From: "tip-bot2 for Valentin Schneider" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Valentin Schneider <valentin.schneider@arm.com>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>, x86 <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [tip: sched/core] sched/topology: Mark SD_NUMA as SDF_NEEDS_GROUPS
Date: Wed, 19 Aug 2020 14:02:41 -0000 [thread overview]
Message-ID: <159784576167.3192.9507446083732831397.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20200817113003.20802-17-valentin.schneider@arm.com>
The following commit has been merged into the sched/core branch of tip:
Commit-ID: 5f4a1c4ea44728aa80be21dbf3a0469b5ca81d88
Gitweb: https://git.kernel.org/tip/5f4a1c4ea44728aa80be21dbf3a0469b5ca81d88
Author: Valentin Schneider <valentin.schneider@arm.com>
AuthorDate: Mon, 17 Aug 2020 12:30:02 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Wed, 19 Aug 2020 10:49:50 +02:00
sched/topology: Mark SD_NUMA as SDF_NEEDS_GROUPS
There would be no point in preserving a sched_domain with a single group
just because it has this flag set. Add it to SD_DEGENERATE_GROUPS_MASK.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: https://lore.kernel.org/r/20200817113003.20802-17-valentin.schneider@arm.com
---
include/linux/sched/sd_flags.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/sched/sd_flags.h b/include/linux/sched/sd_flags.h
index 29af5f0..34b21e9 100644
--- a/include/linux/sched/sd_flags.h
+++ b/include/linux/sched/sd_flags.h
@@ -151,5 +151,6 @@ SD_FLAG(SD_OVERLAP, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS)
* Cross-node balancing
*
* SHARED_PARENT: Set for all NUMA levels above NODE.
+ * NEEDS_GROUPS: No point in preserving domain if it has a single group.
*/
-SD_FLAG(SD_NUMA, SDF_SHARED_PARENT)
+SD_FLAG(SD_NUMA, SDF_SHARED_PARENT | SDF_NEEDS_GROUPS)
next prev parent reply other threads:[~2020-08-19 14:03 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-17 11:29 [PATCH v6 00/17] sched: Instrument sched domain flags Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 01/17] ARM, sched/topology: Remove SD_SHARE_POWERDOMAIN Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 02/17] ARM: Revert back to default scheduler topology Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] ARM, sched/topology: " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 03/17] sched/topology: Split out SD_* flags declaration to its own file Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 04/17] sched/topology: Define and assign sched_domain flag metadata Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 05/17] sched/topology: Verify SD_* flags setup when sched_debug is on Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 06/17] sched/debug: Output SD flag names rather than their values Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 07/17] sched/topology: Introduce SD metaflag for flags needing > 1 groups Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 08/17] sched/topology: Use prebuilt SD flag degeneration mask Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 09/17] sched/topology: Remove SD_SERIALIZE degeneration special case Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 10/17] sched/topology: Propagate SD_ASYM_CPUCAPACITY upwards Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 11/17] sched/topology: Mark SD_PREFER_SIBLING as SDF_NEEDS_GROUPS Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 12/17] sched/topology: Mark SD_BALANCE_WAKE " Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:29 ` [PATCH v6 13/17] sched/topology: Mark SD_SERIALIZE " Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:30 ` [PATCH v6 14/17] sched/topology: Mark SD_ASYM_PACKING " Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:30 ` [PATCH v6 15/17] sched/topology: Mark SD_OVERLAP " Valentin Schneider
2020-08-19 14:02 ` [tip: sched/core] " tip-bot2 for Valentin Schneider
2020-08-17 11:30 ` [PATCH v6 16/17] sched/topology: Mark SD_NUMA " Valentin Schneider
2020-08-19 14:02 ` tip-bot2 for Valentin Schneider [this message]
2020-08-17 11:30 ` [PATCH v6 17/17] sched/topology: Expand use of SD_DEGENERATE_GROUPS_MASK to flags not needing groups Valentin Schneider
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