linux-kernel - [PATCH v5 44/45] CPU hotplug, stop_machine: Decouple CPU hotplug from stop

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Message-ID: <20130122074518.13822.86992.stgit@srivatsabhat.in.ibm.com>
Date:	Tue, 22 Jan 2013 13:15:22 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	tglx@...utronix.de, peterz@...radead.org, tj@...nel.org,
	oleg@...hat.com, paulmck@...ux.vnet.ibm.com, rusty@...tcorp.com.au,
	mingo@...nel.org, akpm@...ux-foundation.org, namhyung@...nel.org
Cc:	rostedt@...dmis.org, wangyun@...ux.vnet.ibm.com,
	xiaoguangrong@...ux.vnet.ibm.com, rjw@...k.pl, sbw@....edu,
	fweisbec@...il.com, linux@....linux.org.uk,
	nikunj@...ux.vnet.ibm.com, srivatsa.bhat@...ux.vnet.ibm.com,
	linux-pm@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v5 44/45] CPU hotplug,
 stop_machine: Decouple CPU hotplug from stop_machine() in Kconfig

... and also cleanup a comment that refers to CPU hotplug being dependent on
stop_machine().

Cc: David Howells <dhowells@...hat.com>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>
---

 include/linux/stop_machine.h |    2 +-
 init/Kconfig                 |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 3b5e910..ce2d3c4 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -120,7 +120,7 @@ int stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
  * @cpus: the cpus to run the @fn() on (NULL = any online cpu)
  *
  * Description: This is a special version of the above, which assumes cpus
- * won't come or go while it's being called.  Used by hotplug cpu.
+ * won't come or go while it's being called.
  */
 int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
 
diff --git a/init/Kconfig b/init/Kconfig
index be8b7f5..048a0c5 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1711,7 +1711,7 @@ config INIT_ALL_POSSIBLE
 config STOP_MACHINE
 	bool
 	default y
-	depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
+	depends on (SMP && MODULE_UNLOAD)
 	help
 	  Need stop_machine() primitive.
 

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