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Message-Id: <1305276473-14780-9-git-send-email-gthelen@google.com>
Date: Fri, 13 May 2011 01:47:47 -0700
From: Greg Thelen <gthelen@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
containers@...ts.osdl.org, linux-fsdevel@...r.kernel.org,
Andrea Righi <arighi@...eler.com>,
Balbir Singh <balbir@...ux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
Minchan Kim <minchan.kim@...il.com>,
Johannes Weiner <hannes@...xchg.org>,
Ciju Rajan K <ciju@...ux.vnet.ibm.com>,
David Rientjes <rientjes@...gle.com>,
Wu Fengguang <fengguang.wu@...el.com>,
Vivek Goyal <vgoyal@...hat.com>,
Dave Chinner <david@...morbit.com>,
Greg Thelen <gthelen@...gle.com>
Subject: [RFC][PATCH v7 08/14] writeback: add memcg fields to writeback_control
Add writeback_control fields to differentiate between bdi-wide and
per-cgroup writeback. Cgroup writeback is also able to differentiate
between writing inodes isolated to a particular cgroup and inodes shared
by multiple cgroups.
Signed-off-by: Greg Thelen <gthelen@...gle.com>
---
include/linux/writeback.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d10d133..4f5c0d2 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -47,6 +47,8 @@ struct writeback_control {
unsigned for_reclaim:1; /* Invoked from the page allocator */
unsigned range_cyclic:1; /* range_start is cyclic */
unsigned more_io:1; /* more io to be dispatched */
+ unsigned for_cgroup:1; /* enable cgroup writeback */
+ unsigned shared_inodes:1; /* write inodes spanning cgroups */
};
/*
--
1.7.3.1
--
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