From: Catalin Marinas <catalin.marinas@arm.com>
To: Vadym Kochan <vadym.kochan@plvision.eu>
Cc: Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: Kconfig: allow to change FORCE_MAX_ZONEORDER via custom config
Date: Mon, 16 Mar 2020 17:42:00 +0000 [thread overview]
Message-ID: <20200316174200.GH3005@mbp> (raw)
In-Reply-To: <20200313124558.GA3281@plvision.eu>
On Fri, Mar 13, 2020 at 02:45:58PM +0200, Vadym Kochan wrote:
> On Fri, Mar 13, 2020 at 12:37:41PM +0000, Catalin Marinas wrote:
> > On Fri, Mar 13, 2020 at 01:50:37AM +0200, Vadym Kochan wrote:
> > > Add missing config option name which allows to change it via custom
> > > config.
> >
> > Why? What is your use-case?
>
> I need to allocate buffers bigger than default ZONEORDER, so I tried to
> increase it but it did not work because the config entry has no name.
I try not to make this selectable as we want a single kernel build to
work on all supported hardware. The current values are chosen to allow
huge pages. If you need bigger contiguous allocations, maybe something
like CMA would help.
--
Catalin
prev parent reply other threads:[~2020-03-16 17:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-12 23:50 [PATCH] arm64: Kconfig: allow to change FORCE_MAX_ZONEORDER via custom config Vadym Kochan
2020-03-13 12:37 ` Catalin Marinas
2020-03-13 12:45 ` Vadym Kochan
2020-03-16 17:42 ` Catalin Marinas [this message]
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=20200316174200.GH3005@mbp \
--to=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=vadym.kochan@plvision.eu \
--cc=will@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).