Messages in this thread | | | Date | Wed, 21 Jul 2021 13:20:42 -0700 | From | "Paul E. McKenney" <> | Subject | [PATCH rcu 0/18] Miscellaneous fixes for v5.15 |
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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
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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(-)
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