Prev: [PATCH 2/4] padata: Flush the padata queues actively
Next: [PATCH 3/4] padata: Add some code comments
From: Steffen Klassert on 14 May 2010 07:50
Add get_online_cpus/put_online_cpus to ensure that no cpu goes
offline during the flushing of the padata percpu queues.

Signed-off-by: Steffen Klassert <steffen.klassert(a)secunet.com>
---
kernel/padata.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/padata.c b/kernel/padata.c
index 629bef3..1f40560 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -763,7 +763,10 @@ void padata_free(struct padata_instance *pinst)
#ifdef CONFIG_HOTPLUG_CPU
unregister_hotcpu_notifier(&pinst->cpu_notifier);
#endif
+ get_online_cpus();
padata_flush_queues(pinst->pd);
+ put_online_cpus();
+
padata_free_pd(pinst->pd);
free_cpumask_var(pinst->cpumask);
kfree(pinst);
--
1.5.6.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
 | 
Pages: 1
Prev: [PATCH 2/4] padata: Flush the padata queues actively
Next: [PATCH 3/4] padata: Add some code comments