On 04/25/2018 05:55 PM, Matthew Wilcox wrote: > On Fri, Apr 13, 2018 at 05:43:39PM +0530, vinayak menon wrote: >> One such case I have encountered is that of the ION page pool. The page pool >> registers a shrinker. When not in any memory pressure page pool can go high >> and thus cause an mmap to fail when OVERCOMMIT_GUESS is set. I can send >> a patch to account ION page pool pages in NR_INDIRECTLY_RECLAIMABLE_BYTES. > > Why not just account them as NR_SLAB_RECLAIMABLE? I know it's not slab, but > other than that mis-naming, it seems like it'll do the right thing. Hm I think it would be confusing for anyone trying to correlate the number with /proc/slabinfo - the numbers there wouldn't add up.