powerpc/watchdog: Do not panic from locked CPU's IPI handler

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The SMP watchdog will detect locked CPUs and IPI them to print a
backtrace and registers. If panic on hard lockup is enabled, do not
panic from this handler, because that can cause recursion into the IPI
layer during the panic.

The caller already panics in this case.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Nicholas Piggin 2017-09-29 13:29:37 +10:00 • committed by Michael Ellerman

parent 8512bffd62

commit 842dc1dbab

1 changed files with 1 additions and 2 deletions

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arch/powerpc/kernel/watchdog.c

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