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sparc64: Set IRQF_DISABLED on LDC channel IRQs. 

With lots of virtual devices it's easy to generate a lot of
events and chew up the kernel IRQ stack.

Reported-by: hyl <heyongli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2009-10-13 00:49:09 -07:00
parent 1a78cedb99
commit c58543c869
1 changed files with 2 additions and 2 deletions
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4
arch/sparc/kernel/ldc.c
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@ -1242,13 +1242,13 @@ int ldc_bind(struct ldc_channel *lp, const char *name)
snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name); snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name);
err = request_irq(lp->cfg.rx_irq, ldc_rx, err = request_irq(lp->cfg.rx_irq, ldc_rx,
IRQF_SAMPLE_RANDOM | IRQF_SHARED, IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED,
lp->rx_irq_name, lp); lp->rx_irq_name, lp);
if (err) if (err)
return err; return err;
err = request_irq(lp->cfg.tx_irq, ldc_tx, err = request_irq(lp->cfg.tx_irq, ldc_tx,
IRQF_SAMPLE_RANDOM | IRQF_SHARED, IRQF_SAMPLE_RANDOM | IRQF_DISABLED | IRQF_SHARED,
lp->tx_irq_name, lp); lp->tx_irq_name, lp);
if (err) { if (err) {
free_irq(lp->cfg.rx_irq, lp); free_irq(lp->cfg.rx_irq, lp);