From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>,
Dmitry Safonov <0x7f454c46@gmail.com>,
Tariq Toukan <tariqt@mellanox.com>,
Song Liu <liu.song.a23@gmail.com>, Joerg Roedel <jroedel@suse.de>,
Mike Travis <mike.travis@hpe.com>,
stable@vger.kernel.org
Subject: [patch 6/8] x86/platform/uv: Use apic_ack_irq()
Date: Mon, 04 Jun 2018 17:33:58 +0200 [thread overview]
Message-ID: <20180604162224.721691398@linutronix.de> (raw)
[-- Attachment #1: x86-platform-uv--Use-apic_ack_irq.patch --]
[-- Type: text/plain, Size: 1180 bytes --]
To address the EBUSY fail of interrupt affinity settings in case that the
previous setting has not been cleaned up yet, use the new apic_ack_irq()
function instead of the special uv_ack_apic() implementation which is
merily a wrapper around ack_APIC_irq().
Preparatory change for the real fix
Fixes: dccfe3147b42 ("x86/vector: Simplify vector move cleanup")
Reported-by: Song Liu <liu.song.a23@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
---
arch/x86/platform/uv/uv_irq.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -47,11 +47,6 @@ static void uv_program_mmr(struct irq_cf
static void uv_noop(struct irq_data *data) { }
-static void uv_ack_apic(struct irq_data *data)
-{
- ack_APIC_irq();
-}
-
static int
uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask,
bool force)
@@ -73,7 +68,7 @@ static struct irq_chip uv_irq_chip = {
.name = "UV-CORE",
.irq_mask = uv_noop,
.irq_unmask = uv_noop,
- .irq_eoi = uv_ack_apic,
+ .irq_eoi = apic_ack_irq,
.irq_set_affinity = uv_set_irq_affinity,
};
next reply other threads:[~2018-06-04 16:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-04 15:33 Thomas Gleixner [this message]
2018-06-05 7:13 ` [patch 6/8] x86/platform/uv: Use apic_ack_irq() Song Liu
2018-06-06 13:33 ` [tip:x86/urgent] " tip-bot for Thomas Gleixner
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