Hello!
This series provides a variety of documentation updates:
1. Update the documentation on actions to take to avoid frenetic
call_rcu() invocations from exhausting memory, including a mention
of internal-to-RCU avoidance measures.
2. Add a note to Documentation/memory-barriers.txt stating that
ACCESS_ONCE() provides cache coherence for accesses to any
single given variable.
3. Add an explicit statement that in control dependencies, the
condition must include the load in question.
4. Add WQ_SYSFS workqueues as a work-offloading option in
Documentation/kernel-per-CPU-kthreads.txt.
5. It turns out that some types of control dependencies require
memory barriers, most notably when the exact same store is
at the beginning of both the then-clause and the else-clause.
Document this.
6. Fixups to RTFP.txt
Thanx, Paul
------------------------------------------------------------------------
Documentation/memory-barriers.txt | 29 +++--
b/Documentation/RCU/RTFP.txt | 149 +++++++++++++++++++++++-----
b/Documentation/RCU/checklist.txt | 19 ++-
b/Documentation/kernel-per-CPU-kthreads.txt | 13 ++
b/Documentation/memory-barriers.txt | 17 +++
5 files changed, 189 insertions(+), 38 deletions(-)
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