Messages in this thread |  | | | Date | Fri, 15 Jun 2012 13:12:56 -0700 | | From | "Paul E. McKenney" <> | | Subject | [PATCH tip/core/rcu 0/14] Fixups for 3.6 |
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Hello!
This patch series has general fixups and improvements:
1. Get rid of the false positives from the code that recognizes a CPU stall that ends just as it is detected. 2. Consolidate open-coded initializations of RCU callback lists. 3. Protect unsynchronized accesses to ->qlen with ACCESS_ONCE() to document the unsynchronized access and to prevent compiler mischief. 4. Add INIT_RCU_POINTER() for static initialization to allow do-while formulation of the existing RCU_INIT_POINTER(). 5. Convert clever use of RCU_INIT_POINTER() for gcc-style initialization to INIT_RCU_POINTER(). 6. Wrap RCU_INIT_POINTER() macro in obligatory do-while. 7. Remove extraneous parentheses from rcu_assign_keypointer() to allow rcu_assign_pointer() to be wrapped in do-while. 8. Wrap rcu_assign_pointer() macro in obligatory do-while. 9. Consolidate the identical CONFIG_TREE_PREEMPT_RCU and CONFIG_TINY_PREEMPT_RCU versions of __rcu_read_lock() and __rcu_read_unlock(). 10. Remove the old inline-function version of __kfree_rcu() and __is_kfree_rcu_offset(). 11. Make __call_rcu() correctly handle calls from the idle loop. 12. Make __call_rcu() correctly handle calls from a CPU that is in the process of going offline. 13. Split __call_rcu() into the part that actually deals with enqueueing the callback and the part that kicks RCU's grace-period machinery. 14. Make RCU_TINY's rcu_is_cpu_idle() function safe for "make randconfig".
Thanx, Paul
b/include/linux/init_task.h | 4 - b/include/linux/key.h | 2 b/include/linux/rcupdate.h | 8 +++ b/kernel/rcupdate.c | 44 ++++++++++++++++++ b/kernel/rcutiny.c | 4 - b/kernel/rcutiny_plugin.h | 47 ------------------- b/kernel/rcutree.c | 4 - b/kernel/rcutree_plugin.h | 47 ------------------- include/linux/rcupdate.h | 40 +++------------- kernel/rcutree.c | 107 ++++++++++++++++++++++++++++++++------------ 10 files changed, 149 insertions(+), 158 deletions(-)
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