Messages in this thread | | | Date | Wed, 30 Oct 2019 16:57:20 +0100 | From | Oleg Nesterov <> | Subject | Re: [PATCH] locking/percpu_rwsem: Rewrite to not use rwsem |
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On 10/29, Peter Zijlstra wrote: > > That said, I think cgroups use a variant of percpu-rwsem that wreck rss > on purpose and always take the slowpaths.
I forgot (never understodd) why does Android need this.
I am wondering if it makes any sense to add a config/boot or even runtime knob for cgroup_threadgroup_rwsem.
Oleg.
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