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| author |   David Howells <dhowells@redhat.com> | 2009-04-03 16:42:42 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2009-04-03 16:42:42 +0100 |
| commit | 147272813e043fb44bd112527951da70c1e663de (patch) | |
| tree | 4b67df2bb809c7b661e7c6f4b1692ab8af41a996 /include | |
| parent | NFS: Register NFS for caching and retrieve the top-level index (diff) | |
| download | linux-dev-147272813e043fb44bd112527951da70c1e663de.tar.xz linux-dev-147272813e043fb44bd112527951da70c1e663de.zip | |
NFS: Define and create server-level objects
Define and create server-level cache index objects (as managed by nfs_client
structs).
Each server object is created in the NFS top-level index object and is itself
an index into which superblock-level objects are inserted.
Ideally there would be one superblock-level object per server, and the former
would be folded into the latter; however, since the "nosharecache" option
exists this isn't possible.
The server object key is a sequence consisting of:
(1) NFS version
(2) Server address family (eg: AF_INET or AF_INET6)
(3) Server port.
(4) Server IP address.
The key blob is of variable length, depending on the length of (4).
The server object is given no coherency data to carry in the auxiliary data
permitted by the cache.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index a749f8564aa6..0a374b9c5093 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -64,6 +64,10 @@ struct nfs_client { char cl_ipaddr[48]; unsigned char cl_id_uniquifier; #endif + +#ifdef CONFIG_NFS_FSCACHE + struct fscache_cookie *fscache; /* client index cache cookie */ +#endif }; /* |