[LTP] [PATCH] max_map_count: Add judgment of abnormal situation

[zhaogongyi]

Hi petr,

> 
> Hi,
> 
> > When CommitLimit - Committed_AS < 128, there is no post processing,
> > and the test will report "TBROK: Test haven't reported results".
> 
> > Signed-off-by: Zhao Gongyi <zhaogongyi@huawei.com>
> > ---
> >  testcases/kernel/mem/tunable/max_map_count.c | 2 ++
> >  1 file changed, 2 insertions(+)
> 
> > diff --git a/testcases/kernel/mem/tunable/max_map_count.c
> > b/testcases/kernel/mem/tunable/max_map_count.c
> > index aa70fde59..ffc53cbb5 100644
> > --- a/testcases/kernel/mem/tunable/max_map_count.c
> > +++ b/testcases/kernel/mem/tunable/max_map_count.c
> > @@ -162,6 +162,8 @@ static void max_map_count_test(void)
> >  	max_iters = memfree / sysconf(_SC_PAGESIZE) * 1024 - 64;
> >  	if (max_iters > MAX_MAP_COUNT)
> >  		max_iters = MAX_MAP_COUNT;
> > +	if (max_iters < 0)
> > +		tst_brk(TCONF, "Test nees max_iters > 0, test skipped");
> typo: nees => needs (no need to repost, can be changed during merge).
> 
> Reviewed-by: Petr Vorel <pvorel@suse.cz>
> 
> You seems to exploring limits. Out of curiosity, which system / hw do you
> test?

We are testing linux on some different embedded systems whose hw resource is limited. 

Thanks for your review!

Best Regards,
Gongyi

> Kind regards,
> Petr
> 
> >  	max_maps = MAP_COUNT_DEFAULT;
> >  	while (max_maps <= max_iters) {