mbox series

[bpf-next,0/3] bpf: Allow inner map with different max_entries

Message ID 20200521191752.3448223-1-kafai@fb.com
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Series bpf: Allow inner map with different max_entries | expand

Message

Martin KaFai Lau May 21, 2020, 7:17 p.m. UTC 
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(-)