Hello! This series provides miscellaneous fixes: 1. Fix to include first blocked task in stall warning, courtesy of Yanfei Xu. 2. Fix stall-warning deadlock due to non-release of rcu_node ->lock, courtesy of Yanfei Xu. 3. Remove special bit at the bottom of the ->dynticks counter, courtesy of "Joel Fernandes (Google)". 4. Weaken ->dynticks accesses and updates. 5. Mark accesses to ->rcu_read_lock_nesting. 6. Unify documentation about missing list_empty_rcu(), courtesy of Julian Wiedmann. 7. Handle VM stoppage in stall detection, courtesy of Sergey Senozhatsky. 8. Do not disable GP stall detection in rcu_cpu_stall_reset(), courtesy of Sergey Senozhatsky. 9. Start timing stall repetitions after warning complete. 10. Mark read-side data races. 11. Mark lockless ->qsmask read in rcu_check_boost_fail(). 12. Make rcu_gp_init() and rcu_gp_fqs_loop noinline to conserve stack. 13. Remove trailing spaces and tabs, courtesy of Zhen Lei. 14. Mark accesses in tree_stall.h. 15. Remove useless "ret" update in rcu_gp_fqs_loop(), courtesy of Liu Song. 16. Use per_cpu_ptr to get the pointer of per_cpu variable, courtesy of Liu Song. 17. Explain why rcu_all_qs() is a stub in preemptible TREE RCU, courtesy of Frederic Weisbecker. 18. Print human-readable message for schedule() in RCU reader. Thanx, Paul ------------------------------------------------------------------------ b/include/linux/rculist.h | 35 +++++++------- b/include/linux/rcupdate.h | 2 b/include/linux/rcutiny.h | 3 - b/include/linux/srcutiny.h | 8 +-- b/kernel/rcu/srcutiny.c | 2 b/kernel/rcu/tasks.h | 2 b/kernel/rcu/tree.c | 77 +++++--------------------------- b/kernel/rcu/tree.h | 2 b/kernel/rcu/tree_plugin.h | 9 ++- b/kernel/rcu/tree_stall.h | 4 - b/kernel/sched/core.c | 11 ++++ kernel/rcu/tree.c | 62 ++++++++++++++++---------- kernel/rcu/tree_plugin.h | 2 kernel/rcu/tree_stall.h | 107 ++++++++++++++++++++++++++++----------------- 14 files changed, 165 insertions(+), 161 deletions(-)
