Author: hselasky
Date: Sun Feb 18 09:10:14 2018
New Revision: 329514
URL: https://svnweb.freebsd.org/changeset/base/329514
Log:
Implement the rcu_dereference_raw() function macro.
Make sure all RCU dereferencing use the READ_ONCE() function macro.
MFC after: 1 week
Submitted by: Johannes Lundberg <johal...@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks
Modified:
head/sys/compat/linuxkpi/common/include/linux/rcupdate.h
Modified: head/sys/compat/linuxkpi/common/include/linux/rcupdate.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/rcupdate.h Sun Feb 18
08:58:20 2018 (r329513)
+++ head/sys/compat/linuxkpi/common/include/linux/rcupdate.h Sun Feb 18
09:10:14 2018 (r329514)
@@ -74,13 +74,16 @@
} while (0)
#define rcu_access_pointer(p) \
- ((__typeof(*p) *)(READ_ONCE(p)))
+ ((__typeof(*p) *)READ_ONCE(p))
#define rcu_dereference_protected(p, c) \
- ((__typeof(*p) *)(p))
+ ((__typeof(*p) *)READ_ONCE(p))
#define rcu_dereference(p) \
rcu_dereference_protected(p, 0)
+
+#define rcu_dereference_raw(p) \
+ ((__typeof(*p) *)READ_ONCE(p))
#define rcu_pointer_handoff(p) (p)
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