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[PATCH] MIPS: Octeon: Mark octeon_wdt interrupt as IRQF_NO_THREAD

Subject: [PATCH] MIPS: Octeon: Mark octeon_wdt interrupt as IRQF_NO_THREAD
From: Venkat Subbiah <>
Date: Mon, 3 Oct 2011 16:30:28 -0700
This is to exclude it from force threading to allow RT patch set to work.

The watchdog timers are per-CPU and the addresses of register that reset
the timer are calculated based on the current CPU.  Therefore we cannot
allow it to run on a thread on a different CPU.  Also we only do a
single register write, which is much faster than scheduling a handler

And while on this line remove IRQF_DISABLED as this flag is a NOP.

Signed-off-by: Venkat Subbiah <>
Acked-by: David Daney <>
 drivers/watchdog/octeon-wdt-main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/watchdog/octeon-wdt-main.c 
index 945ee83..7c0d863 100644
--- a/drivers/watchdog/octeon-wdt-main.c
+++ b/drivers/watchdog/octeon-wdt-main.c
@@ -402,7 +402,7 @@ static void octeon_wdt_setup_interrupt(int cpu)
        irq = OCTEON_IRQ_WDOG0 + core;
        if (request_irq(irq, octeon_wdt_poke_irq,
-                       IRQF_DISABLED, "octeon_wdt", octeon_wdt_poke_irq))
+                       IRQF_NO_THREAD, "octeon_wdt", octeon_wdt_poke_irq))
                panic("octeon_wdt: Couldn't obtain irq %d", irq);
        cpumask_set_cpu(cpu, &irq_enabled_cpus);

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