tree 9486cd94a485ae65f9d30e2ea530033f618c48b8
parent c734b79655a91a24afcae73738a43a0db09a801a
author Alex Elder <elder@inktank.com> 1367844030 -0500
committer Alex Elder <elder@inktank.com> 1368017291 -0500

rbd: don't look up snapshot id in rbd_dev_mapping_set()

Currently rbd_dev_mapping_set() looks up the snapshot id for the
snapshot whose name is found in the rbd device's spec structure.

That function gets called by rbd_dev_device_setup(), which is
called by rbd_add() *after* rbd_dev_image_probe().  If the
image probe succeeds, the rbd device's spec will already have
been updated to include names and ids for all fields.

Therefore there's no need to look up the snapshot id in
rbd_dev_mapping_set().

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