powerpc/watchdog: Do not backtrace locked CPUs twice if allcpus backtrace is enabled

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If sysctl_hardlockup_all_cpu_backtrace is enabled, there is no need to
IPI stuck CPUs for backtrace before trigger_allbutself_cpu_backtrace(),
which does the same thing again.

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 13:29:38 +10:00 • committed by Michael Ellerman

parent 842dc1dbab

commit d58fdd9d7f

1 changed files with 11 additions and 8 deletions

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arch/powerpc/kernel/watchdog.c

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