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NLM: Introduce an arguments structure for nlmclnt_init()

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Clean up: pass 5 arguments to nlmclnt_init() in a structure similar to the
new nfs_client_initdata structure.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2008-01-15 16:04:20 -05:00 committed by Trond Myklebust
parent 1093a60ef3
commit 883bb163f8
3 changed files with 32 additions and 26 deletions
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22
fs/lockd/clntlock.c
View file

@ -43,31 +43,25 @@ static LIST_HEAD(nlm_blocked);
/**
* nlmclnt_init - Set up per-NFS mount point lockd data structures
* @server_name: server's hostname
* @server_address: server's network address
* @server_addrlen: length of server's address
* @protocol: transport protocol lockd should use
* @nfs_version: NFS protocol version for this mount point
* @nlm_init: pointer to arguments structure
*
* Returns pointer to an appropriate nlm_host struct,
* or an ERR_PTR value.
*/
struct nlm_host *nlmclnt_init(const char *server_name,
const struct sockaddr *server_address,
size_t server_addrlen,
unsigned short protocol, u32 nfs_version)
struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
{
struct nlm_host *host;
u32 nlm_version = (nfs_version == 2) ? 1 : 4;
u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
int status;
status = lockd_up(protocol);
status = lockd_up(nlm_init->protocol);
if (status < 0)
return ERR_PTR(status);
host = nlmclnt_lookup_host((struct sockaddr_in *)server_address,
protocol, nlm_version,
server_name, strlen(server_name));
host = nlmclnt_lookup_host((struct sockaddr_in *)nlm_init->address,
nlm_init->protocol, nlm_version,
nlm_init->hostname,
strlen(nlm_init->hostname));
if (host == NULL) {
lockd_down();
return ERR_PTR(-ENOLCK);

17
fs/nfs/client.c
View file

@ -468,18 +468,21 @@ static int nfs_start_lockd(struct nfs_server *server)
{
struct nlm_host *host;
struct nfs_client *clp = server->nfs_client;
u32 nfs_version = clp->rpc_ops->version;
unsigned short protocol = server->flags & NFS_MOUNT_TCP ?
IPPROTO_TCP : IPPROTO_UDP;
struct nlmclnt_initdata nlm_init = {
.hostname = clp->cl_hostname,
.address = (struct sockaddr *)&clp->cl_addr,
.addrlen = clp->cl_addrlen,
.protocol = server->flags & NFS_MOUNT_TCP ?
IPPROTO_TCP : IPPROTO_UDP,
.nfs_version = clp->rpc_ops->version,
};
if (nfs_version > 3)
if (nlm_init.nfs_version > 3)
return 0;
if (server->flags & NFS_MOUNT_NONLM)
return 0;
host = nlmclnt_init(clp->cl_hostname,
(struct sockaddr *)&clp->cl_addr,
clp->cl_addrlen, protocol, nfs_version);
host = nlmclnt_init(&nlm_init);
if (IS_ERR(host))
return PTR_ERR(host);

19
include/linux/lockd/bind.h
View file

@ -32,14 +32,23 @@ struct nlmsvc_binding {
extern struct nlmsvc_binding * nlmsvc_ops;
/*
* Similar to nfs_client_initdata, but without the NFS-specific
* rpc_ops field.
*/
struct nlmclnt_initdata {
const char *hostname;
const struct sockaddr *address;
size_t addrlen;
unsigned short protocol;
u32 nfs_version;
};
/*
* Functions exported by the lockd module
*/
extern struct nlm_host *nlmclnt_init(const char *server_name,
const struct sockaddr *server_address,
size_t server_addrlen,
unsigned short protocol,
u32 nfs_version);
extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init);
extern void nlmclnt_done(struct nlm_host *host);
extern int nlmclnt_proc(struct nlm_host *host, int cmd,