On 6/23/20 10:52 PM, Andrii Nakryiko wrote:
On Tue, Jun 23, 2020 at 1:39 PM Daniel Borkmann <daniel@xxxxxxxxxxxxx> wrote:
On 6/23/20 5:22 AM, Andrii Nakryiko wrote:
Add selftest that validates variable-length data reading and concatentation
with one big shared data array. This is a common pattern in production use for
monitoring and tracing applications, that potentially can read a lot of data,
but overall read much less. Such pattern allows to determine precisely what
amount of data needs to be sent over perfbuf/ringbuf and maximize efficiency.
Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
Currently getting the below errors on these tests. My last clang/llvm git build
is on 4676cf444ea2 ("[Clang] Skip adding begin source location for PragmaLoopHint'd
loop when[...]"):
Yeah, you need 02553b91da5d ("bpf: bpf_probe_read_kernel_str() has to
return amount of data read on success") from bpf tree.
Fair point, it's in net- but not yet in net-next tree, so bpf-next sync needs
to wait.
I'm eagerly awaiting bpf being merged into bpf-next :)
I'll cherry-pick 02553b91da5d locally for testing and if it passes I'll push
these out.
Thanks,
Daniel
