From: Peng Tao <tao.peng@primarydata.com>
Date: Mon, 17 Nov 2014 01:30:41 +0000 (+0800)
Subject: nfs41: introduce NFS_LAYOUT_RETURN_BEFORE_CLOSE
X-Git-Tag: fixes-v4.0-rc1~136^2~27^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=193e3aa2ccfb5a53acf7a690b80a1e415b74dbd7;p=pandora-kernel.git

nfs41: introduce NFS_LAYOUT_RETURN_BEFORE_CLOSE

When it is set, generic pnfs would try to send layoutreturn right
before last close/delegation_return regard less NFS_LAYOUT_ROC is
set or not. LD can then make sure layoutreturn is always sent
rather than being omitted.

The difference against NFS_LAYOUT_RETURN is that
NFS_LAYOUT_RETURN_BEFORE_CLOSE does not block usage of the layout so
LD can set it and expect generic layer to try pnfs path at the
same time.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
---

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