From: Ilya Dryomov <ilya.dryomov@inktank.com>
Date: Fri, 21 Mar 2014 17:05:29 +0000 (+0200)
Subject: libceph: primary_temp infrastructure
X-Git-Tag: v3.15-rc1~61^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9686f94c8cfc06e8afb7b2233ab8f1f6ac01957f;p=pandora-kernel.git

libceph: primary_temp infrastructure

Add primary_temp mappings infrastructure.  struct ceph_pg_mapping is
overloaded, primary_temp mappings are stored in an rb-tree, rooted at
ceph_osdmap, in a manner similar to pg_temp mappings.

Dump primary_temp mappings to /sys/kernel/debug/ceph/<client>/osdmap,
one 'primary_temp <pgid> <osd>' per line, e.g:

    primary_temp 2.6 4

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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