Re: [PATCH -next v2] mm: srcu-ify shrinkers

2015-07-24 Thread Paul Gortmaker
On Tue, Jul 21, 2015 at 8:19 AM, Michal Hocko wrote: > On Thu 16-07-15 13:55:13, 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

Re: [PATCH -next v2] mm: srcu-ify shrinkers

2015-07-21 Thread Michal Hocko
On Thu 16-07-15 13:55:13, 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