writeback: track if we're sleeping on progress in balance_dirty_pages()
authorJens Axboe <axboe@fb.com>
Thu, 14 Apr 2016 15:35:44 +0000 (09:35 -0600)
committerJens Axboe <axboe@fb.com>
Tue, 26 Apr 2016 15:51:21 +0000 (09:51 -0600)
commit39171763df38ae7ecc56baf268b3ea726d2ce42f
tree43ff94d0455a66b606b564e5c317c4c4c91206fa
parentcd5cfcf604f96c88db6370a2bd69a43c43b2744e
writeback: track if we're sleeping on progress in balance_dirty_pages()

Note in the bdi_writeback structure if a task is currently being
limited in balance_dirty_pages(), waiting for writeback to
proceed.

Signed-off-by: Jens Axboe <axboe@fb.com>
include/linux/backing-dev-defs.h
mm/backing-dev.c
mm/page-writeback.c