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| author | Paul E. McKenney | 2015-08-06 20:31:51 +0200 |
|---|---|---|
| committer | Paul E. McKenney | 2015-09-21 06:16:20 +0200 |
| commit | 97c668b8e983b722e2ed765b98b05f644aff1b13 (patch) | |
| tree | 98ff9c8a31e2eb957703a0e547dc87e1c1178640 /kernel/rcu/tree_plugin.h | |
| parent | rcu: Move synchronize_sched_expedited() to combining tree (diff) | |
| download | kernel-qcow2-linux-97c668b8e983b722e2ed765b98b05f644aff1b13.tar.gz kernel-qcow2-linux-97c668b8e983b722e2ed765b98b05f644aff1b13.tar.xz kernel-qcow2-linux-97c668b8e983b722e2ed765b98b05f644aff1b13.zip | |
rcu: Rename qs_pending to core_needs_qs
An upcoming commit needs to invert the sense of the ->passed_quiesce
rcu_data structure field, so this commit is taking this opportunity
to clarify things a bit by renaming ->qs_pending to ->core_needs_qs.
So if !rdp->core_needs_qs, then this CPU need not concern itself with
quiescent states, in particular, it need not acquire its leaf rcu_node
structure's ->lock to check. Otherwise, it needs to report the next
quiescent state.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.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 6f7500f9387c..e33b4f3b8e0a 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -619,7 +619,7 @@ static void rcu_preempt_check_callbacks(void) return; } if (t->rcu_read_lock_nesting > 0 && - __this_cpu_read(rcu_data_p->qs_pending) && + __this_cpu_read(rcu_data_p->core_needs_qs) && !__this_cpu_read(rcu_data_p->passed_quiesce)) t->rcu_read_unlock_special.b.need_qs = true; } |