diff options
Diffstat (limited to 'fs/nfs/fscache-index.c')
| -rw-r--r-- | fs/nfs/fscache-index.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/fs/nfs/fscache-index.c b/fs/nfs/fscache-index.c index 0ee4b93d36ea..6fd3679b7137 100644 --- a/fs/nfs/fscache-index.c +++ b/fs/nfs/fscache-index.c @@ -50,59 +50,6 @@ void nfs_fscache_unregister(void) } /* - * Layout of the key for an NFS server cache object. - */ -struct nfs_server_key { - uint16_t nfsversion; /* NFS protocol version */ - uint16_t family; /* address family */ - uint16_t port; /* IP port */ - union { - struct in_addr ipv4_addr; /* IPv4 address */ - struct in6_addr ipv6_addr; /* IPv6 address */ - } addr[0]; -}; - -/* - * Generate a key to describe a server in the main NFS index - * - We return the length of the key, or 0 if we can't generate one - */ -static uint16_t nfs_server_get_key(const void *cookie_netfs_data, - void *buffer, uint16_t bufmax) -{ - const struct nfs_client *clp = cookie_netfs_data; - const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) &clp->cl_addr; - const struct sockaddr_in *sin = (struct sockaddr_in *) &clp->cl_addr; - struct nfs_server_key *key = buffer; - uint16_t len = sizeof(struct nfs_server_key); - - memset(key, 0, len); - key->nfsversion = clp->rpc_ops->version; - key->family = clp->cl_addr.ss_family; - - switch (clp->cl_addr.ss_family) { - case AF_INET: - key->port = sin->sin_port; - key->addr[0].ipv4_addr = sin->sin_addr; - len += sizeof(key->addr[0].ipv4_addr); - break; - - case AF_INET6: - key->port = sin6->sin6_port; - key->addr[0].ipv6_addr = sin6->sin6_addr; - len += sizeof(key->addr[0].ipv6_addr); - break; - - default: - printk(KERN_WARNING "NFS: Unknown network family '%d'\n", - clp->cl_addr.ss_family); - len = 0; - break; - } - - return len; -} - -/* * Define the server object for FS-Cache. This is used to describe a server * object to fscache_acquire_cookie(). It is keyed by the NFS protocol and * server address parameters. @@ -110,33 +57,9 @@ static uint16_t nfs_server_get_key(const void *cookie_netfs_data, const struct fscache_cookie_def nfs_fscache_server_index_def = { .name = "NFS.server", .type = FSCACHE_COOKIE_TYPE_INDEX, - .get_key = nfs_server_get_key, }; /* - * Generate a key to describe a superblock key in the main NFS index - */ -static uint16_t nfs_super_get_key(const void *cookie_netfs_data, - void *buffer, uint16_t bufmax) -{ - const struct nfs_fscache_key *key; - const struct nfs_server *nfss = cookie_netfs_data; - uint16_t len; - - key = nfss->fscache_key; - len = sizeof(key->key) + key->key.uniq_len; - if (len > bufmax) { - len = 0; - } else { - memcpy(buffer, &key->key, sizeof(key->key)); - memcpy(buffer + sizeof(key->key), - key->key.uniquifier, key->key.uniq_len); - } - - return len; -} - -/* * Define the superblock object for FS-Cache. This is used to describe a * superblock object to fscache_acquire_cookie(). It is keyed by all the NFS * parameters that might cause a separate superblock. @@ -144,41 +67,9 @@ static uint16_t nfs_super_get_key(const void *cookie_netfs_data, const struct fscache_cookie_def nfs_fscache_super_index_def = { .name = "NFS.super", .type = FSCACHE_COOKIE_TYPE_INDEX, - .get_key = nfs_super_get_key, }; /* - * Definition of the auxiliary data attached to NFS inode storage objects - * within the cache. - * - * The contents of this struct are recorded in the on-disk local cache in the - * auxiliary data attached to the data storage object backing an inode. This - * permits coherency to be managed when a new inode binds to an already extant - * cache object. - */ -struct nfs_fscache_inode_auxdata { - struct timespec mtime; - struct timespec ctime; - loff_t size; - u64 change_attr; -}; - -/* - * Generate a key to describe an NFS inode in an NFS server's index - */ -static uint16_t nfs_fscache_inode_get_key(const void *cookie_netfs_data, - void *buffer, uint16_t bufmax) -{ - const struct nfs_inode *nfsi = cookie_netfs_data; - uint16_t nsize; - - /* use the inode's NFS filehandle as the key */ - nsize = nfsi->fh.size; - memcpy(buffer, nfsi->fh.data, nsize); - return nsize; -} - -/* * Get certain file attributes from the netfs data * - This function can be absent for an index * - Not permitted to return an error @@ -193,35 +84,6 @@ static void nfs_fscache_inode_get_attr(const void *cookie_netfs_data, } /* - * Get the auxiliary data from netfs data - * - This function can be absent if the index carries no state data - * - Should store the auxiliary data in the buffer - * - Should return the amount of amount stored - * - Not permitted to return an error - * - The netfs data from the cookie being used as the source is presented - */ -static uint16_t nfs_fscache_inode_get_aux(const void *cookie_netfs_data, - void *buffer, uint16_t bufmax) -{ - struct nfs_fscache_inode_auxdata auxdata; - const struct nfs_inode *nfsi = cookie_netfs_data; - - memset(&auxdata, 0, sizeof(auxdata)); - auxdata.size = nfsi->vfs_inode.i_size; - auxdata.mtime = nfsi->vfs_inode.i_mtime; - auxdata.ctime = nfsi->vfs_inode.i_ctime; - - if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) - auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode); - - if (bufmax > sizeof(auxdata)) - bufmax = sizeof(auxdata); - - memcpy(buffer, &auxdata, bufmax); - return bufmax; -} - -/* * Consult the netfs about the state of an object * - This function can be absent if the index carries no state data * - The netfs data from the cookie being used as the target is @@ -288,9 +150,7 @@ static void nfs_fh_put_context(void *cookie_netfs_data, void *context) const struct fscache_cookie_def nfs_fscache_inode_object_def = { .name = "NFS.fh", .type = FSCACHE_COOKIE_TYPE_DATAFILE, - .get_key = nfs_fscache_inode_get_key, .get_attr = nfs_fscache_inode_get_attr, - .get_aux = nfs_fscache_inode_get_aux, .check_aux = nfs_fscache_inode_check_aux, .get_context = nfs_fh_get_context, .put_context = nfs_fh_put_context, |