Messages in this thread | | | Subject | Re: [PATCH 0/4] per anon_vma lock and turn anon_vma rwsem lock to rwlock_t | From | Davidlohr Bueso <> | Date | Fri, 01 Nov 2013 10:49:47 -0700 |
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On Fri, 2013-11-01 at 09:01 +0100, Ingo Molnar wrote: > * Yuanhan Liu <yuanhan.liu@linux.intel.com> wrote: > > > Patch 1 turns locking the anon_vma's root to locking itself to let it be > > a per anon_vma lock, which would reduce contentions. > > > > In the same time, lock range becomes quite small then, which is bascially > > a call of anon_vma_interval_tree_insert(). Patch 2 turn rwsem to rwlock_t. > > It's a patch made from Ingo, I just made some change to let it apply based on > > patch 1.
Andrea's last input from this kind of conversion is that it cannot be done (at least yet): https://lkml.org/lkml/2013/9/30/53
Thanks, Davidlohr
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