[LTP] [PATCH 1/1] test_zero_hugepage.sh: Detect errors write to /proc/sys/vm/nr_hugepages

[Petr Vorel]

Hi Li,

> On Fri, Nov 5, 2021 at 12:45 AM Petr Vorel <pvorel@suse.cz> wrote:

> > Fix running make test-c as non-root.

> > Fixes: 057d6b046 ("lib/tst_hugepage: Fix .request_hugepages = 0 bug")

> > Signed-off-by: Petr Vorel <pvorel@suse.cz>
> > ---
> > Hi,

> > maybe echo "128" would not have to be checked.


> Agreed, If the system memory is too fragmental to keep
> enough hpages, there won't be an error returned.
OK, wait little longer and then merge with keeping
echo "128" > /proc/sys/vm/nr_hugepages

...
> > -echo "128" > /proc/sys/vm/nr_hugepages
> > +if ! echo "128" > /proc/sys/vm/nr_hugepages; then
> > +       tconf "Failed to write /proc/sys/vm/nr_hugepages"
> > +fi

Thanks for your review!

Kind regards,
Petr