kernel/linux.git/net/sunrpc/clnt.c, branch linux-4.7.y

SUNRPC: Silence WARN_ON when NFSv4.1 over RDMA is in use

2016-10-07T13:21:25+00:00

commit 16590a228109e2f318d2cc6466221134cfab723a upstream. Using NFSv4.1 on RDMA should be safe, so broaden the new checks in rpc_create(). WARN_ON_ONCE is used, matching most other WARN call sites in clnt.c. Fixes: 39a9beab5acb ("rpc: share one xps between all backchannels") Fixes: d50039ea5ee6 ("nfsd4/rpc: move backchannel create logic...") Signed-off-by: Chuck Lever Reviewed-by: J. Bruce Fields Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman

rpc: share one xps between all backchannels

2016-06-15T14:32:25+00:00

The spec allows backchannels for multiple clients to share the same tcp connection. When that happens, we need to use the same xprt for all of them. Similarly, we need the same xps. This fixes list corruption introduced by the multipath code. Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields Acked-by: Trond Myklebust

nfsd4/rpc: move backchannel create logic into rpc code

2016-06-15T14:32:25+00:00

Also simplify the logic a bit. Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields Acked-by: Trond Myklebust

SUNRPC: fix xprt leak on xps allocation failure

2016-06-15T14:32:25+00:00

Callers of rpc_create_xprt expect it to put the xprt on success and failure. Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields Acked-by: Trond Myklebust

sunrpc: Advertise maximum backchannel payload size

2016-05-17T19:47:57+00:00

RPC-over-RDMA transports have a limit on how large a backward direction (backchannel) RPC message can be. Ensure that the NFSv4.x CREATE_SESSION operation advertises this limit to servers. Signed-off-by: Chuck Lever Tested-by: Steve Wise Signed-off-by: Anna Schumaker

SUNRPC: Allow addition of new transports to a struct rpc_clnt

2016-02-05T23:48:57+00:00

Add a function to allow creation and addition of a new transport to an existing rpc_clnt Signed-off-by: Trond Myklebust

SUNRPC: Make NFS swap work with multipath

2016-02-05T23:48:56+00:00

Signed-off-by: Trond Myklebust

SUNRPC: Add a helper to apply a function to all the rpc_clnt's transports

2016-02-05T23:48:55+00:00

Add a helper for tasks that require us to apply a function to all the transports in an rpc_clnt. An example of a usecase would be BIND_CONN_TO_SESSION, where we want to send one RPC call down each transport. Signed-off-by: Trond Myklebust

SUNRPC: Use the multipath iterator to assign a transport to each task

2016-02-05T23:48:55+00:00

Signed-off-by: Trond Myklebust

SUNRPC: Make rpc_clnt store the multipath iterators

2016-02-05T23:48:54+00:00

This is a pre-patch for the RPC multipath code. It sets up the storage in struct rpc_clnt for the multipath code. Signed-off-by: Trond Myklebust