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| author | Sebastian Siewior <bigeasy@linutronix.de> | 2017-06-16 19:24:00 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-20 13:09:33 -0400 |
| commit | fe420d87bbc234015b4195dd239b7d3052b140ea (patch) | |
| tree | 67deb0d30ebb3f7149e0556158d2318a5c8170ce /net/core | |
| parent | bdaf32c3ced3d111b692f0af585f880f82d686c5 (diff) | |
| download | lwn-fe420d87bbc234015b4195dd239b7d3052b140ea.tar.gz lwn-fe420d87bbc234015b4195dd239b7d3052b140ea.zip | |
net/core: remove explicit do_softirq() from busy_poll_stop()
Since commit 217f69743681 ("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>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 6d60149287a1..7243421c9783 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -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, |