The series removes all users of the API and with this patch, the API
itself. Also fix documentation.
Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>
---
Documentation/RCU/Design/Requirements/Requirements.html | 6 +++---
include/linux/rcupdate.h | 9 ---------
2 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/Documentation/RCU/Design/Requirements/Requirements.html b/Documentation/RCU/Design/Requirements/Requirements.html
index 5a9238a2883c..9727278893e6 100644
--- a/Documentation/RCU/Design/Requirements/Requirements.html
+++ b/Documentation/RCU/Design/Requirements/Requirements.html
@@ -2512,9 +2512,9 @@ disabled across the entire RCU read-side critical section.
<p>
It is possible to use tracing on RCU code, but tracing itself
uses RCU.
-For this reason, <tt>rcu_dereference_raw_notrace()</tt>
-is provided for use by tracing, which avoids the destructive
-recursion that could otherwise ensue.
+This is the other reason for using, <tt>rcu_dereference_raw()</tt>,
+for use by tracing, which avoids the destructive recursion that could
+otherwise ensue.
This API is also used by virtualization in some architectures,
where RCU readers execute in environments in which tracing
cannot be used.
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 922bb6848813..f917a27fc115 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -472,15 +472,6 @@ static inline void rcu_preempt_sleep_check(void) { }
__rcu_dereference_check((p), (c) || rcu_read_lock_sched_held(), \
__rcu)
-/*
- * The tracing infrastructure traces RCU (we want that), but unfortunately
- * some of the RCU checks causes tracing to lock up the system.
- *
- * The no-tracing version of rcu_dereference_raw() must not call
- * rcu_read_lock_held().
- */
-#define rcu_dereference_raw_notrace(p) __rcu_dereference_check((p), 1, __rcu)
-
/**
* rcu_dereference_protected() - fetch RCU pointer when updates prevented
* @p: The pointer to read, prior to dereferencing
--
2.22.0.rc1.257.g3120a18244-goog
