From 2fcc213a18644610c79edbb5e847d73c6c5d5ded Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 3 Aug 2015 13:04:26 -0400 Subject: [PATCH] xprtrdma: Fix large NFS SYMLINK calls Repair how rpcrdma_marshal_req() chooses which RDMA message type to use for large non-WRITE operations so that it picks RDMA_NOMSG in the correct situations, and sets up the marshaling logic to SEND only the RPC/RDMA header. Large NFSv2 SYMLINK requests now use RDMA_NOMSG calls. The Linux NFS server XDR decoder for NFSv2 SYMLINK does not handle having the pathname argument arrive in a separate buffer. The decoder could be fixed, but this is simpler and RDMA_NOMSG can be used in a variety of other situations. Ensure that the Linux client continues to use "RDMA_MSG + read list" when sending large NFSv3 SYMLINK requests, which is more efficient than using RDMA_NOMSG. Large NFSv4 CREATE(NF4LNK) requests are changed to use "RDMA_MSG + read list" just like NFSv3 (see Section 5 of RFC 5667). Before, these did not work at all. Signed-off-by: Chuck Lever Tested-by: Devesh Sharma Signed-off-by: Anna Schumaker --- Reading git-format-patch failed