On Wed, 27 Aug 2014, WANG Chao wrote:

Mergeable slab can be changed to unmergeable after tuning its sysfs
interface, for example echo 1 > trace. But the sysfs kobject with the unique
name will be still there.

Hmmm... Merging should be switched off if any debugging features are
enabled. Maybe we need to disable modifying debug options for an active
cache? This could cause other issues as well since the debug options will
then apply to multiple caches.

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