APPLIED: [Xenial][SRU][PATCH] UBUNTU: SAUCE(no-up): If zone is so small that watermarks are the same, stop zone balance.

[Seth Forshee]

On Wed, Oct 12, 2016 at 09:13:35AM +0800, Gavin Guo wrote:
> BugLink: http://bugs.launchpad.net/bugs/1518457
> 
> On an AWS t2.micro instance (Xeon E5-2670, 991MiB of memory).
> Occasionally (about once a day), kswapd0 falls into a busy loop and
> spins on 100% CPU usage indefinitely. Reject to do the zone balance
> when the memory is too small.
> 
> Signed-off-by: Dan Streetman <dan.streetman at canonical.com>
> Signed-off-by: Gavin Guo <gavin.guo at canonical.com>

Applied to xenial and yakkety.