Re: [PATCH bpf-next v5 8/9] bpf: Add tests for task_local_storage

[KP Singh]

On Fri, Nov 6, 2020 at 3:14 AM Alexei Starovoitov
<alexei.starovoitov@xxxxxxxxx> wrote:
>
> On Thu, Nov 05, 2020 at 10:58:26PM +0000, KP Singh wrote:
> > +
> > +     ret = copy_file_range(fd_in, NULL, fd_out, NULL, stat.st_size, 0);
>
> centos7 glibc doesn't have it.
>
> /prog_tests/test_local_storage.c:59:8: warning: implicit declaration of function ‘copy_file_range’; did you mean ‘sync_file_range’? [-Wimplicit-function-declaration]
>    59 |  ret = copy_file_range(fd_in, NULL, fd_out, NULL, stat.st_size, 0);
>       |        ^~~~~~~~~~~~~~~
>       |        sync_file_range
>   BINARY   test_progs
>   BINARY   test_progs-no_alu32
> ld: test_local_storage.test.o: in function `copy_rm':
> test_local_storage.c:59: undefined reference to `copy_file_range'
>
> Could you use something else or wrap it similar to pidfd_open ?

Sure, I created a wrapper similar to pidfd_open and sent out a v6.