Merge branch 'bpf-verifier-allow-calling-arena-functions-when-holding-bpf-lock'

Browse source

Emil Tsalapatis says:

====================
bpf/verifier: Allow calling arena functions when holding BPF lock

BPF arena-related kfuncs now cannot sleep, so they are safe to call
while holding a spinlock. However, the verifier still rejects
programs that do so. Update the verifier to allow arena kfunc
calls while holding a lock.

Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>

Changes v1->v2: (https://lore.kernel.org/r/20260106-arena-under-lock-v1-0-6ca9c121d826@etsalapatis.com)
- Added patch to account for active locks in_sleepable_context() (AI)
====================

Link: https://patch.msgid.link/20260106-arena-under-lock-v2-0-378e9eab3066@etsalapatis.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Alexei Starovoitov 2026-01-06 17:42:55 -08:00

parent ea180ffbd2 b81d5e9d96

commit a8d5067592

2 changed files with 49 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

12

kernel/bpf/verifier.c

View file

38

tools/testing/selftests/bpf/progs/verifier_arena.c

View file