From 0b2b06efd81ceb1630babcf2990f9577a17c132f Mon Sep 17 00:00:00 2001 From: Steven Miao Date: Tue, 2 Aug 2011 17:50:41 +0800 Subject: [PATCH] Blackfin: SMP: fix scheduling deadlock Make sure our smp_send_reschedule() implementation matches the scheduler_ipi() callback so that it can kick the idle cpu. Signed-off-by: Steven Miao Signed-off-by: Mike Frysinger --- arch/blackfin/mach-common/smp.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c index 107622aacf6b..0784a52389c8 100644 --- a/arch/blackfin/mach-common/smp.c +++ b/arch/blackfin/mach-common/smp.c @@ -295,10 +295,15 @@ EXPORT_SYMBOL_GPL(smp_call_function_single); void smp_send_reschedule(int cpu) { + cpumask_t callmap; /* simply trigger an ipi */ if (cpu_is_offline(cpu)) return; - platform_send_ipi_cpu(cpu, IRQ_SUPPLE_0); + + cpumask_clear(&callmap); + cpumask_set_cpu(cpu, &callmap); + + smp_send_message(callmap, BFIN_IPI_RESCHEDULE, NULL, NULL, 0); return; } -- GitLab