[RFC v2 1/7] atomics: Add test for atomic operations with _relaxed variants

Boqun Feng boqun.feng at gmail.com
Mon Oct 12 20:38:00 AEDT 2015


On Mon, Oct 12, 2015 at 10:30:34AM +0100, Will Deacon wrote:
> On Wed, Sep 16, 2015 at 04:49:29PM +0100, Boqun Feng wrote:
> > Some atomic operations now have _{relaxed, acquire, release} variants,
> > this patch then adds some trivial tests for two purpose:
> > 
> > 1.	test the behavior of these new operations in single-CPU
> > 	environment.
> > 2.	make their code generated before we actually use them somewhere,
> > 	so that we can examine their assembly code.
> > 
> > Signed-off-by: Boqun Feng <boqun.feng at gmail.com>
> > ---
> >  lib/atomic64_test.c | 91 ++++++++++++++++++++++++++++++++++-------------------
> >  1 file changed, 59 insertions(+), 32 deletions(-)
> 
> FWIW: this was useful to me whilst developing the arm64 relaxed atomic

Glad to know.

> implementation. Could you extend it to include the recently queued inc/dec
> variants too?
> 

Already include them in upcoming V3 ;-)

Regards,
Boqun
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