svcrdma: Do not send Write chunk XDR pad with inline content

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The NFS server's XDR encoders adds an XDR pad for content in the
xdr_buf page list at the beginning of the xdr_buf's tail buffer.

On RDMA transports, Write chunks are sent separately and without an
XDR pad.

If a Write chunk is being sent, strip off the pad in the tail buffer
so that inline content following the Write chunk remains XDR-aligned
when it is sent to the client.

BugLink: https://bugzilla.linux-nfs.org/show_bug.cgi?id=294
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

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This commit is contained in:

Chuck Lever 2016-03-01 13:05:54 -05:00 • committed by J. Bruce Fields

parent cf570a9374

commit f6763c29ab

3 changed files with 19 additions and 7 deletions

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2

include/linux/sunrpc/svc_rdma.h

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2

net/sunrpc/xprtrdma/svc_rdma_backchannel.c

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22

net/sunrpc/xprtrdma/svc_rdma_sendto.c

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