Re: [RFC PATCH 0/5] kmalloc-reclaimable caches

[Vlastimil Babka]

On 05/24/2018 02:13 PM, Roman Gushchin wrote:
> On Thu, May 24, 2018 at 01:00:06PM +0200, Vlastimil Babka wrote:
>> Hi,
>>
>> - I haven't find any other obvious users for reclaimable kmalloc (yet)
> 
> As I remember, ION memory allocator was discussed related to this theme:
> https://lkml.org/lkml/2018/4/24/1288

+CC Laura

Yeah ION added the NR_INDIRECTLY_RECLAIMABLE_BYTES handling, which is
adjusted to page granularity in patch 4. I'm not sure if it should use
kmalloc as it seems to be allocating order-X pages, where kmalloc/slab
just means extra overhead. But maybe if it doesn't allocate/free too
frequently, it could work?

>> I did a superset as IIRC somebody suggested that in the older threads or at LSF.
> 
> This looks nice to me!
> 
> Thanks!
>