From: Tejun Heo <tj@kernel.org>
Date: Fri, 22 May 2015 22:23:22 +0000 (-0400)
Subject: writeback: move global_dirty_limit into wb_domain
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~117^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dcc25ae76eb7b8ff883eaaab57e30e8f2f085be3;p=pandora-kernel.git

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>
---

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