[LTP] [PATCH] syscalls/ustat: convert to new lib, use direct syscall

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> > +++ b/include/lapi/ustat.h
> > @@ -0,0 +1,8 @@
> > +#include <sys/types.h>
> I'd put here at least
> //SPDX-License-Identifier: GPL-2.0-or-later
> > +
> > +struct ustat {
> > +	daddr_t f_tfree;
> > +	ino_t f_tinode;
> > +	char f_fname[6];
> > +	char f_fpack[6];
> > +};
> Thinking about it twice, wouldn't be better to include <sys/ustat.h> and detect
> with autotools whether struct ustat is defined and use this only if it's not
> defined? The same approach we use for struct statx?

And we do have the configure check for ustat.h in place so this should
be as easy as doing:

#ifdef HAVE_SYS_USTAT_H
# include <sys/ustat.h>
#else
struct ustat {
...
}
#endif

Also ideally this header should include guards, even if it's unlikely to
be included twice.

> > +++ b/testcases/kernel/syscalls/ustat/ustat01.c
> > @@ -1,21 +1,7 @@
> > +// SPDX-License-Identifier: GPL-2.0
> @Cyril: can we use GPL-2.0-or-later? Original was GPL only.

I would have kept it GPL-2.0 unless it's rewritten from scratch
completely.

-- 
Cyril Hrubis
chrubis@suse.cz