Signed-off-by: Pranith Kumar <bobby.pr...@gmail.com> --- docs/rcu.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/docs/rcu.txt b/docs/rcu.txt index c84e7f4..c177dcb 100644 --- a/docs/rcu.txt +++ b/docs/rcu.txt @@ -197,7 +197,9 @@ DIFFERENCES WITH LINUX critical section to become an updater. - atomic_rcu_read and atomic_rcu_set replace rcu_dereference and - rcu_assign_pointer. They take a _pointer_ to the variable being accessed. + rcu_assign_pointer. Note that although both atomic_rcu_read and + rcu_dereference take a _pointer_ to the variable being accessed, + atomic_rcu_read dereferences the pointer whereas rcu_dereference does not. - call_rcu is a macro that has an extra argument (the name of the first field in the struct, which must be a struct rcu_head), and expects the -- 2.10.1
