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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-09 15:06:19 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-09 15:06:19 -0400
commit62ab460cf5e450e1d207a98a9c6cf2e4a6a78fd1 (patch)
tree595ca70261f46b93bda1998285e5f5c7da684cbc /fs/nfs/client.c
parenta78cb57a106fceeba26da2907db9d8886700e1dc (diff)
NFSv4: Add 'server capability' flags for NFSv4 recommended attributes
If the NFSv4 server doesn't support a POSIX attribute, the generic NFS code needs to know that, so that it don't keep trying to poll for it. However, by the same count, if the NFSv4 server does support that attribute, then we should ensure that the inode metadata is appropriately labelled as being untrusted. For instance, if we don't know the correct value of the file's uid, we should certainly not be caching ACLs or ACCESS results. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/client.c')
-rw-r--r--fs/nfs/client.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 8d25ccb2d51..8f34fd8028f 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -809,6 +809,9 @@ static int nfs_init_server(struct nfs_server *server,
/* Initialise the client representation from the mount data */
server->flags = data->flags;
server->options = data->options;
+ server->caps |= NFS_CAP_HARDLINKS|NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
+ NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|NFS_CAP_OWNER_GROUP|
+ NFS_CAP_ATIME|NFS_CAP_CTIME|NFS_CAP_MTIME;
if (data->rsize)
server->rsize = nfs_block_size(data->rsize, NULL);
@@ -1274,7 +1277,7 @@ static int nfs4_init_server(struct nfs_server *server,
/* Initialise the client representation from the mount data */
server->flags = data->flags;
- server->caps |= NFS_CAP_ATOMIC_OPEN;
+ server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
server->options = data->options;
/* Get a client record */
@@ -1400,7 +1403,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
/* Initialise the client representation from the parent server */
nfs_server_copy_userdata(server, parent_server);
- server->caps |= NFS_CAP_ATOMIC_OPEN;
+ server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
/* Get a client representation.
* Note: NFSv4 always uses TCP, */