diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2008-11-07 13:58:46 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-11-09 22:23:54 +0100 |
| commit | 612e3684c1b7752d2890510e4f90115fd1eb2afb (patch) | |
| tree | 77d8b8de0a4ae3805cb38bfe60ed2b107fc87cad /kernel/irq | |
| parent | genirq: keep affinities set from userspace across free/request_irq() (diff) | |
| download | linux-dev-612e3684c1b7752d2890510e4f90115fd1eb2afb.tar.xz linux-dev-612e3684c1b7752d2890510e4f90115fd1eb2afb.zip | |
genirq: fix the affinity setting in setup_irq
The affinity setting in setup irq is called before the NO_BALANCING
flag is checked and might therefore override affinity settings from the
calling code with the default setting.
Move the NO_BALANCING flag check before the call to the affinity
setting.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/manage.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 634a2a955104..948a22a2c013 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -123,7 +123,7 @@ int do_irq_select_affinity(unsigned int irq, struct irq_desc *desc) * Preserve an userspace affinity setup, but make sure that * one of the targets is online. */ - if (desc->status & IRQ_AFFINITY_SET) { + if (desc->status & (IRQ_AFFINITY_SET | IRQ_NO_BALANCING)) { if (cpus_intersects(desc->affinity, cpu_online_map)) mask = desc->affinity; else @@ -483,6 +483,10 @@ __setup_irq(unsigned int irq, struct irq_desc * desc, struct irqaction *new) /* Undo nested disables: */ desc->depth = 1; + /* Exclude IRQ from balancing if requested */ + if (new->flags & IRQF_NOBALANCING) + desc->status |= IRQ_NO_BALANCING; + /* Set default affinity mask once everything is setup */ do_irq_select_affinity(irq, desc); @@ -497,10 +501,6 @@ __setup_irq(unsigned int irq, struct irq_desc * desc, struct irqaction *new) *p = new; - /* Exclude IRQ from balancing */ - if (new->flags & IRQF_NOBALANCING) - desc->status |= IRQ_NO_BALANCING; - /* Reset broken irq detection when installing new handler */ desc->irq_count = 0; desc->irqs_unhandled = 0; |