#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/metrics.h>
#include <linux/sunrpc/xprtsock.h>
+#include <linux/sunrpc/xprtrdma.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_mount.h>
#include <linux/nfs4_mount.h>
Opt_ac, Opt_noac,
Opt_lock, Opt_nolock,
Opt_v2, Opt_v3,
- Opt_udp, Opt_tcp,
+ Opt_udp, Opt_tcp, Opt_rdma,
Opt_acl, Opt_noacl,
Opt_rdirplus, Opt_nordirplus,
Opt_sharecache, Opt_nosharecache,
Opt_actimeo,
Opt_namelen,
Opt_mountport,
- Opt_mountprog, Opt_mountvers,
- Opt_nfsprog, Opt_nfsvers,
+ Opt_mountvers,
+ Opt_nfsvers,
/* Mount options that take string arguments */
Opt_sec, Opt_proto, Opt_mountproto,
{ Opt_v3, "v3" },
{ Opt_udp, "udp" },
{ Opt_tcp, "tcp" },
+ { Opt_rdma, "rdma" },
{ Opt_acl, "acl" },
{ Opt_noacl, "noacl" },
{ Opt_rdirplus, "rdirplus" },
{ Opt_userspace, "retry=%u" },
{ Opt_namelen, "namlen=%u" },
{ Opt_mountport, "mountport=%u" },
- { Opt_mountprog, "mountprog=%u" },
{ Opt_mountvers, "mountvers=%u" },
- { Opt_nfsprog, "nfsprog=%u" },
{ Opt_nfsvers, "nfsvers=%u" },
{ Opt_nfsvers, "vers=%u" },
};
enum {
- Opt_xprt_udp, Opt_xprt_tcp,
+ Opt_xprt_udp, Opt_xprt_tcp, Opt_xprt_rdma,
Opt_xprt_err
};
static match_table_t nfs_xprt_protocol_tokens = {
{ Opt_xprt_udp, "udp" },
{ Opt_xprt_tcp, "tcp" },
+ { Opt_xprt_rdma, "rdma" },
{ Opt_xprt_err, NULL }
};
static int nfs_xdev_get_sb(struct file_system_type *fs_type,
int flags, const char *dev_name, void *raw_data, struct vfsmount *mnt);
static void nfs_kill_super(struct super_block *);
+static void nfs_put_super(struct super_block *);
static struct file_system_type nfs_fs_type = {
.owner = THIS_MODULE,
.alloc_inode = nfs_alloc_inode,
.destroy_inode = nfs_destroy_inode,
.write_inode = nfs_write_inode,
+ .put_super = nfs_put_super,
.statfs = nfs_statfs,
.clear_inode = nfs_clear_inode,
.umount_begin = nfs_umount_begin,
unregister_filesystem(&nfs_fs_type);
}
+void nfs_sb_active(struct nfs_server *server)
+{
+ atomic_inc(&server->active);
+}
+
+void nfs_sb_deactive(struct nfs_server *server)
+{
+ if (atomic_dec_and_test(&server->active))
+ wake_up(&server->active_wq);
+}
+
+static void nfs_put_super(struct super_block *sb)
+{
+ struct nfs_server *server = NFS_SB(sb);
+ /*
+ * Make sure there are no outstanding ops to this server.
+ * If so, wait for them to finish before allowing the
+ * unmount to continue.
+ */
+ wait_event(server->active_wq, atomic_read(&server->active) == 0);
+}
+
/*
* Deliver file system statistics to userspace
*/
const char *nostr;
} nfs_info[] = {
{ NFS_MOUNT_SOFT, ",soft", ",hard" },
- { NFS_MOUNT_INTR, ",intr", "" },
+ { NFS_MOUNT_INTR, ",intr", ",nointr" },
{ NFS_MOUNT_NOCTO, ",nocto", "" },
{ NFS_MOUNT_NOAC, ",noac", "" },
{ NFS_MOUNT_NONLM, ",nolock", "" },
nfs_show_mount_options(m, nfss, 0);
- seq_printf(m, ",addr="NIPQUAD_FMT,
- NIPQUAD(nfss->nfs_client->cl_addr.sin_addr));
+ seq_printf(m, ",addr=%s",
+ rpc_peeraddr2str(nfss->nfs_client->cl_rpcclient,
+ RPC_DISPLAY_ADDR));
return 0;
}
seq_printf(m, ",namelen=%d", nfss->namelen);
#ifdef CONFIG_NFS_V4
- if (nfss->nfs_client->cl_nfsversion == 4) {
+ if (nfss->nfs_client->rpc_ops->version == 4) {
seq_printf(m, "\n\tnfsv4:\t");
seq_printf(m, "bm0=0x%x", nfss->attr_bitmask[0]);
seq_printf(m, ",bm1=0x%x", nfss->attr_bitmask[1]);
mnt->timeo = 600;
mnt->retrans = 2;
break;
+ case Opt_rdma:
+ mnt->flags |= NFS_MOUNT_TCP; /* for side protocols */
+ mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;
+ mnt->timeo = 600;
+ mnt->retrans = 2;
+ break;
case Opt_acl:
mnt->flags &= ~NFS_MOUNT_NOACL;
break;
return 0;
mnt->mount_server.port = option;
break;
- case Opt_mountprog:
- if (match_int(args, &option))
- return 0;
- if (option < 0)
- return 0;
- mnt->mount_server.program = option;
- break;
case Opt_mountvers:
if (match_int(args, &option))
return 0;
return 0;
mnt->mount_server.version = option;
break;
- case Opt_nfsprog:
- if (match_int(args, &option))
- return 0;
- if (option < 0)
- return 0;
- mnt->nfs_server.program = option;
- break;
case Opt_nfsvers:
if (match_int(args, &option))
return 0;
mnt->timeo = 600;
mnt->retrans = 2;
break;
+ case Opt_xprt_rdma:
+ /* vector side protocols to TCP */
+ mnt->flags |= NFS_MOUNT_TCP;
+ mnt->nfs_server.protocol = XPRT_TRANSPORT_RDMA;
+ mnt->timeo = 600;
+ mnt->retrans = 2;
+ break;
default:
goto out_unrec_xprt;
}
case Opt_xprt_tcp:
mnt->mount_server.protocol = XPRT_TRANSPORT_TCP;
break;
+ case Opt_xprt_rdma: /* not used for side protocols */
default:
goto out_unrec_xprt;
}
*
* + breaking back: trying proto=udp after proto=tcp, v2 after v3,
* mountproto=tcp after mountproto=udp, and so on
- *
- * XXX: as far as I can tell, changing the NFS program number is not
- * supported in the NFS client.
