path: root/Documentation/memory-barriers.txt
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Diffstat (limited to 'Documentation/memory-barriers.txt')
1 files changed, 0 insertions, 12 deletions
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index b759a60624fd..470a682f3fa4 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -1886,18 +1886,6 @@ There are some more advanced barrier functions:
See Documentation/atomic_{t,bitops}.txt for more information.
- (*) lockless_dereference();
- This can be thought of as a pointer-fetch wrapper around the
- smp_read_barrier_depends() data-dependency barrier.
- This is also similar to rcu_dereference(), but in cases where
- object lifetime is handled by some mechanism other than RCU, for
- example, when the objects removed only when the system goes down.
- In addition, lockless_dereference() is used in some data structures
- that can be used both with and without RCU.
(*) dma_wmb();
(*) dma_rmb();