tree 41309de6425e854420b26bdcfd94accaf52c3cee
parent 7fd152f4b6ae4f3cf89e4b7a0383cc3c470772fc
author Daniel Stodden <daniel.stodden@citrix.com> 1272664882 +0000
committer Jens Axboe <jaxboe@fusionio.com> 1281199527 +0200

blkfront: Lock blockfront_info during xbdev removal

Same approach as blkfront_closing:
 * Grab the bdev safely, holding the info mutex.
 * Zap xbdev safely, holding the info mutex.
 * Try bdev removal safely, holding bd_mutex.

Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>