* Greg Thelen [off-list ref] [2011-02-16 21:34:01]:

From: Johannes Weiner <hannes@cmpxchg.org>

For increasing and decreasing per-cpu cgroup usage counters it makes
sense to use signed types, as single per-cpu values might go negative
during updates.  But this is not the case for only-ever-increasing
event counters.

All the counters have been signed 64-bit so far, which was enough to
count events even with the sign bit wasted.

The next patch narrows the usage counters type (on 32-bit CPUs, that
is), though, so break out the event counters and make them unsigned
words as they should have been from the start.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Greg Thelen <redacted>
---

Acked-by: Balbir Singh <redacted>
 
-- 
	Three Cheers,
	Balbir

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