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Groups > linux.kernel > #1341505
| From | "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH tip/core/rcu 0/14] Documentation updates for 4.6 |
| Date | 2016-02-24 06:10 +0100 |
| Message-ID | <r5zS2-84d-11@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Hello! This series contains documentation updates as follows: 1. Update the requirements design-level documentation to record RCU's responsibility to avoid injecting OS jitter onto nohz_full CPUs. 2. Fix control-dependency summary of memory-barriers.txt to note that barrier() does not always prevent code reordering when both legs of an "if" statement begin with identical code. 3. Fix memory-barriers.txt section references. 4. Update the requirements design-level documentation to add synchronize_rcu_mult(). 5. Remove obsolete references to RCU-protected array indexes from memory-barriers.txt. 6. Update memory-barriers.txt to explicitly state that rcu_dereference() orders writes to as well as reads from the RCU-protected data item. 7. Update memory-barriers.txt to distinguish between local and global transitivity. 8. Update memory-barriers.txt to add alternative outcome from release-acquire chain. 9. Add design-level documentation for RCU's major data structures. 10. Update the requirements design-level documentation to explain why rcu_read_lock() needs no barrier() for PREEMPT=n. 11. Remove misleading statement that transitivity is cumulativity from memory-barriers.txt. 12. Update the requirements design-level documentation to explicitly state that it is illegal to invoke call_rcu() from an offline CPU. 13. Add text to the design-level documentation for RCU's major data structures stating how the combining tree keeps lock contention under control. 14. Clarify compiler store-fusion example in memory-barriers.txt. Thanx, Paul ------------------------------------------------------------------------ RCU/Design/Data-Structures/BigTreeClassicRCU.svg | 474 ++++ RCU/Design/Data-Structures/BigTreeClassicRCUBH.svg | 499 ++++ RCU/Design/Data-Structures/BigTreeClassicRCUBHdyntick.svg | 695 +++++ RCU/Design/Data-Structures/BigTreePreemptRCUBHdyntick.svg | 741 ++++++ RCU/Design/Data-Structures/BigTreePreemptRCUBHdyntickCB.svg | 858 +++++++ RCU/Design/Data-Structures/Data-Structures.html | 1395 ++++++++++++ RCU/Design/Data-Structures/Data-Structures.htmlx | 1295 +++++++++++ RCU/Design/Data-Structures/HugeTreeClassicRCU.svg | 939 ++++++++ RCU/Design/Data-Structures/TreeLevel.svg | 828 +++++++ RCU/Design/Data-Structures/TreeMapping.svg | 305 ++ RCU/Design/Data-Structures/TreeMappingLevel.svg | 380 +++ RCU/Design/Data-Structures/blkd_task.svg | 843 +++++++ RCU/Design/Data-Structures/nxtlist.svg | 396 +++ RCU/Design/Requirements/Requirements.html | 235 +- RCU/Design/Requirements/Requirements.htmlx | 121 + memory-barriers.txt | 141 - 16 files changed, 10074 insertions(+), 71 deletions(-)
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[PATCH tip/core/rcu 0/14] Documentation updates for 4.6 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 01/14] documentation: Add real-time requirements from CPU-bound workloads "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 14/14] documentation: Clarify compiler store-fusion example "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 12/14] documentation: Document illegality of call_rcu() from offline CPUs "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 07/14] documentation: Distinguish between local and global transitivity "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 05/14] documentation: Remove obsolete reference to RCU-protected indexes "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 08/14] documentation: Add alternative release-acquire outcome "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 11/14] documentation: Transitivity is not cumulativity "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 04/14] documentation: Add synchronize_rcu_mult() to the requirements "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:10 +0100
[PATCH tip/core/rcu 13/14] documentation: Explain how RCU's combining tree fights contention "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:20 +0100
[PATCH tip/core/rcu 10/14] documentation: Explain why rcu_read_lock() needs no barrier() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:20 +0100
[PATCH tip/core/rcu 03/14] documentation: Fix memory-barriers.txt section references "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:20 +0100
[PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:20 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2016-02-24 22:20 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 22:50 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores Jianyu Zhan <nasa4836@gmail.com> - 2016-02-25 07:50 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-25 15:10 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores Peter Zijlstra <peterz@infradead.org> - 2016-02-25 09:30 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-25 15:10 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores Peter Zijlstra <peterz@infradead.org> - 2016-02-25 15:50 +0100
Re: [PATCH tip/core/rcu 02/14] documentation: Fix control dependency and identical stores "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-25 16:50 +0100
[PATCH tip/core/rcu 06/14] documentation: Subsequent writes ordered by rcu_dereference() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-02-24 06:20 +0100
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