| From 3185f1190b4eef7408c54d8118c0c5c9bbf11e38 Mon Sep 17 00:00:00 2001 |
| From: Ingo Molnar <mingo@elte.hu> |
| Date: Fri, 3 Jul 2009 08:44:44 -0500 |
| Subject: [PATCH] x86: ioapic lock section fix |
| |
| commit 7af93a8c480198ed9cb994ebe4d2d0dc1a235494 in tip. |
| |
| Signed-off-by: Ingo Molnar <mingo@elte.hu> |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c |
| index 07bee33..8d3aa2d 100644 |
| --- a/arch/x86/kernel/apic/io_apic.c |
| +++ b/arch/x86/kernel/apic/io_apic.c |
| @@ -3263,7 +3263,6 @@ unsigned int create_irq_nr(unsigned int irq_want, int node) |
| if (irq_want < nr_irqs_gsi) |
| irq_want = nr_irqs_gsi; |
| |
| - raw_spin_lock_irqsave(&vector_lock, flags); |
| for (new = irq_want; new < nr_irqs; new++) { |
| desc_new = irq_to_desc_alloc_node(new, node); |
| if (!desc_new) { |
| @@ -3275,14 +3274,15 @@ unsigned int create_irq_nr(unsigned int irq_want, int node) |
| if (cfg_new->vector != 0) |
| continue; |
| |
| + raw_spin_lock_irqsave(&vector_lock, flags); |
| desc_new = move_irq_desc(desc_new, node); |
| cfg_new = desc_new->chip_data; |
| |
| if (__assign_irq_vector(new, cfg_new, apic->target_cpus()) == 0) |
| irq = new; |
| + raw_spin_unlock_irqrestore(&vector_lock, flags); |
| break; |
| } |
| - raw_spin_unlock_irqrestore(&vector_lock, flags); |
| |
| if (irq > 0) |
| dynamic_irq_init_keep_chip_data(irq); |
| -- |
| 1.7.1.1 |
| |
