From: Matt Fleming <matt@codeblueprint.co.uk>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
Rik van Riel <riel@surriel.com>,
Suravee.Suthikulpanit@amd.com, Borislav Petkov <bp@alien8.de>,
Thomas.Lendacky@amd.com, Mel Gorman <mgorman@techsingularity.net>,
Matt Fleming <matt@codeblueprint.co.uk>
Subject: [PATCH 1/2] ia64: Make NUMA select SMP
Date: Thu, 8 Aug 2019 20:53:00 +0100 [thread overview]
Message-ID: <20190808195301.13222-2-matt@codeblueprint.co.uk> (raw)
In-Reply-To: <20190808195301.13222-1-matt@codeblueprint.co.uk>
While it does make sense to allow CONFIG_NUMA and !CONFIG_SMP in
theory, it doesn't make much sense in practice.
Follow other architectures and make CONFIG_NUMA select CONFIG_SMP.
The motivation for this patch is to allow a new NUMA variable to be
initialised in kernel/sched/topology.c.
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
---
arch/ia64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 7468d8e50467..997baba02b70 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -389,6 +389,7 @@ config NUMA
depends on !IA64_HP_SIM && !FLATMEM
default y if IA64_SGI_SN2
select ACPI_NUMA if ACPI
+ select SMP
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
--
2.13.7
next prev parent reply other threads:[~2019-08-08 19:53 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-08 19:52 [PATCH v4 0/2] sched: Improve load balancing on AMD EPYC Matt Fleming
2019-08-08 19:53 ` Matt Fleming [this message]
2019-09-03 8:31 ` [tip: sched/core] arch, ia64: Make NUMA select SMP tip-bot2 for Matt Fleming
2019-08-08 19:53 ` [PATCH v4 2/2] sched/topology: Improve load balancing on AMD EPYC Matt Fleming
2019-09-03 8:31 ` [tip: sched/core] sched/topology: Improve load balancing on AMD EPYC systems tip-bot2 for Matt Fleming
2019-10-07 15:28 ` [PATCH v4 2/2] sched/topology: Improve load balancing on AMD EPYC Guenter Roeck
2019-10-09 12:04 ` Matt Fleming
2019-10-09 12:39 ` Guenter Roeck
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=20190808195301.13222-2-matt@codeblueprint.co.uk \
--to=matt@codeblueprint.co.uk \
--cc=Suravee.Suthikulpanit@amd.com \
--cc=Thomas.Lendacky@amd.com \
--cc=bp@alien8.de \
--cc=linux-kernel@vger.kernel.org \
--cc=mgorman@techsingularity.net \
--cc=peterz@infradead.org \
--cc=riel@surriel.com \
--cc=tony.luck@intel.com \
/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).