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 majord...@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"d...@kvack.org"> em...@kvack.org </a> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/