Commit fe420d87 authored Jun 16, 2017 by Sebastian Siewior Committed by David S. Miller Jun 20, 2017

net/core: remove explicit do_softirq() from busy_poll_stop()



Since commit 217f6974 ("net: busy-poll: allow preemption in
sk_busy_loop()") there is an explicit do_softirq() invocation after
local_bh_enable() has been invoked.
I don't understand why we need this because local_bh_enable() will
invoke do_softirq() once the softirq counter reached zero and we have
softirq-related work pending.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent bdaf32c3

net/core/dev.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -5206,8 +5206,6 @@ static void busy_poll_stop(struct napi_struct napi, void have_poll_lock)
		if (rc == BUSY_POLL_BUDGET)
		__napi_schedule(napi);
		local_bh_enable();
		if (local_softirq_pending())
		do_softirq();
		}

		void napi_busy_loop(unsigned int napi_id,

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