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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 5/8] x86/ioapic: Use apic_ack_irq()
Date: Mon, 04 Jun 2018 17:33:57 +0200
Message-ID: <20180604162224.639011135@linutronix.de> (raw)

[-- Attachment #0: x86-ioapic--Use-apic_ack_irq.patch --]
[-- Type: text/plain, Size: 800 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 directly invoking ack_APIC_irq().

Preparatory change for the real fix

Fixes: dccfe3147b42 ("x86/vector: Simplify vector move cleanup")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
---
 arch/x86/kernel/apic/io_apic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1851,7 +1851,7 @@ static void ioapic_ir_ack_level(struct i
 	 * intr-remapping table entry. Hence for the io-apic
 	 * EOI we use the pin number.
 	 */
-	ack_APIC_irq();
+	apic_ack_irq(irq_data);
 	eoi_ioapic_pin(data->entry.vector, data);
 }
 

             reply index

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 ` Song Liu
2018-06-06 13:33 ` [tip:x86/urgent] " tip-bot for Thomas Gleixner

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