tree 6ad8f200eea95b1b1fca2a121b91c97ac65ad81f
parent bc05873dccd27d75d6acdf812c3edfb181f1ba17
author Tejun Heo <tj@kernel.org> 1432329234 -0400
committer Jens Axboe <axboe@fb.com> 1433255616 -0600

writeback: make bdi_start_background_writeback() take bdi_writeback instead of backing_dev_info

bdi_start_background_writeback() currently takes @bdi and kicks the
root wb (bdi_writeback).  In preparation for cgroup writeback support,
make it take wb instead.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>