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authorDavid S. Miller <davem@davemloft.net>2009-10-13 00:49:09 -0700
committerDavid S. Miller <davem@davemloft.net>2009-10-13 00:49:09 -0700
commitc58543c869606532c2382f027d6466f4672ea756 (patch)
treed097eb82c49ba91bdf506dec11b2e267e070dc6a /arch
parentsparc64: Fix D-cache flushing on swapin from SW devices. (diff)
downloadlinux-dev-c58543c869606532c2382f027d6466f4672ea756.tar.xz
linux-dev-c58543c869606532c2382f027d6466f4672ea756.zip
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/kernel/ldc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index adf5f273868a..cb3c72c45aab 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -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);
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);
if (err)
return err;
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);
if (err) {
free_irq(lp->cfg.rx_irq, lp);