Re: [PATCH 1/3] mm: introduce NR_INDIRECTLY_RECLAIMABLE_BYTES
From: Vlastimil Babka <hidden>
Date: 2018-04-25 16:59:00
Also in:
linux-fsdevel, linux-mm, lkml
On 04/25/2018 05:55 PM, Matthew Wilcox wrote:
On Fri, Apr 13, 2018 at 05:43:39PM +0530, vinayak menon wrote:quoted
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.