tree bf5920d41e2f948ce92b9dbe8bf3919290000f4e
parent 0cfbcafcae8b7364b5fa96c2b26ccde7a3a296a9
author NeilBrown <neilb@suse.de> 1355514567 +0100
committer Jens Axboe <axboe@kernel.dk> 1355514567 +0100

block: export block_unplug tracepoint

This allows stacked devices (like md/raid5) to provide blktrace
tracing, including unplug events.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>