Since changeset 58ad30cf91f0 ("docs: fix reference to core-api/namespaces.rst"),
auto-references for chapters are generated. This is a nice feature, but
has a drawback: no chapters can have the same sumber.
So, we need to add two higher hierarchy chapters on this document,
in order to avoid such duplication.
Fixes: 58ad30cf91f0 ("docs: fix reference to core-api/namespaces.rst")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
Documentation/RCU/rculist_nulls.rst | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/RCU/rculist_nulls.rst b/Documentation/RCU/rculist_nulls.rst
index d40374221d69..a9fc774bc400 100644
--- a/Documentation/RCU/rculist_nulls.rst
+++ b/Documentation/RCU/rculist_nulls.rst
@@ -10,6 +10,9 @@ objects using SLAB_TYPESAFE_BY_RCU allocations.
Please read the basics in Documentation/RCU/listRCU.rst
+Using 'nulls'
+=============
+
Using special makers (called 'nulls') is a convenient way
to solve following problem :
@@ -126,6 +129,9 @@ very very fast (before the end of RCU grace period)
--------------------------------------------------------------------------
+Avoiding extra smp_rmb()
+========================
+
With hlist_nulls we can avoid extra smp_rmb() in lockless_lookup()
and extra smp_wmb() in insert function.
--
2.25.2
