[PATCH] net: Handle threadirqs in __napi_schedule_irqoff
From: Sean Anderson <sean.anderson@linux.dev>
Date: 2024-09-13 15:10:03
Also in:
lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The threadirqs kernel parameter can be used to force threaded IRQs even on non-PREEMPT_RT kernels. Use force_irqthreads to determine if we can skip disabling local interrupts. This defaults to false on regular kernels, and is always true on PREEMPT_RT kernels. Signed-off-by: Sean Anderson <sean.anderson@linux.dev> --- net/core/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/dev.c b/net/core/dev.c
index 1e740faf9e78..112e871bc2b0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c@@ -6202,7 +6202,7 @@ EXPORT_SYMBOL(napi_schedule_prep); */ void __napi_schedule_irqoff(struct napi_struct *n) { - if (!IS_ENABLED(CONFIG_PREEMPT_RT)) + if (!force_irqthreads()) ____napi_schedule(this_cpu_ptr(&softnet_data), n); else __napi_schedule(n);
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2.35.1.1320.gc452695387.dirty