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SubjectRe: [PATCH 2/3] stop_machine: simplify
Rusty Russell wrote:
> stop_machine creates a kthread which creates kernel threads. We can
> create those threads directly and simplify things a little. Some care
> must be taken with CPU hotunplug, which has special needs, but that code
> seems more robust than it was in the past.
> Signed-off-by: Rusty Russell <>


You mentioned (in private conversation) that you were going to add some
logic that checks whether CPU is running user-space code and not holding
any locks to avoid scheduling stop_machine thread on it. Was it supposed
to be part of this patch ?


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