linux-kernel - Re: [PATCH 1/2] jump_labels: API for flushing deferred jump label updates

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Message-ID: <20161219145819.GJ3107@twins.programming.kicks-ass.net>
Date:   Mon, 19 Dec 2016 15:58:19 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     David Matlack <dmatlack@...gle.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        pbonzini@...hat.com, rkrcmar@...hat.com, haokexin@...il.com,
        mpe@...erman.id.au, yongjun_wei@...ndmicro.com.cn,
        rusty@...tcorp.com.au, jbaron@...mai.com
Subject: Re: [PATCH 1/2] jump_labels: API for flushing deferred jump label
 updates

On Fri, Dec 16, 2016 at 02:30:35PM -0800, David Matlack wrote:
> Modules that use static_key_deferred need a way to synchronize with
> any delayed work that is still pending when the module is unloaded.
> Introduce static_key_deferred_flush() which flushes any pending
> jump label updates.

Makes sense I suppose.

It also appears I forgot to provide new style APIs for this
functionality as I completely forgot about it for it lives in its own
file :-/

In any case,

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>