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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-04-18 20:11:39 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-05-15 19:29:18 +0200 |
| commit | c91a8675b9cc697c725b6d97fcc7f157f4a989d0 (patch) | |
| tree | 335a7e265dda2c90ad19b8240b65be694fab0a0e /kernel/rcu/tree_plugin.h | |
| parent | rcu: Make rcu_start_future_gp()'s grace-period check more precise (diff) | |
| download | linux-c91a8675b9cc697c725b6d97fcc7f157f4a989d0.tar.xz linux-c91a8675b9cc697c725b6d97fcc7f157f4a989d0.zip | |
rcu: Add accessor macros for the ->need_future_gp[] array
Accessors for the ->need_future_gp[] array are currently open-coded,
which makes them difficult to change. To improve maintainability, this
commit adds need_future_gp_mask() to compute the indexing mask from the
array size, need_future_gp_element() to access the element corresponding
to the specified grace-period number, and need_any_future_gp() to
determine if any future grace period is needed. This commit also applies
need_future_gp_element() to existing open-coded single-element accesses.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 84fbee4686d3..640ea927d8a4 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -1790,7 +1790,7 @@ static void rcu_nocb_gp_cleanup(struct swait_queue_head *sq) */ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq) { - rnp->need_future_gp[(rnp->completed + 1) & 0x1] += nrq; + need_future_gp_element(rnp, rnp->completed + 1) += nrq; } static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp) |