]> git.baikalelectronics.ru Git - kernel.git/commit
writeback: move global_dirty_limit into wb_domain
authorTejun Heo <tj@kernel.org>
Fri, 22 May 2015 22:23:22 +0000 (18:23 -0400)
committerJens Axboe <axboe@fb.com>
Tue, 2 Jun 2015 14:38:12 +0000 (08:38 -0600)
commiteca184b8c658e5a30e7558433e6acfa1c2a02259
tree7fb1d01278ad2b16a1c21ead3e567a3bb7d00c25
parent69523d66f9a6b1538e7f7bdc5362de3edbf8771e
writeback: move global_dirty_limit into wb_domain

This patch is a part of the series to define wb_domain which
represents a domain that wb's (bdi_writeback's) belong to and are
measured against each other in.  This will enable IO backpressure
propagation for cgroup writeback.

global_dirty_limit exists to regulate the global dirty threshold which
is a property of the wb_domain.  This patch moves hard_dirty_limit,
dirty_lock, and update_time into wb_domain.

This is pure reorganization and doesn't introduce any behavioral
changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
fs/fs-writeback.c
include/linux/writeback.h
include/trace/events/writeback.h
mm/page-writeback.c