rbd: don't destroy rbd_dev in device release function
authorAlex Elder <elder@inktank.com>
Mon, 29 Apr 2013 04:32:34 +0000 (23:32 -0500)
committerSage Weil <sage@inktank.com>
Thu, 2 May 2013 04:20:03 +0000 (21:20 -0700)
commit200a6a8be5dba96df121f3d2363964dd77ee7e1b
tree0d09fb591b8a54cb67d3c11544d6e36337667b74
parent79ab7558aac7622109e9d9b089cac2c5f06aca20
rbd: don't destroy rbd_dev in device release function

Rename rbd_dev_probe_finish() to be rbd_dev_device_setup().  Its
purpose is to set up the Linux side of an rbd device mapping.
Rename rbd_dev_release() to be rbd_dev_device_release(), making
it more obvious it serves as the inverse of the setup function
(or it will).

Encapsulate some of what was done in rbd_dev_release() into a new
function rbd_dev_image_release(), which serves as the inverse of
setting up the ceph side of the mapped rbd image.

Define a new helper rbd_dev_clear_mapping() to simply zero out the
fields of a mapping structure--the inverse of rbd_dev_set_mapping().

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
drivers/block/rbd.c