On Tue, Jun 11, 2019 at 04:18:10PM -0700, Roman Gushchin wrote: > Currently the memcg_params.dying flag and the corresponding > workqueue used for the asynchronous deactivation of kmem_caches > is synchronized using the slab_mutex. > > It makes impossible to check this flag from the irq context, > which will be required in order to implement asynchronous release > of kmem_caches. > > So let's switch over to the irq-save flavor of the spinlock-based > synchronization. > > Signed-off-by: Roman Gushchin <guro@xxxxxx> Acked-by: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>