rcu: Convert rnp->lock wrappers to macros for SRCU use

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Use of smp_mb__after_unlock_lock() would allow SRCU to omit a full
memory barrier during callback execution, so this commit converts
raw_spin_lock_rcu_node() from inline functions to type-generic macros
to allow them to handle locks in srcu_node structures as well as
rcu_node structures.

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

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Paul E. McKenney 2017-05-09 12:05:46 -07:00

parent 5f192ab027

commit bf32c76540

1 changed files with 21 additions and 26 deletions

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47

kernel/rcu/tree.h

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