On Wed, May 24, 2017 at 10:15:39AM +0200, Thomas Gleixner wrote:
> The text patching functions which are invoked from jump_label and kprobes
> code are protected against cpu hotplug at the call sites.
> 
> Use stop_machine_cpuslocked() to avoid recursion on the cpu hotplug
> rwsem. stop_machine_cpuslocked() contains a lockdep assertion to catch any
> unprotected callers.
> 
> Signed-off-by: Thomas Gleixner <t...@linutronix.de>
> Cc: Martin Schwidefsky <schwidef...@de.ibm.com>
> Cc: Heiko Carstens <heiko.carst...@de.ibm.com>
> Cc: linux-s...@vger.kernel.org
> ---
>  arch/s390/kernel/jump_label.c |    2 +-
>  arch/s390/kernel/kprobes.c    |    4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)

Acked-by: Heiko Carstens <heiko.carst...@de.ibm.com>

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