[PATCH] arm64: replace read_lock to rcu lock in call_step_hook

[Steven Rostedt]

On Tue, 9 Feb 2016 14:54:26 +0000
Will Deacon <will.deacon at arm.com> wrote:


> Acked-by: Will Deacon <will.deacon at arm.com>

Will,

The patch looks good to me. Do you want to take it through your tree?

It benefits mainline too as a rcu_read_lock() is more efficient than
rwlocks. Although I will say this is a slow path anyway.

-- Steve