Messages in this thread | | | Date | Tue, 12 May 2015 14:22:34 -0700 | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 0/3] Documentation updates for 4.2 |
| |
Hello!
This series provides a few documentation updates:
1. Fix description of smp_mb__before_spinlock() semantics, courtesy of Will Deacon.
2. Add another caveat to the list regarding the care and feeding of pointers returned by rcu_derefence(). You cannot let the compiler know too much.
3. Explicitly state that each instance of rcu_dereference() will reload the pointer, courtesy of Milos Vyletel.
Thanx, Paul
------------------------------------------------------------------------
b/Documentation/RCU/rcu_dereference.txt | 5 +++++ b/Documentation/RCU/whatisRCU.txt | 4 +++- b/Documentation/memory-barriers.txt | 7 +++---- b/include/linux/spinlock.h | 2 +- 4 files changed, 12 insertions(+), 6 deletions(-)
| |