linux-kernel - Re: [PATCH 2/2 v6] locking/selftest: Support queued rwlock

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Date:	Tue, 5 Aug 2014 16:41:08 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Shuah Khan <shuahkhan@...il.com>
Cc:	Greg KH <gregkh@...uxfoundation.org>,
	Waiman Long <Waiman.Long@...com>,
	Ingo Molnar <mingo@...nel.org>,
	Maarten Lankhorst <maarten.lankhorst@...onical.com>,
	Rik van Riel <riel@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Scott J Norton <scott.norton@...com>,
	Fengguang Wu <fengguang.wu@...el.com>
Subject: Re: [PATCH 2/2 v6] locking/selftest: Support queued rwlock

On Tue, Aug 05, 2014 at 08:07:28AM -0600, Shuah Khan wrote:
> On Tue, Aug 5, 2014 at 7:28 AM, Peter Zijlstra <peterz@...radead.org> wrote:
> 
> > Maybe I wasn't clear; but I meant you should extend the lock tests to
> > cover the full qrwlock semantics.
> >
> > That means we also need tests like:
> >
> >         RL(X1);
> >         IRQ_ENTER();
> >         RL(X2);
> >         IRQ_EXIT();
> >
> > To fully validate that in_interrupt exception to fairness etc..
> 
> A bit off topic for this patch, however relevant for tests in general.
> Is there a reason why these locking selftests need to be under lib?
> Can they be consolidated under tools/testing/selftests?

tools/ seems wrong as its very much not userspace.

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