diff options
| author | Peter Zijlstra <[email protected]> | 2011-04-05 17:23:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-04-14 08:52:32 +0200 |
| commit | 184748cc50b2dceb8287f9fb657eda48ff8fcfe7 (patch) | |
| tree | da32494cf29e5ec9f80b17dc8590bdc450ea545a /arch/um/kernel | |
| parent | a4c98f8bbeafee12c979c90743f6fda94f7515c7 (diff) | |
sched: Provide scheduler_ipi() callback in response to smp_send_reschedule()
For future rework of try_to_wake_up() we'd like to push part of that
function onto the CPU the task is actually going to run on.
In order to do so we need a generic callback from the existing scheduler IPI.
This patch introduces such a generic callback: scheduler_ipi() and
implements it as a NOP.
BenH notes: PowerPC might use this IPI on offline CPUs under rare conditions!
Acked-by: Russell King <[email protected]>
Acked-by: Martin Schwidefsky <[email protected]>
Acked-by: Chris Metcalf <[email protected]>
Acked-by: Jesper Nilsson <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
Reviewed-by: Frank Rowand <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Nick Piggin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'arch/um/kernel')
| -rw-r--r-- | arch/um/kernel/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 106bf27e2a9a..eefb107d2d73 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -173,7 +173,7 @@ void IPI_handler(int cpu) break; case 'R': - set_tsk_need_resched(current); + scheduler_ipi(); break; case 'S': |