[lkml]   [2017]   [Aug]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] mm/page_alloc: don't reserve ZONE_HIGHMEM for ZONE_MOVABLE request
On 08/25/2017 02:20 AM, Joonsoo Kim wrote:
> On Thu, Aug 24, 2017 at 11:41:58AM +0200, Vlastimil Babka wrote:
> Hmm, this is already pointed by Minchan and I have answered that.
> If you have a better idea, please let me know.

My idea is that size of sysctl_lowmem_reserve_ratio is ZONE_NORMAL+1 and
it has no entries for zones > NORMAL. The
setup_per_zone_lowmem_reserve() is adjusted to only set
lower_zone->lowmem_reserve[j] for idx <= ZONE_NORMAL.

I can't imagine somebody would want override the ratio for HIGHMEM or
(where it has no effect anyway) so the simplest thing is not to expose
it at all.

> Thanks.

 \ /
  Last update: 2017-08-25 09:57    [W:0.074 / U:2.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site