diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2017-05-24 10:15:28 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-05-26 10:10:42 +0200 |
| commit | 210e21331fc3a396af640cec652be769d146e49f (patch) | |
| tree | 6a93eece8fdbd2c9bf77aeeab2a42e84cb7899ec /usr/initramfs_data.S | |
| parent | f9a69931c3959940538884d5962b770c3db75df5 (diff) | |
cpu/hotplug: Use stop_machine_cpuslocked() in takedown_cpu()
takedown_cpu() is a cpu hotplug function invoking stop_machine(). The cpu
hotplug machinery holds the hotplug lock for write.
stop_machine() invokes get_online_cpus() as well. This is correct, but
prevents the conversion of the hotplug locking to a percpu rwsem.
Use stop_machine_cpuslocked() to avoid the nested call.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170524081548.423292433@linutronix.de
Diffstat (limited to 'usr/initramfs_data.S')
0 files changed, 0 insertions, 0 deletions