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authorYinghai Lu <yinghai@kernel.org>2009-04-27 17:58:23 -0700
committerIngo Molnar <mingo@elte.hu>2009-04-28 12:21:15 +0200
commitfcef5911c7ea89b80d5bfc727f402f37c9eefd57 (patch)
treee37ad2cda662933b01b2ba6e28e570a18ef1edc2 /kernel/irq/handle.c
parent9ec4fa271faf2db3b8e1419c998da1ca6b094eb6 (diff)
downloadop-kernel-dev-fcef5911c7ea89b80d5bfc727f402f37c9eefd57.zip
op-kernel-dev-fcef5911c7ea89b80d5bfc727f402f37c9eefd57.tar.gz
x86/irq: remove leftover code from NUMA_MIGRATE_IRQ_DESC
The original feature of migrating irq_desc dynamic was too fragile and was causing problems: it caused crashes on systems with lots of cards with MSI-X when user-space irq-balancer was enabled. We now have new patches that create irq_desc according to device numa node. This patch removes the leftover bits of the dynamic balancer. [ Impact: remove dead code ] 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: <49F654AF.8000808@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq/handle.c')
-rw-r--r--kernel/irq/handle.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 882c798..3e0cbc4 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -458,11 +458,8 @@ unsigned int __do_IRQ(unsigned int irq)
/*
* No locking required for CPU-local interrupts:
*/
- if (desc->chip->ack) {
+ if (desc->chip->ack)
desc->chip->ack(irq);
- /* get new one */
- desc = irq_remap_to_desc(irq, desc);
- }
if (likely(!(desc->status & IRQ_DISABLED))) {
action_ret = handle_IRQ_event(irq, desc->action);
if (!noirqdebug)
@@ -473,10 +470,8 @@ unsigned int __do_IRQ(unsigned int irq)
}
spin_lock(&desc->lock);
- if (desc->chip->ack) {
+ if (desc->chip->ack)
desc->chip->ack(irq);
- desc = irq_remap_to_desc(irq, desc);
- }
/*
* REPLAY is when Linux resends an IRQ that was dropped earlier
* WAITING is used by probe to mark irqs that are being tested
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