From: Alex Elder <elder@inktank.com>
Date: Wed, 1 May 2013 17:43:04 +0000 (-0500)
Subject: rbd: allocate image object names with a slab allocator
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~26^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78c2a44aae2950ecf0279590572b861288714946;p=pandora-kernel.git

rbd: allocate image object names with a slab allocator

The names of objects used for image object requests are always fixed
size.  So create a slab cache to manage them.  Define a new function
rbd_segment_name_free() to match rbd_segment_name() (which is what
supplies the dynamically-allocated name buffer).

This is part of:
    http://tracker.ceph.com/issues/3926

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