On Tue, Mar 01, 2016 at 07:56:30PM +0300, Vladimir Davydov wrote: > From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> > 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 <hannes@xxxxxxxxxxx> > Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> It's already in a git tree, but FWIW Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>