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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2016-11-03 03:25:06 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-01-23 22:44:18 +0300 |
| commit | 02a5c550b2738f2bfea8e1e00aa75944d71c9e18 (patch) | |
| tree | d59364fb9109dc4d1b7a4bcf8e801355593c296b /kernel/rcu/tree.h | |
| parent | 2625d469baeef3aabdfe122572e00c517e2d9451 (diff) | |
| download | linux-02a5c550b2738f2bfea8e1e00aa75944d71c9e18.tar.xz | |
rcu: Abstract extended quiescent state determination
This commit is the fourth step towards full abstraction of all accesses
to the ->dynticks counter, implementing previously open-coded checks and
comparisons in new rcu_dynticks_in_eqs() and rcu_dynticks_in_eqs_since()
functions. This abstraction will ease changes to the ->dynticks counter
operation.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index fe98dd24adf8..3b953dcf6afc 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -595,6 +595,8 @@ extern struct rcu_state rcu_bh_state; extern struct rcu_state rcu_preempt_state; #endif /* #ifdef CONFIG_PREEMPT_RCU */ +int rcu_dynticks_snap(struct rcu_dynticks *rdtp); + #ifdef CONFIG_RCU_BOOST DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_status); DECLARE_PER_CPU(int, rcu_cpu_kthread_cpu); |