Commit 56b581ea authored Apr 27, 2009 by Yinghai Lu Committed by Ingo Molnar Apr 28, 2009

irq: make ht irq_desc more numa aware

Try to get irq_desc on the same node as create_irq_nr().

[ Impact: optimization, make HT IRQs more NUMA-aware ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
LKML-Reference: <49F655B6.8020109@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent d047f53a

drivers/pci/htirq.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -98,6 +98,7 @@ int __ht_create_irq(struct pci_dev dev, int idx, ht_irq_update_t update)
		int max_irq;
		int pos;
		int irq;
		int node;

		pos = pci_find_ht_capability(dev, HT_CAPTYPE_IRQ);
		if (!pos)
		@@ -125,7 +126,8 @@ int __ht_create_irq(struct pci_dev dev, int idx, ht_irq_update_t update)
		cfg->msg.address_lo = 0xffffffff;
		cfg->msg.address_hi = 0xffffffff;

		irq = create_irq();
		node = dev_to_node(&dev->dev);
		irq = create_irq_nr(0, node);

		if (irq <= 0) {
		kfree(cfg);