writeback: implement bdi_for_each_wb()
authorTejun Heo <tj@kernel.org>
Fri, 22 May 2015 21:13:50 +0000 (17:13 -0400)
committerJens Axboe <axboe@fb.com>
Tue, 2 Jun 2015 14:33:36 +0000 (08:33 -0600)
commitebe41ab0c79d5633123f6faa3265a1a63c5f22d8
tree9d4722bb9c41a8713b76db30ddbbe625a8c5ce8b
parent693108a8a6672cec88265d83f7187dc83ba1d6a3
writeback: implement bdi_for_each_wb()

This will be used to implement bdi-wide operations which should be
distributed across all its cgroup bdi_writebacks.

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>
include/linux/backing-dev.h