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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2010-05-19 05:45:35 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-19 05:45:35 +0200 |
| commit | 3789ae7dcd29fa146b23dc30377925d1f73c8adf (patch) | |
| tree | 39f4bc70ccbfafa9290f21bc23bbf296d8656538 | |
| parent | padata: Add some code comments (diff) | |
| download | linux-3789ae7dcd29fa146b23dc30377925d1f73c8adf.tar.xz linux-3789ae7dcd29fa146b23dc30377925d1f73c8adf.zip | |
padata: Use get_online_cpus/put_online_cpus in padata_free
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@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | kernel/padata.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/padata.c b/kernel/padata.c index ca89dfb69805..b1c9857f8402 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); |