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From: "tip-bot2 for Matt Fleming" <>
Cc: Matt Fleming <>,
	"Peter Zijlstra (Intel)" <>,
	Borislav Petkov <>,
	Linus Torvalds <>,
	Mel Gorman <>,
	Rik van Riel <>,,
	Thomas Gleixner <>,, Tony Luck <>,
	Ingo Molnar <>,
Subject: [tip: sched/core] arch, ia64: Make NUMA select SMP
Date: Tue, 03 Sep 2019 08:31:24 -0000
Message-ID: <156749948430.12871.13896634861148973044.tip-bot2@tip-bot2> (raw)
In-Reply-To: <>

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     a2cbfd46559e809c8165773b7fe8afa058b35414
Author:        Matt Fleming <>
AuthorDate:    Thu, 08 Aug 2019 20:53:00 +01:00
Committer:     Ingo Molnar <>
CommitterDate: Tue, 03 Sep 2019 09:17:36 +02:00

arch, ia64: Make NUMA select SMP

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 <>
Signed-off-by: Peter Zijlstra (Intel) <>
Cc: Borislav Petkov <>
Cc: Linus Torvalds <>
Cc: Mel Gorman <>
Cc: Peter Zijlstra <>
Cc: Rik van Riel <>
Cc: Thomas Gleixner <>
Cc: Tony Luck <>
Signed-off-by: Ingo Molnar <>
 arch/ia64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 7468d8e..997baba 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
 	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 	  Access).  This option is for configuring high-end multiprocessor

  reply index

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 ` [PATCH 1/2] ia64: Make NUMA select SMP Matt Fleming
2019-09-03  8:31   ` tip-bot2 for Matt Fleming [this message]
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

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