[PATCH 1/7] memcg: update cgroup memory document

[Sha Zhengju]

From: Sha Zhengju <handai.szj@xxxxxxxxxx>

Document cgroup dirty/writeback memory statistics.

The implementation for these new interface routines come in a series
of following patches.

Signed-off-by: Sha Zhengju <handai.szj@xxxxxxxxxx>
---
 Documentation/cgroups/memory.txt |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index dd88540..24d7e3c 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -420,6 +420,8 @@ pgpgin		- # of charging events to the memory cgroup. The charging
 pgpgout		- # of uncharging events to the memory cgroup. The uncharging
 		event happens each time a page is unaccounted from the cgroup.
 swap		- # of bytes of swap usage
+dirty		- # of bytes that are waiting to get written back to the disk.
+writeback	- # of bytes that are actively being written back to the disk.
 inactive_anon	- # of bytes of anonymous memory and swap cache memory on
 		LRU list.
 active_anon	- # of bytes of anonymous and swap cache memory on active
-- 
1.7.1

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