From 7f95ec9e4c12fd067febfd57532da1166d75d858 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:09 -0700 Subject: x86: move kstat_irqs from kstat to irq_desc based on Eric's patch ... together mold it with dyn_array for irq_desc, will allcate kstat_irqs for nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already. v2: make sure system without generic_hardirqs works they don't have irq_desc v3: fix merging v4: [mingo@elte.hu] fix typo [ mingo@elte.hu ] irq: build fix fix: arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow': arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs' Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/xen/spinlock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/xen') diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c index dd71e3a021cd..bb6bc721b13d 100644 --- a/arch/x86/xen/spinlock.c +++ b/arch/x86/xen/spinlock.c @@ -241,7 +241,7 @@ static noinline int xen_spin_lock_slow(struct raw_spinlock *lock, bool irq_enabl ADD_STATS(taken_slow_spurious, !xen_test_irq_pending(irq)); } while (!xen_test_irq_pending(irq)); /* check for spurious wakeups */ - kstat_this_cpu.irqs[irq]++; + kstat_irqs_this_cpu(irq_to_desc(irq))++; out: raw_local_irq_restore(flags); -- cgit v1.2.3 From bf9d3cf73e8caf0b3ae0b7f508a9f251536f5ff4 Mon Sep 17 00:00:00 2001 From: Alex Nixon Date: Mon, 18 Aug 2008 22:17:08 -0700 Subject: xen: Fix bug `do_IRQ: cannot handle IRQ -1 vector 0x6 cpu 1' Following commit 9c3f2468d8339866d9ef6a25aae31a8909c6be0d, do_IRQ() looks up the IRQ number in the per-cpu variable vector_irq. This commit makes Xen initialise an identity vector_irq map for both X86_32 and X86_64. Signed-off-by: Alex Nixon Acked-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- arch/x86/xen/irq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/x86/xen') diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c index 28b85ab8422e..bb042608c602 100644 --- a/arch/x86/xen/irq.c +++ b/arch/x86/xen/irq.c @@ -21,7 +21,6 @@ void xen_force_evtchn_callback(void) static void __init __xen_init_IRQ(void) { -#ifdef CONFIG_X86_64 int i; /* Create identity vector->irq map */ @@ -31,7 +30,6 @@ static void __init __xen_init_IRQ(void) for_each_possible_cpu(cpu) per_cpu(vector_irq, cpu)[i] = i; } -#endif /* CONFIG_X86_64 */ xen_init_IRQ(); } -- cgit v1.2.3 From d6c88a507ef0b6afdb013cba4e7804ba7324d99a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 15 Oct 2008 15:27:23 +0200 Subject: genirq: revert dynarray Revert the dynarray changes. They need more thought and polishing. Signed-off-by: Thomas Gleixner --- arch/x86/xen/spinlock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/xen') diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c index bb6bc721b13d..5601506f2dd9 100644 --- a/arch/x86/xen/spinlock.c +++ b/arch/x86/xen/spinlock.c @@ -241,7 +241,7 @@ static noinline int xen_spin_lock_slow(struct raw_spinlock *lock, bool irq_enabl ADD_STATS(taken_slow_spurious, !xen_test_irq_pending(irq)); } while (!xen_test_irq_pending(irq)); /* check for spurious wakeups */ - kstat_irqs_this_cpu(irq_to_desc(irq))++; + kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq)); out: raw_local_irq_restore(flags); -- cgit v1.2.3