sched: Make migration_call() safe for stop_machine()-free hotplug
The CPU_DYING branch of migration_call() relies on the fact that
CPU-hotplug offline operations use stop_machine(). This commit therefore
attempts to remedy this situation by moving work to the CPU_DEAD
notifier when the outgoing CPU is quiescent. This requires a small
change to migrate_nr_uninterruptible() to move counts to the current
running CPU instead of a randomly selected CPU.
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
1 file changed
