mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 01:50:53 +07:00
NFS: Add nfs_client behavior flags
"noresvport" and "discrtry" can be passed to nfs_create_rpc_client() by setting flags in the passed-in nfs_client. This change makes it easy to add new flags. Note that these settings are now "sticky" over the lifetime of a struct nfs_client, and may even be copied when an nfs_client is cloned. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
Trond Myklebust
parent
8cab4c390b
commit
4bf590e08f
@ -131,6 +131,7 @@ const struct rpc_program nfsacl_program = {
|
||||
#endif /* CONFIG_NFS_V3_ACL */
|
||||
|
||||
struct nfs_client_initdata {
|
||||
unsigned long init_flags;
|
||||
const char *hostname;
|
||||
const struct sockaddr *addr;
|
||||
size_t addrlen;
|
||||
@ -542,8 +543,7 @@ static struct nfs_client *
|
||||
nfs_get_client(const struct nfs_client_initdata *cl_init,
|
||||
const struct rpc_timeout *timeparms,
|
||||
const char *ip_addr,
|
||||
rpc_authflavor_t authflavour,
|
||||
int noresvport)
|
||||
rpc_authflavor_t authflavour)
|
||||
{
|
||||
struct nfs_client *clp, *new = NULL;
|
||||
struct nfs_net *nn = net_generic(cl_init->net, nfs_net_id);
|
||||
@ -565,9 +565,10 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
|
||||
if (new) {
|
||||
list_add(&new->cl_share_link, &nn->nfs_client_list);
|
||||
spin_unlock(&nn->nfs_client_lock);
|
||||
new->cl_flags = cl_init->init_flags;
|
||||
return cl_init->rpc_ops->init_client(new,
|
||||
timeparms, ip_addr,
|
||||
authflavour, noresvport);
|
||||
authflavour);
|
||||
}
|
||||
|
||||
spin_unlock(&nn->nfs_client_lock);
|
||||
@ -651,8 +652,7 @@ static void nfs_init_timeout_values(struct rpc_timeout *to, int proto,
|
||||
*/
|
||||
static int nfs_create_rpc_client(struct nfs_client *clp,
|
||||
const struct rpc_timeout *timeparms,
|
||||
rpc_authflavor_t flavor,
|
||||
int discrtry, int noresvport)
|
||||
rpc_authflavor_t flavor)
|
||||
{
|
||||
struct rpc_clnt *clnt = NULL;
|
||||
struct rpc_create_args args = {
|
||||
@ -667,9 +667,9 @@ static int nfs_create_rpc_client(struct nfs_client *clp,
|
||||
.authflavor = flavor,
|
||||
};
|
||||
|
||||
if (discrtry)
|
||||
if (test_bit(NFS_CS_DISCRTRY, &clp->cl_flags))
|
||||
args.flags |= RPC_CLNT_CREATE_DISCRTRY;
|
||||
if (noresvport)
|
||||
if (test_bit(NFS_CS_NORESVPORT, &clp->cl_flags))
|
||||
args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
|
||||
|
||||
if (!IS_ERR(clp->cl_rpcclient))
|
||||
@ -809,14 +809,12 @@ static int nfs_init_server_rpcclient(struct nfs_server *server,
|
||||
* @timeparms: timeout parameters for underlying RPC transport
|
||||
* @ip_addr: IP presentation address (not used)
|
||||
* @authflavor: authentication flavor for underlying RPC transport
|
||||
* @noresvport: set if RPC transport can use an ephemeral source port
|
||||
*
|
||||
* Returns pointer to an NFS client, or an ERR_PTR value.
|
||||
*/
|
||||
struct nfs_client *nfs_init_client(struct nfs_client *clp,
|
||||
const struct rpc_timeout *timeparms,
|
||||
const char *ip_addr, rpc_authflavor_t authflavour,
|
||||
int noresvport)
|
||||
const char *ip_addr, rpc_authflavor_t authflavour)
|
||||
{
|
||||
int error;
|
||||
|
||||
@ -830,8 +828,7 @@ struct nfs_client *nfs_init_client(struct nfs_client *clp,
|
||||
* Create a client RPC handle for doing FSSTAT with UNIX auth only
|
||||
* - RFC 2623, sec 2.3.2
|
||||
*/
|
||||
error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX,
|
||||
0, noresvport);
|
||||
error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX);
|
||||
if (error < 0)
|
||||
goto error;
|
||||
nfs_mark_client_ready(clp, NFS_CS_READY);
|
||||
@ -881,10 +878,11 @@ static int nfs_init_server(struct nfs_server *server,
|
||||
|
||||
nfs_init_timeout_values(&timeparms, data->nfs_server.protocol,
|
||||
data->timeo, data->retrans);
|
||||
if (data->flags & NFS_MOUNT_NORESVPORT)
|
||||
set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
|
||||
|
||||
/* Allocate or find a client reference we can use */
|
||||
clp = nfs_get_client(&cl_init, &timeparms, NULL, RPC_AUTH_UNIX,
|
||||
data->flags & NFS_MOUNT_NORESVPORT);
|
||||
clp = nfs_get_client(&cl_init, &timeparms, NULL, RPC_AUTH_UNIX);
|
||||
if (IS_ERR(clp)) {
|
||||
dprintk("<-- nfs_init_server() = error %ld\n", PTR_ERR(clp));
|
||||
return PTR_ERR(clp);
|
||||
@ -1364,15 +1362,13 @@ static int nfs4_init_client_minor_version(struct nfs_client *clp)
|
||||
* @timeparms: timeout parameters for underlying RPC transport
|
||||
* @ip_addr: callback IP address in presentation format
|
||||
* @authflavor: authentication flavor for underlying RPC transport
|
||||
* @noresvport: set if RPC transport can use an ephemeral source port
|
||||
*
|
||||
* Returns pointer to an NFS client, or an ERR_PTR value.
