rcu: Create and use an rcu_rdp_cpu_online()

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The pattern "rdp->grpmask & rcu_rnp_online_cpus(rnp)" occurs frequently
in RCU code in order to determine whether rdp->cpu is online from an
RCU perspective.  This commit therefore creates an rcu_rdp_cpu_online()
function to replace it.

[ paulmck: Apply kernel test robot unused-variable feedback. ]

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Paul E. McKenney 2021-12-10 13:44:17 -08:00

parent 80b3fd474c

commit 5ae0f1b58b

2 changed files with 15 additions and 12 deletions

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21

kernel/rcu/tree.c

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6

kernel/rcu/tree_plugin.h

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