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>
Mon, 18 Apr 2016 01:16:44 +0000 (20:16 -0500)
commitcaf7006a2350dfafce00d3bc4bbfb0200c85fd93
treede57c564b17271b8ce100bc703cb2f6839d7334b
parent0749283a42596f741b4fde411f77a516c1705264
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