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From: Steffen Klassert <steffen.klassert@secunet.com>
To: Herbert Xu <herbert@gondor.apana.org.au>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org
Subject: [PATCH 4/4] padata: Use get_online_cpus/put_online_cpus in padata_free
Date: Fri, 14 May 2010 13:46:46 +0200	[thread overview]
Message-ID: <20100514114646.GE2184@secunet.com> (raw)
In-Reply-To: <20100514114336.GB2184@secunet.com>

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>
---
 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

WARNING: multiple messages have this Message-ID (diff)
From: Steffen Klassert <steffen.klassert@secunet.com>
To: Herbert Xu <herbert@gondor.hengli.com.au>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org
Subject: [PATCH 4/4] padata: Use get_online_cpus/put_online_cpus in padata_free
Date: Fri, 14 May 2010 13:46:46 +0200	[thread overview]
Message-ID: <20100514114646.GE2184@secunet.com> (raw)
In-Reply-To: <20100514114336.GB2184@secunet.com>

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>
---
 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


  parent reply	other threads:[~2010-05-14 11:48 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-14 11:43 [PATCH 1/4] padata: Use a timer to handle remaining objects in the reorder queues Steffen Klassert
2010-05-14 11:43 ` Steffen Klassert
2010-05-14 11:44 ` [PATCH 2/4] padata: Flush the padata queues actively Steffen Klassert
2010-05-14 11:44   ` Steffen Klassert
2010-05-14 11:46 ` [PATCH 3/4] padata: Add some code comments Steffen Klassert
2010-05-14 11:46   ` Steffen Klassert
2010-05-14 16:18   ` Randy Dunlap
2010-05-17  7:02     ` Steffen Klassert
2010-05-18  5:49     ` [PATCH 3/4 v2] " Steffen Klassert
2010-05-19  3:45       ` Herbert Xu
2010-05-19  3:45         ` Herbert Xu
2010-05-14 11:46 ` Steffen Klassert [this message]
2010-05-14 11:46   ` [PATCH 4/4] padata: Use get_online_cpus/put_online_cpus in padata_free Steffen Klassert

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