On Tue, Mar 01, 2016 at 07:56:30PM +0300, Vladimir Davydov wrote: > From: Vladimir Davydov <[email protected]> > Subject: [PATCH] cgroup: reset css on destruction > > An associated css can be around for quite a while after a cgroup > directory has been removed. In general, it makes sense to reset it to > defaults so as not to worry about any remnants. For instance, memory > cgroup needs to reset memory.low, otherwise pages charged to a dead > cgroup might never get reclaimed. There's ->css_reset callback, which > would fit perfectly for the purpose. Currently, it's only called when a > subsystem is disabled in the unified hierarchy and there are other > subsystems dependant on it. Let's call it on css destruction as well. > > Suggested-by: Johannes Weiner <[email protected]> > Signed-off-by: Vladimir Davydov <[email protected]>
Applied to cgroup/for-4.6. Thanks. -- tejun
