From 2e11f8296d22134c4fca7eb022eea2b09facd307 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 21 Aug 2014 11:09:17 -0500
Subject: [PATCH] nfs: cap request size to fit a kmalloced page array

pNFS servers may return arbitrarily large layouts.  Trim back the I/O size
to one that we can at least allocate the page array for.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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