In some older kernels setting swappiness fails. This happens even
when nobody tries to configure swappiness from docker UI because
we would still get some default value from host config.
With this we treat -1 value as default value (set implicitly) and skip
the enforcement of swappiness.
However from the docker UI setting an invalid value anything other than
0-100 including -1 should fail. This patch enables that fix in docker UI.
without this fix container creation with invalid value succeeds with a
default value (60) which in incorrect.
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Qiang Huang
Raghavendra K T
unclejack
Michael Crosby