bpf: Allow calls to arena functions while holding spinlocks

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The bpf_arena_*_pages() kfuncs can be called from sleepable contexts,
but the verifier still prevents BPF programs from calling them while
holding a spinlock. Amend the verifier to allow for BPF programs
calling arena page management functions while holding a lock.

Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/r/20260106-arena-under-lock-v2-2-378e9eab3066@etsalapatis.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Emil Tsalapatis 2026-01-06 18:36:44 -05:00 • committed by Alexei Starovoitov

parent b25b48c7d3

commit 39f77533b6

1 changed files with 10 additions and 1 deletions

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kernel/bpf/verifier.c

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