Messages in this thread | | | Date | Mon, 30 Sep 2013 10:03:51 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH, v2] anon_vmas: Convert the rwsem to an rwlock_t |
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On Sat, 28 Sep 2013 21:52:07 +0200 Ingo Molnar <mingo@kernel.org> wrote:
> Here's a an almost totally untested patch to convert the anon vma lock to > an rwlock_t.
Both the anon vma lock and i_mmap_lock used to be spinlocks. Peter turned them both into sleeping locks in this series: https://lkml.org/lkml/2011/4/1/141
Later, Ingo turned the anon vma lock from an rwsem into a mutex (https://lkml.org/lkml/2012/12/1/141) to permit a scalability fix (https://lkml.org/lkml/2012/12/1/142).
Let's convince ourselves that we won't be undoing things which will return to bite us?
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