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>
Wed, 31 Aug 2016 16:48:06 +0000 (10:48 -0600)
commit9e0cf5dac2130dfad6b04b61f4b58caf8e4b5f15
tree53b7eedd2ec8c6188a01b758474ed36efb56a4c1
parent427e719a362d562e307078e367e73618a2b24426
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