Re: [PATCH bpf-next v4 00/27] x86/ftrace/bpf: Add batch support for direct/tracing attach

On Thu, Aug 26, 2021 at 09:38:55PM +0200, Jiri Olsa wrote:

hi,
sending new version of batch attach support, previous post
is in here [1].

The previous post could not assign multi trampoline on top
of regular trampolines. This patchset is trying to address
that, plus it has other fixes from last post.

This patchset contains:
  1) patches (1-4) that fix the ftrace graph tracing over the function
     with direct trampolines attached
  2) patches (5-8) that add batch interface for ftrace direct function
     register/unregister/modify
  3) patches (9-27) that add support to attach BPF program to multiple
     functions

I did a quick look and it looks ok, but probably will require another respin.
In the mean would be great to land the first 8 patches for the upcoming merge
window.
Jiri,
can you respin them quickly addressing build bot issues and maybe
Steven can apply them into his tracing tree for the merge window?
Then during the next release cycle we will only iterate on bpf bits in the
later patches.
Thoughts?