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| author | Josh Boyer <jwboyer@redhat.com> | 2012-03-16 07:58:36 -0400 |
|---|---|---|
| committer | Josh Boyer <jwboyer@redhat.com> | 2012-03-16 11:07:58 -0400 |
| commit | 6df15dd064669652e0d36826e18975af8ac28085 (patch) | |
| tree | 4b6fe8476255fed9d995017742f4d0bfcc7533e6 /unhandled-irqs-switch-to-polling.patch | |
| parent | 6875c9a8ca919812f98b385990e6d8af43490529 (diff) | |
| download | kernel-6df15dd064669652e0d36826e18975af8ac28085.tar.gz kernel-6df15dd064669652e0d36826e18975af8ac28085.tar.xz kernel-6df15dd064669652e0d36826e18975af8ac28085.zip | |
Fixup irqpoll patch to really not impact machines without ASM108x bridges (rhbz 800520)
WITH FEELING THIS TIME
Diffstat (limited to 'unhandled-irqs-switch-to-polling.patch')
| -rw-r--r-- | unhandled-irqs-switch-to-polling.patch | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/unhandled-irqs-switch-to-polling.patch b/unhandled-irqs-switch-to-polling.patch index 39169ba96..2f25cda6f 100644 --- a/unhandled-irqs-switch-to-polling.patch +++ b/unhandled-irqs-switch-to-polling.patch @@ -174,17 +174,34 @@ Josh Boyer <jwboyer@redhat.com> * functioning device sharing an IRQ with the failing one) */ static void -@@ -302,19 +332,24 @@ void note_interrupt(unsigned int irq, st +@@ -269,6 +299,8 @@ try_misrouted_irq(unsigned int irq, stru + void note_interrupt(unsigned int irq, struct irq_desc *desc, + irqreturn_t action_ret) + { ++ int unhandled_thresh = 999000; ++ + if (desc->istate & IRQS_POLL_INPROGRESS) + return; + +@@ -302,19 +334,31 @@ void note_interrupt(unsigned int irq, st } desc->irq_count++; - if (likely(desc->irq_count < 100000)) -+ if (likely(desc->irq_count < 10)) - return; +- return; ++ if (!irq_poll_and_retry) ++ if (likely(desc->irq_count < 100000)) ++ return; ++ else ++ if (likely(desc->irq_count < 10)) ++ return; desc->irq_count = 0; - if (unlikely(desc->irqs_unhandled > 99900)) { -+ if (unlikely(desc->irqs_unhandled >= 9)) { ++ if (irq_poll_and_retry) ++ unhandled_thresh = 9; ++ ++ if (unlikely(desc->irqs_unhandled >= unhandled_thresh)) { /* - * The interrupt is stuck + * The interrupt might be stuck |