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authorStanislav Kinsbursky <skinsbursky@parallels.com>2012-01-10 16:12:46 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-01-31 18:20:26 -0500
commite50a7a1a42335243c94eeea4a8d23413cb02370d (patch)
tree070a312c2adfce384b64083b8ae204b4d47ffba9 /fs
parentad6b134008f4e765dd19976552b929273ae523bd (diff)
NFS: make NFS client allocated per network namespace context
This patch adds new net variable to nfs_client structure. This variable is set on NFS client creation and cheched during matching NFS client search. Initially current->nsproxy->net_ns is used as network namespace owner for new NFS client to create. This network namespace pointer is set during mount options parsing and thus can be passed from user-spave utils in future if will be necessary. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/client.c16
-rw-r--r--fs/nfs/internal.h1
-rw-r--r--fs/nfs/super.c3
3 files changed, 17 insertions, 3 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 31778f74357..ca016fe4460 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -135,6 +135,7 @@ struct nfs_client_initdata {
const struct nfs_rpc_ops *rpc_ops;
int proto;
u32 minorversion;
+ struct net *net;
};
/*
@@ -189,6 +190,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
if (!IS_ERR(cred))
clp->cl_machine_cred = cred;
nfs_fscache_get_client_cookie(clp);
+ clp->net = cl_init->net;
return clp;
@@ -481,6 +483,9 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat
/* Match the full socket address */
if (!nfs_sockaddr_cmp(sap, clap))
continue;
+ /* Match network namespace */
+ if (clp->net != data->net)
+ continue;
atomic_inc(&clp->cl_count);
return clp;
@@ -831,6 +836,7 @@ static int nfs_init_server(struct nfs_server *server,
.addrlen = data->nfs_server.addrlen,
.rpc_ops = &nfs_v2_clientops,
.proto = data->nfs_server.protocol,
+ .net = data->net,
};
struct rpc_timeout timeparms;
struct nfs_client *clp;
@@ -1393,7 +1399,7 @@ static int nfs4_set_client(struct nfs_server *server,
const char *ip_addr,
rpc_authflavor_t authflavour,
int proto, const struct rpc_timeout *timeparms,
- u32 minorversion)
+ u32 minorversion, struct net *net)
{
struct nfs_client_initdata cl_init = {
.hostname = hostname,
@@ -1402,6 +1408,7 @@ static int nfs4_set_client(struct nfs_server *server,
.rpc_ops = &nfs_v4_clientops,
.proto = proto,
.minorversion = minorversion,
+ .net = net,
};
struct nfs_client *clp;
int error;
@@ -1453,6 +1460,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
.rpc_ops = &nfs_v4_clientops,
.proto = ds_proto,
.minorversion = mds_clp->cl_minorversion,
+ .net = mds_clp->net,
};
struct rpc_timeout ds_timeout = {
.to_initval = 15 * HZ,
@@ -1580,7 +1588,8 @@ static int nfs4_init_server(struct nfs_server *server,
data->auth_flavors[0],
data->nfs_server.protocol,
&timeparms,
- data->minorversion);
+ data->minorversion,
+ data->net);
if (error < 0)
goto error;
@@ -1677,7 +1686,8 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
data->authflavor,
parent_server->client->cl_xprt->prot,
parent_server->client->cl_timeout,
- parent_client->cl_mvops->minor_version);
+ parent_client->cl_mvops->minor_version,
+ parent_client->net);
if (error < 0)
goto error;
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 8102db9b926..02fb2001a28 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -123,6 +123,7 @@ struct nfs_parsed_mount_data {
} nfs_server;
struct security_mnt_opts lsm_opts;
+ struct net *net;
};
/* mount_clnt.c */
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 3dfa4f112c0..73aa75649bf 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -52,6 +52,7 @@
#include <linux/nfs_xdr.h>
#include <linux/magic.h>
#include <linux/parser.h>
+#include <linux/nsproxy.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -1107,6 +1108,8 @@ static int nfs_parse_mount_options(char *raw,
free_secdata(secdata);
+ mnt->net = current->nsproxy->net_ns;
+
while ((p = strsep(&raw, ",")) != NULL) {
substring_t args[MAX_OPT_ARGS];
unsigned long option;