diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2014-07-29 17:23:34 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2014-07-31 16:22:52 -0400 |
| commit | 43e95988178ed70a878a5be6be9ad248342dbf7d (patch) | |
| tree | 03944907357c8eebeea55f5c0dcba2339c2feea1 /net/sunrpc/xprtrdma/xprt_rdma.h | |
| parent | 73806c8832b3438ef0439603dab1f3cfc61cb6cd (diff) | |
| download | op-kernel-dev-43e95988178ed70a878a5be6be9ad248342dbf7d.zip op-kernel-dev-43e95988178ed70a878a5be6be9ad248342dbf7d.tar.gz | |
xprtrdma: Limit data payload size for ALLPHYSICAL
When the client uses physical memory registration, each page in the
payload gets its own array entry in the RPC/RDMA header's chunk list.
Therefore, don't advertise a maximum payload size that would require
more array entries than can fit in the RPC buffer where RPC/RDMA
headers are built.
BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=248
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Shirley Ma <shirley.ma@oracle.com>
Tested-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/xprt_rdma.h')
| -rw-r--r-- | net/sunrpc/xprtrdma/xprt_rdma.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 97ca516..f3d86b2 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -348,6 +348,7 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *); * RPC/RDMA protocol calls - xprtrdma/rpc_rdma.c */ int rpcrdma_marshal_req(struct rpc_rqst *); +size_t rpcrdma_max_payload(struct rpcrdma_xprt *); /* Temporary NFS request map cache. Created in svc_rdma.c */ extern struct kmem_cache *svc_rdma_map_cachep; |
