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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-20 02:12:27 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-20 02:22:15 +0400
commite571cbf1a4f8d8b6cfd4898df718dae84c75a8e1 (patch)
tree0fc9da9692a1e63cff03053fc87cc807fab5e266 /net/sunrpc
parent96c61cbd0f30496bfa57ed80f7131a57aea3e4de (diff)
downloadlinux-e571cbf1a4f8d8b6cfd4898df718dae84c75a8e1.tar.xz
NFS: Add a dns resolver for use with NFSv4 referrals and migration
The NFSv4 and NFSv4.1 protocols both allow for the redirection of a client from one server to another in order to support filesystem migration and replication. For full protocol support, we need to add the ability to convert a DNS host name into an IP address that we can feed to the RPC client. We'll reuse the sunrpc cache, now that it has been converted to work with rpc_pipefs. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/rpc_pipe.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 3fdacaf5c708..7f676bdf70d3 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -416,11 +416,13 @@ struct vfsmount *rpc_get_mount(void)
return ERR_PTR(err);
return rpc_mount;
}
+EXPORT_SYMBOL_GPL(rpc_get_mount);
void rpc_put_mount(void)
{
simple_release_fs(&rpc_mount, &rpc_mount_count);
}
+EXPORT_SYMBOL_GPL(rpc_put_mount);
static int rpc_delete_dentry(struct dentry *dentry)
{
@@ -946,6 +948,7 @@ enum {
RPCAUTH_portmap,
RPCAUTH_statd,
RPCAUTH_nfsd4_cb,
+ RPCAUTH_cache,
RPCAUTH_RootEOF
};
@@ -974,6 +977,10 @@ static const struct rpc_filelist files[] = {
.name = "nfsd4_cb",
.mode = S_IFDIR | S_IRUGO | S_IXUGO,
},
+ [RPCAUTH_cache] = {
+ .name = "cache",
+ .mode = S_IFDIR | S_IRUGO | S_IXUGO,
+ },
};
static int