Hello, Christoph. On Tue, Apr 09, 2013 at 02:28:06PM +0000, Christoph Lameter wrote: > On Tue, 9 Apr 2013, Joonsoo Kim wrote: > > > Currently, freed pages via rcu is not counted for reclaimed_slab, because > > it is freed in rcu context, not current task context. But, this free is > > initiated by this task, so counting this into this task's reclaimed_slab > > is meaningful to decide whether we continue reclaim, or not. > > So change code to count these pages for this task's reclaimed_slab. > > slab->reclaim_state guides the reclaim actions in vmscan.c. With this > patch slab->reclaim_state could get quite a high value without new pages being > available for allocation. slab->reclaim_state will only be updated > when the RCU period ends. Okay. In addition, there is a little place who use SLAB_DESTROY_BY_RCU. I will drop this patch[2/3] and [3/3] for next spin. Thanks. > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@xxxxxxxxx. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>