From: Vlastimil Babka <vbabka@suse.cz>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>,
Mel Gorman <mgorman@techsingularity.net>,
Johannes Weiner <hannes@cmpxchg.org>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com>,
Minchan Kim <minchan@kernel.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm/page_alloc: don't reserve ZONE_HIGHMEM for ZONE_MOVABLE request
Date: Fri, 25 Aug 2017 09:56:10 +0200 [thread overview]
Message-ID: <d57eeb5c-d91d-9718-8473-3c6db465b154@suse.cz> (raw)
In-Reply-To: <20170825002031.GD29701@js1304-P5Q-DELUXE>
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.
>
> lkml.kernel.org/r/<20170421013243.GA13966@js1304-desktop>
>
> 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
MOVABLE
(where it has no effect anyway) so the simplest thing is not to expose
it at all.
> Thanks.
>
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2017-08-25 7:57 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-24 5:45 [PATCH] mm/page_alloc: don't reserve ZONE_HIGHMEM for ZONE_MOVABLE request js1304
2017-08-24 9:30 ` Michal Hocko
2017-08-25 0:15 ` Joonsoo Kim
2017-08-25 7:33 ` Michal Hocko
2017-08-24 9:41 ` Vlastimil Babka
2017-08-25 0:20 ` Joonsoo Kim
2017-08-25 7:38 ` Michal Hocko
2017-08-28 0:15 ` Joonsoo Kim
2017-08-28 9:56 ` Michal Hocko
2017-08-29 0:45 ` Joonsoo Kim
2017-08-29 13:39 ` Michal Hocko
2017-08-31 1:45 ` Joonsoo Kim
2017-08-25 7:56 ` Vlastimil Babka [this message]
2017-08-28 0:28 ` Joonsoo Kim
2017-08-28 6:45 ` Vlastimil Babka
2017-08-29 0:36 ` Joonsoo Kim
2017-08-29 7:00 ` Vlastimil Babka
2017-09-06 4:35 js1304
2017-09-06 7:54 ` Vlastimil Babka
2017-09-14 13:24 ` Michal Hocko
2018-04-04 0:24 ` Joonsoo Kim
2018-04-12 12:01 ` Michal Hocko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=d57eeb5c-d91d-9718-8473-3c6db465b154@suse.cz \
--to=vbabka@suse.cz \
--cc=akpm@linux-foundation.org \
--cc=aneesh.kumar@linux.vnet.ibm.com \
--cc=hannes@cmpxchg.org \
--cc=iamjoonsoo.kim@lge.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mgorman@techsingularity.net \
--cc=mhocko@suse.com \
--cc=minchan@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).