linux-kernel - Re: [PATCH] once: switch to new jump label API

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Date:   Tue, 22 Aug 2017 14:44:41 -0400
From:   Hannes Frederic Sowa <hannes@...essinduktion.org>
To:     Eric Biggers <ebiggers3@...il.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jason Baron <jbaron@...mai.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Eric Biggers <ebiggers@...gle.com>
Subject: Re: [PATCH] once: switch to new jump label API

Eric Biggers <ebiggers3@...il.com> writes:

> From: Eric Biggers <ebiggers@...gle.com>
>
> Switch the DO_ONCE() macro from the deprecated jump label API to the new
> one.  The new one is more readable, and for DO_ONCE() it also makes the
> generated code more icache-friendly: now the one-time initialization
> code is placed out-of-line at the jump target, rather than at the inline
> fallthrough case.
>
> Signed-off-by: Eric Biggers <ebiggers@...gle.com>

Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org.

Thanks!