2008-01-31 20:01:21

by Chuck Lever III

[permalink] [raw]
Subject: [PATCH 4/5] NFS: Save the values of the "mount*=" mount options

Save the value of the mountproto= mountport= mountvers= and mountaddr=
options so that these values can be displayed later via
nfs_show_options().

This preserves the intent of the original mount options, should the file
system need to be remounted based on what's displayed in /proc/mounts.

Signed-off-by: Chuck Lever <[email protected]>
Cc: Miklos Szeredi <[email protected]>
---

fs/nfs/client.c | 10 ++++++++++
include/linux/nfs_fs_sb.h | 7 +++++++
2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 2fed191..d4ceb56 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -690,6 +690,16 @@ static int nfs_init_server(struct nfs_server *server,
if (error < 0)
goto error;

+ /* Preserve the values of mount_server-related mount options */
+ if (data->mount_server.addrlen) {
+ memcpy(&server->mountd_address, &data->mount_server.address,
+ data->mount_server.addrlen);
+ server->mountd_addrlen = data->mount_server.addrlen;
+ }
+ server->mountd_version = data->mount_server.version;
+ server->mountd_port = data->mount_server.port;
+ server->mountd_protocol = data->mount_server.protocol;
+
server->namelen = data->namlen;
/* Create a client RPC handle for the NFSv3 ACL management interface */
nfs_init_server_aclclient(server);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 670e5c7..ac7e4fb 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -118,6 +118,13 @@ struct nfs_server {

atomic_t active; /* Keep trace of any activity to this server */
wait_queue_head_t active_wq; /* Wait for any activity to stop */
+
+ /* mountd-related mount options */
+ struct sockaddr_storage mountd_address;
+ size_t mountd_addrlen;
+ u32 mountd_version;
+ unsigned short mountd_port;
+ unsigned short mountd_protocol;
};

/* Server capabilities */