watchdog: Simplify a little the IPI call

In order to remotely restart the watchdog hrtimer, update_timers()
allocates a csd on the stack and pass it to __smp_call_function_single().

There is no partcular need, however, for a specific csd here. Lets
simplify that a little by calling smp_call_function_single()
which can already take care of the csd allocation by itself.

Acked-by: Don Zickus <[email protected]>
Reviewed-by: Michal Hocko <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Srivatsa S. Bhat <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
1 file changed