nfs_probe_fsinfo(server, mntfh, fattr);
+ error = nfs4_server_common_setup(server, mntfh);
if (error < 0)
goto error;
- if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
- server->namelen = NFS4_MAXNAMLEN;
-
- dprintk("Referral FSID: %llx:%llx\n",
- (unsigned long long) server->fsid.major,
- (unsigned long long) server->fsid.minor);
-
- spin_lock(&nfs_client_lock);
- list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
- list_add_tail(&server->master_link, &nfs_volume_list);
- spin_unlock(&nfs_client_lock);
-
- server->mount_time = jiffies;
-
- nfs_free_fattr(fattr);
dprintk("<-- nfs_create_referral_server() = %p\n", server);
return server;
error:
- nfs_free_fattr(fattr);
nfs_free_server(server);
dprintk("<-- nfs4_create_referral_server() = error %d\n", error);
return ERR_PTR(error);
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index 7428f7d6273..a70e446e160 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -146,7 +146,7 @@ int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh)
goto out;
}
- if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_MODE)
+ if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_TYPE)
|| !S_ISDIR(fsinfo.fattr->mode)) {
printk(KERN_ERR "nfs4_get_rootfh:"
" getroot encountered non-directory\n");
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6bdef28efa3..65c8dae4b26 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -862,8 +862,8 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
*p++ = cpu_to_be32(0);
- *p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
- *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
+ *p++ = cpu_to_be32(iap->ia_atime.tv_sec);
+ *p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
}
else if (iap->ia_valid & ATTR_ATIME) {
bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 04214fc5c30..f9df16de4a5 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -570,6 +570,22 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
nfs_show_mountd_netid(m, nfss, showdefaults);
}
+#ifdef CONFIG_NFS_V4
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+ int showdefaults)
+{
+ struct nfs_client *clp = nfss->nfs_client;
+
+ seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
+ seq_printf(m, ",minorversion=%u", clp->cl_minorversion);
+}
+#else
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+ int showdefaults)
+{
+}
+#endif
+
/*
* Describe the mount options in force on this server representation
*/
@@ -631,11 +647,9 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
if (version != 4)
nfs_show_mountd_options(m, nfss, showdefaults);
+ else
+ nfs_show_nfsv4_options(m, nfss, showdefaults);
-#ifdef CONFIG_NFS_V4
- if (clp->rpc_ops->version == 4)
- seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
-#endif
if (nfss->options & NFS_OPTION_FSCACHE)
seq_printf(m, ",fsc");
}
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 2a9675136c6..7ca65c7005e 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -210,7 +210,8 @@ struct sock_xprt {
* State of TCP reply receive
*/
__be32 tcp_fraghdr,
- tcp_xid;
+ tcp_xid,
+ tcp_calldir;
u32 tcp_offset,
tcp_reclen;
@@ -927,7 +928,7 @@ static inline void xs_tcp_read_calldir(struct sock_xprt *transport,
{
size_t len, used;
u32 offset;
- __be32 calldir;
+ char *p;
/*
* We want transport->tcp_offset to be 8 at the end of this routine
@@ -936,26 +937,33 @@ static inline void xs_tcp_read_calldir(struct sock_xprt *transport,
* transport->tcp_offset is 4 (after having already read the xid).
*/
offset = transport->tcp_offset - sizeof(transport->tcp_xid);
- len = sizeof(calldir) - offset;
+ len = sizeof(transport->tcp_calldir) - offset;
dprintk("RPC: reading CALL/REPLY flag (%Zu bytes)\n", len);
- used = xdr_skb_read_bits(desc, &calldir, len);
+ p = ((char *) &transport->tcp_calldir) + offset;
+ used = xdr_skb_read_bits(desc, p, len);
transport->tcp_offset += used;
if (used != len)
return;
transport->tcp_flags &= ~TCP_RCV_READ_CALLDIR;
- transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
- transport->tcp_flags |= TCP_RCV_COPY_DATA;
/*
* We don't yet have the XDR buffer, so we will write the calldir
* out after we get the buffer from the 'struct rpc_rqst'
*/
- if (ntohl(calldir) == RPC_REPLY)
+ switch (ntohl(transport->tcp_calldir)) {
+ case RPC_REPLY:
+ transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
+ transport->tcp_flags |= TCP_RCV_COPY_DATA;
transport->tcp_flags |= TCP_RPC_REPLY;
- else
+ break;
+ case RPC_CALL:
+ transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
+ transport->tcp_flags |= TCP_RCV_COPY_DATA;
transport->tcp_flags &= ~TCP_RPC_REPLY;
- dprintk("RPC: reading %s CALL/REPLY flag %08x\n",
- (transport->tcp_flags & TCP_RPC_REPLY) ?
- "reply for" : "request with", calldir);
+ break;
+ default:
+ dprintk("RPC: invalid request message type\n");
+ xprt_force_disconnect(&transport->xprt);
+ }
xs_tcp_check_fraghdr(transport);
}
@@ -975,12 +983,10 @@ static inline void xs_tcp_read_common(struct rpc_xprt *xprt,
/*
* Save the RPC direction in the XDR buffer
*/
- __be32 calldir = transport->tcp_flags & TCP_RPC_REPLY ?
- htonl(RPC_REPLY) : 0;
-
memcpy(rcvbuf->head[0].iov_base + transport->tcp_copied,
- &calldir, sizeof(calldir));
- transport->tcp_copied += sizeof(calldir);
+ &transport->tcp_calldir,
+ sizeof(transport->tcp_calldir));
+ transport->tcp_copied += sizeof(transport->tcp_calldir);
transport->tcp_flags &= ~TCP_RCV_COPY_CALLDIR;
}