Hello!
This series contains callback-tagging patches. These were sent earlier
in the idle/no-CBs series, but have been isolated as the more trustworthy
part of that series.
1. Tag callback lists with the grace-period number that they are
waiting for. This change enables a number of optimizations
for RCU_FAST_NO_HZ, and though it add a bit of code, it greatly
simplifies RCU's callback handling.
2. Trace callback acceleration (which is when RCU notices that a
group of callbacks doesn't actually need to wait as long as it
previously thought).
Thanx, Paul
b/include/trace/events/rcu.h | 6 -
b/kernel/rcutree.c | 201 +++++++++++++++++++++++++++++++++++++------
b/kernel/rcutree.h | 2
3 files changed, 179 insertions(+), 30 deletions(-)
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