Merge branch 'misc-rqspinlock-updates'

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Kumar Kartikeya Dwivedi says:

====================
Misc rqspinlock updates

A couple of changes for rqspinlock, the first disables propagation of AA
and ABBA deadlocks to waiters succeeding the deadlocking waiter. A more
verbose rationale is available in the commit log. The second commit
expands the stress test to introduce a ABBCCA mode that will reliably
exercise the timeout fallback.
====================

Link: https://lore.kernel.org/r/20251029181828.231529-1-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2025-10-29 18:17:56 -07:00

parent 5913e936f6 a8a0abf097

commit d28c0e4921

3 changed files with 74 additions and 27 deletions

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8

kernel/bpf/rqspinlock.c

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8

tools/testing/selftests/bpf/prog_tests/res_spin_lock.c

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85

tools/testing/selftests/bpf/test_kmods/bpf_test_rqspinlock.c

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