From: Tejun Heo <tj@kernel.org>
Date: Fri, 22 May 2015 21:13:39 +0000 (-0400)
Subject: writeback: attribute stats to the matching per-cgroup bdi_writeback
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~117^2~60
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=910181343774cd5fed95900d9fd2cb4ff7758162;p=pandora-kernel.git

writeback: attribute stats to the matching per-cgroup bdi_writeback

Until now, all WB_* stats were accounted against the root wb
(bdi_writeback), now that multiple wb (bdi_writeback) support is in
place, let's attributes the stats to the respective per-cgroup wb's.

As no filesystem has FS_CGROUP_WRITEBACK yet, this doesn't lead to
visible behavior differences.

v2: Updated for per-inode wb association.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

Reading git-diff-tree failed