Re: [PATCH v5 6/7] mm: reparent slab memory on cgroup removal

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On Tue, May 28, 2019 at 07:58:17PM +0000, Roman Gushchin wrote:
> It looks like outstanding questions are:
> 1) synchronization around the dying flag
> 2) removing CONFIG_SLOB in 2/7
> 3) early sysfs_slab_remove()
> 4) mem_cgroup_from_kmem in 7/7
> 
> Please, let me know if I missed anything.

Also, I think that it might be possible to get rid of RCU call in kmem
cache destructor, because the cgroup subsystem already handles it and
we could probably piggyback - see my comment to 5/7. Not sure if it's
really necessary, since we already have RCU in SLUB, but worth looking
into, I guess, as it might simplify the code a bit.



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