Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Blackfin: SMP: fix scheduling deadlock

Browse source 
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 <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Steven Miao 2011-08-02 17:50:41 +08:00 committed by Mike Frysinger
parent 74b654176a
commit 0b2b06efd8
1 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
arch/blackfin/mach-common/smp.c
View file

@ -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;
}