*/
static int nfs_validate_mount_data(void *options,
struct nfs_parsed_mount_data *args,
{
struct nfs_mount_data *data = (struct nfs_mount_data *)options;
+ memset(args, 0, sizeof(*args));
+
if (data == NULL)
goto out_no_data;
- memset(args, 0, sizeof(*args));
args->flags = (NFS_MOUNT_VER3 | NFS_MOUNT_TCP);
args->rsize = NFS_MAX_FILE_IO_SIZE;
args->wsize = NFS_MAX_FILE_IO_SIZE;
args->acdirmin = 30;
args->acdirmax = 60;
args->mount_server.protocol = XPRT_TRANSPORT_UDP;
- args->mount_server.program = NFS_MNT_PROGRAM;
args->nfs_server.protocol = XPRT_TRANSPORT_TCP;
- args->nfs_server.program = NFS_PROGRAM;
switch (data->version) {
case 1:
if (mntfh->size < sizeof(mntfh->data))
memset(mntfh->data + mntfh->size, 0,
sizeof(mntfh->data) - mntfh->size);
+
+ if (!nfs_verify_server_address((struct sockaddr *) &data->addr))
+ goto out_no_address;
+
/*
* Translate to nfs_parsed_mount_data, which nfs_fill_super
* can deal with.
if (nfs_parse_mount_options((char *)options, args) == 0)
return -EINVAL;
+ if (!nfs_verify_server_address((struct sockaddr *)
+ &args->nfs_server.address))
+ goto out_no_address;
+
c = strchr(dev_name, ':');
if (c == NULL)
return -EINVAL;
goto out_v3_not_compiled;
#endif /* !CONFIG_NFS_V3 */
- if (!nfs_verify_server_address((struct sockaddr *)
- &args->nfs_server.address))
- goto out_no_address;
-
return 0;
out_no_data:
error = PTR_ERR(mntroot);
goto error_splat_super;
}
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
+ dput(mntroot);
+ error = -ESTALE;
+ goto error_splat_super;
+ }
s->s_flags |= MS_ACTIVE;
mnt->mnt_sb = s;
struct nfs4_mount_data *data = (struct nfs4_mount_data *)options;
char *c;
+ memset(args, 0, sizeof(*args));
+
if (data == NULL)
goto out_no_data;
- memset(args, 0, sizeof(*args));
args->rsize = NFS_MAX_FILE_IO_SIZE;
args->wsize = NFS_MAX_FILE_IO_SIZE;
args->timeo = 600;
if (nfs_parse_mount_options((char *)options, args) == 0)
return -EINVAL;
+ if (args->nfs_server.address.sin_port == 0)
+ args->nfs_server.address.sin_port = htons(NFS_PORT);
if (!nfs_verify_server_address((struct sockaddr *)
&args->nfs_server.address))
return -EINVAL;
len = c - dev_name;
if (len > NFS4_MAXNAMLEN)
return -ENAMETOOLONG;
- args->nfs_server.hostname = kzalloc(len, GFP_KERNEL);
- if (args->nfs_server.hostname == NULL)
- return -ENOMEM;
- strncpy(args->nfs_server.hostname, dev_name, len - 1);
+ /* N.B. caller will free nfs_server.hostname in all cases */
+ args->nfs_server.hostname = kstrndup(dev_name, len, GFP_KERNEL);
c++; /* step over the ':' */
len = strlen(c);
if (len > NFS4_MAXPATHLEN)
return -ENAMETOOLONG;
- args->nfs_server.export_path = kzalloc(len + 1, GFP_KERNEL);
- if (args->nfs_server.export_path == NULL)
- return -ENOMEM;
- strncpy(args->nfs_server.export_path, c, len);
+ args->nfs_server.export_path = kstrndup(c, len, GFP_KERNEL);
- dprintk("MNTPATH: %s\n", args->nfs_server.export_path);
+ dprintk("NFS: MNTPATH: '%s'\n", args->nfs_server.export_path);
if (args->client_address == NULL)
goto out_no_client_address;
error = PTR_ERR(mntroot);
goto error_splat_super;
}
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
+ dput(mntroot);
+ error = -ESTALE;
+ goto error_splat_super;
+ }
s->s_flags |= MS_ACTIVE;
mnt->mnt_sb = s;
error = PTR_ERR(mntroot);
goto error_splat_super;
}
+ if (mntroot->d_inode->i_op != NFS_SB(s)->nfs_client->rpc_ops->dir_inode_ops) {
+ dput(mntroot);
+ error = -ESTALE;
+ goto error_splat_super;
+ }
s->s_flags |= MS_ACTIVE;
mnt->mnt_sb = s;
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