Hi, Johannes had a valid point [1] that zone_pages_reclaimable should contain isolated pages as well. This is what the first patch does. While I was there I've realized that the current logic of this function allows for a large overestimation of the reclaimable memory with anon >> nr_swap_pages which would be visible especially when the swap is getting short on space. I think this is a bug and this is fixed in the second patch. I do not have any particular workload which would show significant misbehavior because of the current implementation though. We mostly just happen to scan longer than necessary because zone_reclaimable would keep us looping longer but I still think it makes sense to fix this regardless. [1] http://lkml.kernel.org/r/20151123182447.GF13000%40cmpxchg.org -- 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>