This is to exclude it from force threading to allow RT patch set to work.Sending it to kernel watchdog maintainers. Forgot to include them in the prior email.
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
thread.
And while on this line remove IRQF_DISABLED as this flag is a NOP.
Signed-off-by: Venkat Subbiah<venkat.subbiah@xxxxxxxxxx>
Acked-by: David Daney<david.daney@xxxxxxxxxx>
---
drivers/watchdog/octeon-wdt-main.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/watchdog/octeon-wdt-main.c b/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);