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From: Marc Zyngier <maz@kernel.org>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	John Garry <john.garry@huawei.com>,
	Xiongfeng Wang <wangxiongfeng2@huawei.com>,
	David Decotigny <ddecotig@google.com>
Subject: [PATCH v3 3/3] irqchip/gic-v3: Always trust the managed affinity provided by the core code
Date: Tue,  5 Apr 2022 19:50:40 +0100	[thread overview]
Message-ID: <20220405185040.206297-4-maz@kernel.org> (raw)
In-Reply-To: <20220405185040.206297-1-maz@kernel.org>

Now that the core code has been fixed to always give us an affinity
that only includes online CPUs, directly use this affinity when
computing a target CPU.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 drivers/irqchip/irq-gic-v3-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index cd772973114a..2656efd5d2b6 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1624,7 +1624,7 @@ static int its_select_cpu(struct irq_data *d,
 
 		cpu = cpumask_pick_least_loaded(d, tmpmask);
 	} else {
-		cpumask_and(tmpmask, irq_data_get_affinity_mask(d), cpu_online_mask);
+		cpumask_copy(tmpmask, aff_mask);
 
 		/* If we cannot cross sockets, limit the search to that node */
 		if ((its_dev->its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) &&
-- 
2.34.1


  parent reply	other threads:[~2022-04-05 21:38 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-05 18:50 [PATCH v3 0/3] genirq: Managed affinity fixes Marc Zyngier
2022-04-05 18:50 ` [PATCH v3 1/3] genirq/msi: Shutdown managed interrupts with unsatifiable affinities Marc Zyngier
2022-04-10 19:13   ` [tip: irq/core] " tip-bot2 for Marc Zyngier
2022-04-05 18:50 ` [PATCH v3 2/3] genirq: Always limit the affinity to online CPUs Marc Zyngier
2022-04-10 19:12   ` [tip: irq/core] " tip-bot2 for Marc Zyngier
     [not found]   ` <CGME20220413145922eucas1p2dc46908354f4d2b48db79978d086a838@eucas1p2.samsung.com>
2022-04-13 14:59     ` [PATCH v3 2/3] " Marek Szyprowski
2022-04-13 17:26       ` Marc Zyngier
2022-04-14  9:09         ` Marek Szyprowski
2022-04-14 10:35           ` Marc Zyngier
2022-04-14 11:08             ` Marek Szyprowski
2022-04-20  9:13               ` Krzysztof Kozlowski
2022-04-20  9:40                 ` Marc Zyngier
2022-04-20  9:42                   ` Krzysztof Kozlowski
2022-04-20  9:47                 ` Marek Szyprowski
2022-04-20  9:50                   ` Krzysztof Kozlowski
2022-04-14 10:49         ` Thomas Gleixner
2022-04-14 14:14       ` [tip: irq/core] genirq: Take the proposed affinity at face value if force==true tip-bot2 for Marc Zyngier
2022-04-05 18:50 ` Marc Zyngier [this message]
2022-04-10 19:12   ` [tip: irq/core] irqchip/gic-v3: Always trust the managed affinity provided by the core code tip-bot2 for Marc Zyngier
2022-04-07 17:29 ` [PATCH v3 0/3] genirq: Managed affinity fixes John Garry
2022-04-08  1:02   ` Xiongfeng Wang

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