rcu/nocb: Use build-time no-CBs check in rcu_pending()

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Currently, rcu_pending() invokes rcu_segcblist_is_offloaded() even
in CONFIG_RCU_NOCB_CPU=n kernels, which cannot possibly be offloaded.
Given that rcu_pending() is on a fastpath, it makes sense to check for
CONFIG_RCU_NOCB_CPU=y before invoking rcu_segcblist_is_offloaded().
This commit therefore makes this change.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

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Paul E. McKenney 2019-05-21 13:53:28 -07:00

parent c1ab99d66e

commit 921bb5fad1

1 changed files with 2 additions and 1 deletions

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kernel/rcu/tree.c

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