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authorThomas Gleixner <tglx@linutronix.de>2017-09-12 21:36:59 +0200
committerIngo Molnar <mingo@kernel.org>2017-09-14 11:41:04 +0200
commit5490125d77a43016b26f629d4b485e2c62172551 (patch)
tree8ce389c828dcedfe5a07705dcb84653980943b26 /arch
parentparisc, watchdog/core: Use lockup_detector_stop() (diff)
downloadlinux-5490125d77a43016b26f629d4b485e2c62172551.tar.xz
linux-5490125d77a43016b26f629d4b485e2c62172551.zip
watchdog/core: Remove broken suspend/resume interfaces
This interface has several issues: - It's causing recursive locking of the hotplug lock. - It's complete overkill to teardown all threads and then recreate them The same can be achieved with the simple hardlockup_detector_perf_stop / restart() interfaces. The abuse from the busy looping poweroff() loop of PARISC has been solved as well. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Don Zickus <dzickus@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Ulrich Obergfell <uobergfe@redhat.com> Link: http://lkml.kernel.org/r/20170912194146.487537732@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/watchdog.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
index 2f6eadd9408d..5ded171f02d6 100644
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@@ -310,9 +310,6 @@ static int start_wd_on_cpu(unsigned int cpu)
if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
return 0;
- if (watchdog_suspended)
- return 0;
-
if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
return 0;