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From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andriin@fb.com>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
	"Martin KaFai Lau" <kafai@fb.com>,
	"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
	"John Fastabend" <john.fastabend@gmail.com>,
	"KP Singh" <kpsingh@chromium.org>,
	"Toke Høiland-Jørgensen" <toke@redhat.com>,
	"Julia Lawall" <julia.lawall@inria.fr>
Subject: [PATCHv5 bpf-next 0/7] bpf: Tracing and lsm programs re-attach
Date: Wed, 14 Apr 2021 21:51:40 +0200	[thread overview]
Message-ID: <20210414195147.1624932-1-jolsa@kernel.org> (raw)

hi,
while adding test for pinning the module while there's
trampoline attach to it, I noticed that we don't allow
link detach and following re-attach for trampolines.
Adding that for tracing and lsm programs.

You need to have patch [1] from bpf tree for test module
attach test to pass.

v5 changes:
  - fixed missing hlist_del_init change
  - fixed several ASSERT calls
  - added extra patch for missing ';'
  - added ASSERT macros to lsm test
  - added acks

thanks,
jirka


[1] https://lore.kernel.org/bpf/20210326105900.151466-1-jolsa@kernel.org/
---
Jiri Olsa (7):
      bpf: Allow trampoline re-attach for tracing and lsm programs
      selftests/bpf: Add missing semicolon
      selftests/bpf: Add re-attach test to fentry_test
      selftests/bpf: Add re-attach test to fexit_test
      selftests/bpf: Add re-attach test to lsm test
      selftests/bpf: Test that module can't be unloaded with attached trampoline
      selftests/bpf: Use ASSERT macros in lsm test

 kernel/bpf/syscall.c                                   | 23 +++++++++++++++++------
 kernel/bpf/trampoline.c                                |  4 ++--
 tools/testing/selftests/bpf/prog_tests/fentry_test.c   | 52 +++++++++++++++++++++++++++++++++++++---------------
 tools/testing/selftests/bpf/prog_tests/fexit_test.c    | 52 +++++++++++++++++++++++++++++++++++++---------------
 tools/testing/selftests/bpf/prog_tests/module_attach.c | 23 +++++++++++++++++++++++
 tools/testing/selftests/bpf/prog_tests/test_lsm.c      | 61 +++++++++++++++++++++++++++++++++++++++++--------------------
 tools/testing/selftests/bpf/test_progs.h               |  2 +-
 7 files changed, 158 insertions(+), 59 deletions(-)


             reply	other threads:[~2021-04-14 19:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-14 19:51 Jiri Olsa [this message]
2021-04-14 19:51 ` [PATCHv5 bpf-next 1/7] bpf: Allow trampoline re-attach for tracing and lsm programs Jiri Olsa
2021-04-15 23:22   ` Andrii Nakryiko
2021-04-19 22:47     ` KP Singh
2021-04-14 19:51 ` [PATCHv5 bpf-next 2/7] selftests/bpf: Add missing semicolon Jiri Olsa
2021-04-15 23:23   ` Andrii Nakryiko
2021-04-14 19:51 ` [PATCHv5 bpf-next 3/7] selftests/bpf: Add re-attach test to fentry_test Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 4/7] selftests/bpf: Add re-attach test to fexit_test Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 5/7] selftests/bpf: Add re-attach test to lsm test Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 6/7] selftests/bpf: Test that module can't be unloaded with attached trampoline Jiri Olsa
2021-04-14 19:51 ` [PATCHv5 bpf-next 7/7] selftests/bpf: Use ASSERT macros in lsm test Jiri Olsa
2021-04-15 23:24   ` Andrii Nakryiko
2021-04-15 23:45 ` [PATCHv5 bpf-next 0/7] bpf: Tracing and lsm programs re-attach Alexei Starovoitov
2021-04-16  6:55   ` Jiri Olsa
2021-04-26  4:14     ` Alexei Starovoitov

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