From: Alex Elder <elder@inktank.com>
Date: Tue, 12 Mar 2013 04:34:23 +0000 (-0500)
Subject: libceph: use cursor for inbound data pages
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~26^2~171
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=878efabd3236abaedd0a4539bbb248ac69fed115;p=pandora-kernel.git

libceph: use cursor for inbound data pages

The cursor code for a page array selects the right page, page
offset, and length to use for a ceph_tcp_recvpage() call, so
we can use it to replace a block in read_partial_message_pages().

This partially resolves:
    http://tracker.ceph.com/issues/4428

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
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