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/sparc/kernel/smp_32.c | |
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/sparc/kernel/smp_32.c')
-rw-r--r-- | arch/sparc/kernel/smp_32.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 91c10fb70858..f95690c167b6 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -125,7 +125,9 @@ struct linux_prom_registers smp_penguin_ctable __cpuinitdata = { 0 }; void smp_send_reschedule(int cpu) { - /* See sparc64 */ + /* + * XXX missing reschedule IPI, see scheduler_ipi() + */ } void smp_send_stop(void) |