From: Alex Elder <elder@inktank.com>
Date: Mon, 6 May 2013 14:51:30 +0000 (-0500)
Subject: rbd: simplify rbd_dev_v1_probe()
X-Git-Tag: v3.10-rc2~28^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=30d60ba2f258da24b91edb880338c7178f901de9;p=pandora-kernel.git

rbd: simplify rbd_dev_v1_probe()

An rbd_dev structure's fields are all zero-filled for an initial
probe, so there's no need to explicitly zero the parent_spec
and parent_overlap fields in rbd_dev_v1_probe().  Removing these
assignments makes rbd_dev_v1_probe() *almost* trivial.

Move the dout() message that announces discovery of an image into
rbd_dev_image_probe(), generalize to support images in either format
and only show it if an image is fully discovered.

This highlights that are some unnecessary cleanups in the error
path for rbd_dev_v1_probe(), so they can be removed.

Now rbd_dev_v1_probe() *is* a trivial wrapper function.

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