From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755078AbaIVVEj (ORCPT ); Mon, 22 Sep 2014 17:04:39 -0400 Received: from g4t3425.houston.hp.com ([15.201.208.53]:10087 "EHLO g4t3425.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754935AbaIVVEh convert rfc822-to-8bit (ORCPT ); Mon, 22 Sep 2014 17:04:37 -0400 From: "Elliott, Robert (Server Storage)" To: Thomas Gleixner , LKML CC: Ingo Molnar , Peter Zijlstra , x86 , Konrad Rzeszutek Wilk , "K. Y. Srinivasan" Subject: RE: [patch 22/26] x86: Add proper vector accounting for HyperV Thread-Topic: [patch 22/26] x86: Add proper vector accounting for HyperV Thread-Index: AQHP1qe4bKciWkPPsk6mOx38tYrEmZwNosVg Date: Mon, 22 Sep 2014 21:03:57 +0000 Message-ID: <94D0CD8314A33A4D9D801C0FE68B402958C91F27@G9W0745.americas.hpqcorp.net> References: <20140223212703.511977310@linutronix.de> <20140223212738.681855582@linutronix.de> In-Reply-To: <20140223212738.681855582@linutronix.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [16.210.48.37] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > -----Original Message----- > From: linux-kernel-owner@vger.kernel.org [mailto:linux-kernel- > owner@vger.kernel.org] On Behalf Of Thomas Gleixner > Sent: Sunday, 23 February, 2014 3:40 PM > To: LKML > Cc: Ingo Molnar; Peter Zijlstra; x86; Konrad Rzeszutek Wilk; K. Y. Srinivasan > Subject: [patch 22/26] x86: Add proper vector accounting for HyperV > > HyperV abuses a device interrupt to account for the > HYPERVISOR_CALLBACK_VECTOR. > > Provide proper accounting as we have for the other vectors as well. ... > Index: tip/arch/x86/kernel/irq.c > =================================================================== > --- tip.orig/arch/x86/kernel/irq.c > +++ tip/arch/x86/kernel/irq.c > @@ -125,6 +125,12 @@ int arch_show_interrupts(struct seq_file > seq_printf(p, "%10u ", per_cpu(mce_poll_count, j)); > seq_printf(p, " Machine check polls\n"); > #endif > +#if defined(CONFIG_HYPERV) || defined(CONFIG_XEN) > + seq_printf(p, "%*s: ", prec, "THR"); > + for_each_online_cpu(j) > + seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count); > + seq_printf(p, " Hypervisor callback interrupts\n"); > +#endif ... Should this have used a different short string than "THR", which is already used for "Threshold APIC interrupts"? --- Rob Elliott HP Server Storage