[PING] Re: [PATCH] Add runtime check if mutex will be elided in tst-mutex8 testcases.

[Stefan Liebler <stli at linux dot vnet dot ibm dot com>]

On 02/06/2018 07:41 AM, Stefan Liebler wrote:
> Hi,
>
> An elided mutex don't fail destroy. Elision was disabled for the
> test nptl/tst-mutex8 in nptl/Makefile. Thus we can run tests which
> destroy a locked mutex.
>
> As elision is only disabled for tst-mutex8, the variants
> tst-mutex8-static, tst-mutexpi8 and tst-mutexpi8-static are still
> failing if lock elision is enabled.
>
> This patch adds a runtime check, if the checked type of mutex will
> be elided. This check is using TUNABLE_GET_FULL to determine if
> elision is enabled via the tunables framework.
> The pthread_mutex_destroy tests are only run if we dont't assume an
> elided mutex.
>
> This way, we can run the whole glibc testsuite with or without enabled
> lock elision.
>
> Okay to commit?
>
> Bye
> Stefan
>
> ChangeLog:
>
>      * nptl/Makefile (tst-mutex8-ENV): Delete.
>      * nptl/tst-mutex8.c (check_type):
>      Add runtime check if mutex will be elided.


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