Hello!
The following are changes to documentation and rcutorture:
1. Export trace_clock_local() in order to allow rcutorture event
tracing to emit the time of the beginning of the RCU read-side
critical section at the point where a failure is detected.
2. Reduce rcutorture's read-side tracing to include only failures,
thus cutting the number of events down to something reasonable
(normally zero, in fact!).
3. Add atomic_xchg() to the list of atomic operations and memory
barriers, courtesy of Richard Braun.
4. Make rcutorture's shuffler task also shuffle recently added
rcutorture kthreads.
Changes since v1:
o Fixed build problem in #2 located by Randy Dunlap based on
diagnosis from Steven Rostedt.
o Added patch #4.
Thanx, Paul
b/Documentation/atomic_ops.txt | 2 +
b/Documentation/memory-barriers.txt | 1
b/include/linux/rcupdate.h | 13 ++++++--
b/include/trace/events/rcu.h | 19 +++++++++---
b/kernel/rcupdate.c | 9 +++--
b/kernel/rcutorture.c | 55 ++++++++++++++++++++++++++++--------
b/kernel/trace/trace_clock.c | 1
b/lib/Kconfig.debug | 1
8 files changed, 79 insertions(+), 22 deletions(-)
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