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authorThomas Gleixner <tglx@linutronix.de>2017-09-12 21:37:16 +0200
committerIngo Molnar <mingo@kernel.org>2017-09-14 11:41:07 +0200
commit6592ad2fcc8f15b4f99b36c1db7d9f65510c203b (patch)
treebb6e84eec793718c24aba5f19a28e5473f751f43 /include/linux/nmi.h
parent7feeb9cd4f5b34476ffb9e6d58d58c5416375b19 (diff)
watchdog/core, powerpc: Make watchdog_nmi_reconfigure() two stage
Both the perf reconfiguration and the powerpc watchdog_nmi_reconfigure() need to be done in two steps. 1) Stop all NMIs 2) Read the new parameters and start NMIs Right now watchdog_nmi_reconfigure() is a combination of both. To allow a clean reconfiguration add a 'run' argument and split the functionality in powerpc. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Don Zickus <dzickus@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Ulrich Obergfell <uobergfe@redhat.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20170912194147.862865570@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/nmi.h')
-rw-r--r--include/linux/nmi.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 4a8d1037364e..eee255bc0fd6 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -103,6 +103,8 @@ static inline void arch_touch_nmi_watchdog(void) {}
#endif
#endif
+void watchdog_nmi_reconfigure(bool run);
+
/**
* touch_nmi_watchdog - restart NMI watchdog timeout.
*