From: Tejun Heo <tj@kernel.org>
Date: Fri, 22 May 2015 22:23:29 +0000 (-0400)
Subject: writeback: make __wb_writeout_inc() and hard_dirty_limit() take wb_domaas a parameter
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~117^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7981433ef05e67b1b40740b2c40edbd4476b659;p=pandora-kernel.git

writeback: make __wb_writeout_inc() and hard_dirty_limit() take wb_domaas a parameter

Currently __wb_writeout_inc() and hard_dirty_limit() assume
global_wb_domain; however, cgroup writeback support requires
considering per-memcg wb_domain too.

This patch separates out domain-specific part of __wb_writeout_inc()
into wb_domain_writeout_inc() which takes wb_domain as a parameter and
adds the parameter to hard_dirty_limit().  This will allow these two
functions to handle per-memcg wb_domains.

This patch 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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