[LTP] [PATCH 1/3] lib: add .min_cpus in tst_test struct

[Richard Palethorpe <rpalethorpe@suse.de>]

Hello li,

Only some minor nits.

Li Wang <liwang@redhat.com> writes:

> As the name implies, this new field is mainly to set minimum numbers
> of CPU for LTP testcase. If system online CPUs are less than .min_cpus,
> test will be exit with TCONF.
>
> Note: I wouldn't add more description in test-writing-guidelines.txt,
> because it is easy to understand the usage from the name.
>
> Signed-off-by: Li Wang <liwang@redhat.com>
> ---
>  include/tst_test.h | 3 +++
>  lib/tst_test.c     | 3 +++
>  2 files changed, 6 insertions(+)
>
> diff --git a/include/tst_test.h b/include/tst_test.h
> index c91d3f18a..64a0934dd 100644
> --- a/include/tst_test.h
> +++ b/include/tst_test.h
> @@ -157,6 +157,9 @@ struct tst_test {
>  	 */
>  	int all_filesystems:1;
>  
> +	/* Minimal numbers of CPU online required by the test */

*Mininum number of online CPUs required by the test*

> +	unsigned long min_cpus;
> +
>  	/*
>  	 * If set non-zero number of request_hugepages, test will try to reserve the
>  	 * expected number of hugepage for testing in setup phase. If system does not
> diff --git a/lib/tst_test.c b/lib/tst_test.c
> index 535c0ff4c..90b69789c 100644
> --- a/lib/tst_test.c
> +++ b/lib/tst_test.c
> @@ -918,6 +918,9 @@ static void do_setup(int argc, char *argv[])
>  	if (tst_test->all_filesystems)
>  		tst_test->needs_device = 1;
>  
> +	if (tst_test->min_cpus > tst_ncpus())
> +		tst_brk(TCONF, "Test needs %lu CPUs online", tst_test->min_cpus);
                                          ^at least 

> +
>  	if (tst_test->request_hugepages)
>  		tst_request_hugepages(tst_test->request_hugepages);
>  
> -- 
> 2.21.3


-- 
Thank you,
Richard.