From: Chuck Lever <chuck.lever@oracle.com>
Date: Wed, 28 May 2014 14:32:34 +0000 (-0400)
Subject: xprtrdma: Remove MEMWINDOWS registration modes
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~64^2~5^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b45ccfd25d50;p=pandora-kernel.git

xprtrdma: Remove MEMWINDOWS registration modes

The MEMWINDOWS and MEMWINDOWS_ASYNC memory registration modes were
intended as stop-gap modes before the introduction of FRMR. They
are now considered obsolete.

MEMWINDOWS_ASYNC is also considered unsafe because it can leave
client memory registered and exposed for an indeterminant time after
each I/O.

At this point, the MEMWINDOWS modes add needless complexity, so
remove them.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---

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