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* [PATCH bpf-next 0/3] bpf: Allow inner map with different max_entries
@ 2020-05-21 19:17 Martin KaFai Lau
  2020-05-21 19:17 ` [PATCH bpf-next 1/3] bpf: Clean up inner map type check Martin KaFai Lau
                   ` (3 more replies)
  0 siblings, 4 replies; 10+ messages in thread
From: Martin KaFai Lau @ 2020-05-21 19:17 UTC (permalink / raw)
  To: bpf; +Cc: Alexei Starovoitov, Daniel Borkmann, kernel-team, netdev

This series allows the outer map to be updated with inner map in different
size as long as it is safe (meaning the max_entries is not used in the
verification time during prog load).

Please see individual patch for details.

Martin KaFai Lau (3):
  bpf: Clean up inner map type check
  bpf: Relax the max_entries check for inner map
  bpf: selftests: Add test for different inner map size

 include/linux/bpf.h                           | 18 +++++-
 include/linux/bpf_types.h                     | 64 +++++++++++--------
 kernel/bpf/btf.c                              |  2 +-
 kernel/bpf/map_in_map.c                       | 12 ++--
 kernel/bpf/syscall.c                          | 19 +++++-
 kernel/bpf/verifier.c                         |  2 +-
 .../selftests/bpf/prog_tests/btf_map_in_map.c | 12 ++++
 .../selftests/bpf/progs/test_btf_map_in_map.c | 31 +++++++++
 8 files changed, 119 insertions(+), 41 deletions(-)

-- 
2.24.1


^ permalink raw reply	[flat|nested] 10+ messages in thread

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Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-21 19:17 [PATCH bpf-next 0/3] bpf: Allow inner map with different max_entries Martin KaFai Lau
2020-05-21 19:17 ` [PATCH bpf-next 1/3] bpf: Clean up inner map type check Martin KaFai Lau
2020-05-21 19:18 ` [PATCH bpf-next 2/3] bpf: Relax the max_entries check for inner map Martin KaFai Lau
2020-05-21 19:18 ` [PATCH bpf-next 3/3] bpf: selftests: Add test for different inner map size Martin KaFai Lau
2020-05-21 22:39 ` [PATCH bpf-next 0/3] bpf: Allow inner map with different max_entries Andrii Nakryiko
2020-05-21 22:59   ` Martin KaFai Lau
2020-05-21 23:10     ` Andrii Nakryiko
2020-05-21 23:16       ` Alexei Starovoitov
2020-05-22  0:06         ` Martin KaFai Lau
2020-05-26 17:47         ` Andrii Nakryiko

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