On Wed, 2015-06-17 at 09:47 +0200, Michal Hocko wrote:
> On the other hand using srcu is a neat idea. Shrinkers only need the
> existence guarantee when racing with unregister. Register even shouldn't
> be that interesting because such a shrinker wouldn't have much to
> shrink anyway so we can safe
On Mon 15-06-15 13:03:22, Davidlohr Bueso wrote:
> The shrinker_rwsem is a global lock that protects the shrinker_list,
> serializing a shrinking call with register/unregistering the shrinker
> itself. As such, this lock is taken mostly for reading. In the unlikely
> case that the the list is being
The shrinker_rwsem is a global lock that protects the shrinker_list,
serializing a shrinking call with register/unregistering the shrinker
itself. As such, this lock is taken mostly for reading. In the unlikely
case that the the list is being modified, we simply return indicating
we want to iterate
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