From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 29 Jul 2014 21:23:34 +0000 (-0400)
Subject: xprtrdma: Limit data payload size for ALLPHYSICAL
X-Git-Tag: cleanup-for-v3.18~41^2~24^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43e95988178ed70a878a5be6be9ad248342dbf7d;p=pandora-kernel.git

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>
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