|
||||
*/
|
||||
struct nfs_client *nfs4_init_client(struct nfs_client *clp,
|
||||
const struct rpc_timeout *timeparms,
|
||||
const char *ip_addr,
|
||||
rpc_authflavor_t authflavour,
|
||||
int noresvport)
|
||||
rpc_authflavor_t authflavour)
|
||||
{
|
||||
char buf[INET6_ADDRSTRLEN + 1];
|
||||
int error;
|
||||
@ -1386,8 +1382,8 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
|
||||
/* Check NFS protocol revision and initialize RPC op vector */
|
||||
clp->rpc_ops = &nfs_v4_clientops;
|
||||
|
||||
error = nfs_create_rpc_client(clp, timeparms, authflavour,
|
||||
1, noresvport);
|
||||
__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
|
||||
error = nfs_create_rpc_client(clp, timeparms, authflavour);
|
||||
if (error < 0)
|
||||
goto error;
|
||||
|
||||
@ -1455,9 +1451,11 @@ static int nfs4_set_client(struct nfs_server *server,
|
||||
|
||||
dprintk("--> nfs4_set_client()\n");
|
||||
|
||||
if (server->flags & NFS_MOUNT_NORESVPORT)
|
||||
set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
|
||||
|
||||
/* Allocate or find a client reference we can use */
|
||||
clp = nfs_get_client(&cl_init, timeparms, ip_addr, authflavour,
|
||||
server->flags & NFS_MOUNT_NORESVPORT);
|
||||
clp = nfs_get_client(&cl_init, timeparms, ip_addr, authflavour);
|
||||
if (IS_ERR(clp)) {
|
||||
error = PTR_ERR(clp);
|
||||
goto error;
|
||||
@ -1512,7 +1510,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
|
||||
*/
|
||||
nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans);
|
||||
clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr,
|
||||
mds_clp->cl_rpcclient->cl_auth->au_flavor, 0);
|
||||
mds_clp->cl_rpcclient->cl_auth->au_flavor);
|
||||
|
||||
dprintk("<-- %s %p\n", __func__, clp);
|
||||
return clp;
|
||||
|
||||
@ -240,8 +240,7 @@ extern int nfs4_init_ds_session(struct nfs_client *clp);
|
||||
void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
|
||||
extern struct nfs_client *nfs_init_client(struct nfs_client *clp,
|
||||
const struct rpc_timeout *timeparms,
|
||||
const char *ip_addr, rpc_authflavor_t authflavour,
|
||||
int noresvport);
|
||||
const char *ip_addr, rpc_authflavor_t authflavour);
|
||||
|
||||
/* dir.c */
|
||||
extern int nfs_access_cache_shrinker(struct shrinker *shrink,
|
||||
@ -376,8 +375,7 @@ extern void __nfs4_read_done_cb(struct nfs_read_data *);
|
||||
extern struct nfs_client *nfs4_init_client(struct nfs_client *clp,
|
||||
const struct rpc_timeout *timeparms,
|
||||
const char *ip_addr,
|
||||
rpc_authflavor_t authflavour,
|
||||
int noresvport);
|
||||
rpc_authflavor_t authflavour);
|
||||
extern int _nfs4_call_sync(struct rpc_clnt *clnt,
|
||||
struct nfs_server *server,
|
||||
struct rpc_message *msg,
|
||||
|
||||
@ -35,6 +35,9 @@ struct nfs_client {
|
||||
#define NFS_CS_RENEWD 3 /* - renewd started */
|
||||
#define NFS_CS_STOP_RENEW 4 /* no more state to renew */
|
||||
#define NFS_CS_CHECK_LEASE_TIME 5 /* need to check lease time */
|
||||
unsigned long cl_flags; /* behavior switches */
|
||||
#define NFS_CS_NORESVPORT 0 /* - use ephemeral src port */
|
||||
#define NFS_CS_DISCRTRY 1 /* - disconnect on RPC retry */
|
||||
struct sockaddr_storage cl_addr; /* server identifier */
|
||||
size_t cl_addrlen;
|
||||
char * cl_hostname; /* hostname of server */
|
||||
|
||||
@ -1399,7 +1399,7 @@ struct nfs_rpc_ops {
|
||||
struct iattr *iattr);
|
||||
struct nfs_client *
|
||||
(*init_client) (struct nfs_client *, const struct rpc_timeout *,
|
||||
const char *, rpc_authflavor_t, int);
|
||||
const char *, rpc_authflavor_t);
|
||||
};
|
||||
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user