On Wed, Nov 24, 2021 at 01:48:09PM -0800, Andrii Nakryiko wrote: > On Thu, Nov 18, 2021 at 3:25 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > > > > Keeping active attached trampoline in bpf_prog so it can be used > > in following changes to account for multiple functions attachments > > in program. > > > > As EXT programs are not going to be supported in multiple functions > > attachment for now, I'm keeping them stored in link. > > can the same EXT program be attached twice? If not, why can't you just > use the same prog->aux->trampoline instead of the if/else everywhere? I recall that was my initial change, but it was clashing with fentry/fexit programs because extensions are special I'll re-check and try to make this generic jirka > > > > > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> > > --- > > include/linux/bpf.h | 1 + > > kernel/bpf/syscall.c | 34 +++++++++++++++++++++++++++++----- > > 2 files changed, 30 insertions(+), 5 deletions(-) > > >
