linux-kernel - Re: [PATCH 1/4] jump_label: make static_key_enabled() work on static_key

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Message-ID: <20150917152752.GD7205@mtj.duckdns.org>
Date:	Thu, 17 Sep 2015 11:27:52 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	lizefan@...wei.com, hannes@...xchg.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-team@...com,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/4] jump_label: make static_key_enabled() work on
 static_key_true/false types too

On Thu, Sep 17, 2015 at 10:59:57AM +0200, Peter Zijlstra wrote:
> On Tue, Sep 15, 2015 at 09:51:22PM -0400, Tejun Heo wrote:
> > static_key_enabled() can be used on struct static_key but not on its
> > wrapper types static_key_true and static_key_false.  The function is
> > useful for debugging and management of static keys.  Update it so that
> > it can be used for the wrapper types too.
> > 
> > Signed-off-by: Tejun Heo <tj@...nel.org>
> > Cc: Peter Zijlstra <peterz@...radead.org>
> > Cc: Andrew Morton <akpm@...ux-foundation.org>
> > ---
> > Hello,
> > 
> > If this patch is acceptable, please let me know how it should be
> > routed.
> > 
> 
> Yeah, no problem with this, I'm assuming there's dependencies in the
> patches you didn't send me? 

Yeap, later patches add static_keys for testing whether a controller
is enabled and whether it's on the new or old hierarchy and management
path in cgroup core needs to index the keys and test them.

Thanks.

-- 
tejun
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