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| author |   Peter Zijlstra <peterz@infradead.org> | 2018-09-11 11:51:27 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-09-11 20:01:03 +0200 |
| commit | cb92173d1f0474784c6171a9d3fdbbca0ee53554 (patch) | |
| tree | 235d836c029b9c8213897ab723130b1393558db5 /tools/memory-model/litmus-tests/README | |
| parent | locking/rtmutex: Fix the preprocessor logic with normal #ifdef #else #endif (diff) | |
| download | linux-dev-cb92173d1f0474784c6171a9d3fdbbca0ee53554.tar.xz linux-dev-cb92173d1f0474784c6171a9d3fdbbca0ee53554.zip | |
locking/lockdep, cpu/hotplug: Annotate AP thread
Anybody trying to assert the cpu_hotplug_lock is held (lockdep_assert_cpus_held())
from AP callbacks will fail, because the lock is held by the BP.
Stick in an explicit annotation in cpuhp_thread_fun() to make this work.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-tip-commits@vger.kernel.org
Fixes: cb538267ea1e ("jump_label/lockdep: Assert we hold the hotplug lock for _cpuslocked() operations")
Link: http://lkml.kernel.org/r/20180911095127.GT24082@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/memory-model/litmus-tests/README')
0 files changed, 0 insertions, 0 deletions