writeback: make bdi_start_background_writeback() take bdi_writeback instead of backin...
authorTejun Heo <tj@kernel.org>
Fri, 22 May 2015 21:13:54 +0000 (17:13 -0400)
committerJens Axboe <axboe@fb.com>
Tue, 2 Jun 2015 14:33:36 +0000 (08:33 -0600)
commit9ecf4866c018aeb304a7b49216c4d183665becb7
tree6ad8f200eea95b1b1fca2a121b91c97ac65ad81f
parentbc05873dccd27d75d6acdf812c3edfb181f1ba17
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>
fs/fs-writeback.c
include/linux/backing-dev.h
mm/page-writeback.c