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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-04-14 11:42:00 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-04-14 12:26:03 -0400 |
| commit | b7993cebb841b0da7a33e9d5ce301a9fd3209165 (patch) | |
| tree | 62361acf994e04b3b9205d5e4a9b26c4a3193c34 | |
| parent | ba60eb25ff6be6f8e60488cdfd454e5c612bce60 (diff) | |
| download | op-kernel-dev-b7993cebb841b0da7a33e9d5ce301a9fd3209165.zip op-kernel-dev-b7993cebb841b0da7a33e9d5ce301a9fd3209165.tar.gz | |
SUNRPC: Allow rpc_create() to request that TCP slots be unlimited
This is mainly for use by NFSv4.1, where the session negotiation
ultimately wants to decide how many RPC slots we can fill.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | include/linux/sunrpc/clnt.h | 1 | ||||
| -rw-r--r-- | include/linux/sunrpc/xprt.h | 3 | ||||
| -rw-r--r-- | net/sunrpc/clnt.c | 2 | ||||
| -rw-r--r-- | net/sunrpc/xprtsock.c | 6 |
4 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index 2cf4ffa..e7d492c 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -124,6 +124,7 @@ struct rpc_create_args { #define RPC_CLNT_CREATE_NOPING (1UL << 4) #define RPC_CLNT_CREATE_DISCRTRY (1UL << 5) #define RPC_CLNT_CREATE_QUIET (1UL << 6) +#define RPC_CLNT_CREATE_INFINITE_SLOTS (1UL << 7) struct rpc_clnt *rpc_create(struct rpc_create_args *args); struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *, diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 12815f6..ff53924 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -255,6 +255,8 @@ static inline int bc_prealloc(struct rpc_rqst *req) } #endif /* CONFIG_SUNRPC_BACKCHANNEL */ +#define XPRT_CREATE_INFINITE_SLOTS (1U) + struct xprt_create { int ident; /* XPRT_TRANSPORT identifier */ struct net * net; @@ -263,6 +265,7 @@ struct xprt_create { size_t addrlen; const char *servername; struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */ + unsigned int flags; }; struct xprt_class { diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index a80ee9b..651245a 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -414,6 +414,8 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) }; char servername[48]; + if (args->flags & RPC_CLNT_CREATE_INFINITE_SLOTS) + xprtargs.flags |= XPRT_CREATE_INFINITE_SLOTS; /* * If the caller chooses not to specify a hostname, whip * up a string representation of the passed-in address. diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 3081620..726e702 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -2762,9 +2762,13 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args) struct rpc_xprt *xprt; struct sock_xprt *transport; struct rpc_xprt *ret; + unsigned int max_slot_table_size = xprt_max_tcp_slot_table_entries; + + if (args->flags & XPRT_CREATE_INFINITE_SLOTS) + max_slot_table_size = RPC_MAX_SLOT_TABLE_LIMIT; xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries, - xprt_max_tcp_slot_table_entries); + max_slot_table_size); if (IS_ERR(xprt)) return xprt; transport = container_of(xprt, struct sock_xprt, xprt); |
