[PATCH/RFC] net: Add __napi_sycnhronize() to sync with napi poll

[Herbert Xu]

Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote:
>
> Note: I use msleep_interruptible(1); just like napi_disable(). However
> I'm not too happy that the "hot" loop that results of a pending signal
> here will spin without even a cpu_relax ... what do you guys think would
> be the best way to handle this ?

Well since the loop does not check signals at all, it should
just use msleep.

Granted the process will end up in the D state and contribute
to the load average.  But if this loop executes long enough
for that to be noticed then we've got bigger problems to worry
about.

Cheers,
-- 
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