> -----Original Message----- > From: Thomas Gleixner [mailto:t...@linutronix.de] > Sent: Sunday, February 23, 2014 1:40 PM > To: LKML > Cc: Ingo Molnar; Peter Zijlstra; x86; Konrad Rzeszutek Wilk; KY 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.
Thomas, Thank you for cleaning up this code. Regards, K. Y > > Signed-off-by: Thomas Gleixner <t...@linutronix.de> > Cc: x86 <x...@kernel.org> > Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> > Cc: "K. Y. Srinivasan" <k...@microsoft.com> > --- > arch/x86/include/asm/hardirq.h | 3 +++ > arch/x86/kernel/irq.c | 6 ++++++ > 2 files changed, 9 insertions(+) > > Index: tip/arch/x86/include/asm/hardirq.h > ========================================================== > ========= > --- tip.orig/arch/x86/include/asm/hardirq.h > +++ tip/arch/x86/include/asm/hardirq.h > @@ -33,6 +33,9 @@ typedef struct { > #ifdef CONFIG_X86_MCE_THRESHOLD > unsigned int irq_threshold_count; > #endif > +#if defined(CONFIG_HYPERV) || defined(CONFIG_XEN) > + unsigned int irq_hv_callback_count; > +#endif > } ____cacheline_aligned irq_cpustat_t; > > DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat); > 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 > seq_printf(p, "%*s: %10u\n", prec, "ERR", > atomic_read(&irq_err_count)); #if defined(CONFIG_X86_IO_APIC) > seq_printf(p, "%*s: %10u\n", prec, "MIS", > atomic_read(&irq_mis_count)); > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/