Real-time updates for 3.19
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- v1 Latest7 patches 8 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/7 | init/Kconfig: move RCU_NOCB_CPU dependencies to choiceinit/ | +1 | 0 replies | |
| 2/7 | rcu: Move RCU_BOOST variable declarations, eliminating #ifdefkernel/ kernel/ | +15 | 0 replies | |
| 3/7 | rcu: Avoid IPIing idle CPUs from synchronize_sched_expedited()kernel/ | +26 | 2 replies | |
| 4/7 | rcu: Unify boost and kthread prioritiesDocumentation/ init/ kernel/ +2 more | +31 | 6 replies | |
| 5/7 | rcu: Remove redundant TREE_PREEMPT_RCU config optionDocumentation/ Documentation/ Documentation/ +45 more | +74 | 0 replies | |
| 6/7 | rcu: Kick rcuo kthreads after their CPU goes offlinekernel/ | +3 | 0 replies | |
| 7/7 | rcu: Fix for rcuo online-time-creation reorganization bugkernel/ | +7 | 0 replies |
Reviews trailers per patch
1 of 7 patches has a Reviewed-by or Acked-by.
| Patch | Josh Triplett |
|---|---|
| 1/7 | R-b |
| 2/7 | |
| 3/7 | |
| 4/7 | |
| 5/7 | |
| 6/7 | |
| 7/7 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH tip/core/rcu 0/7] Real-time updates for 3.19
Hello!
This series contains real-time-related updates:
1. Move RCU_NOCB_CPU to choice, courtesy of Stefan Hengelein.
2. Place RCU_BOOST-specific variables under pre-existing #ifdef.
3. Prevent synchronize_sched_expedited() from sending IPIs to
idle and to nohz_full CPUs.
4. Unify boost and kthread priorities, and allow this unified
priority to be set at boot time, courtesy of Clark Williams.
5. Remove redundant TREE_PREEMPT_RCU Kconfig option, courtesy of
Pranith Kumar.
6. Handle the possibility of a no-CBs CPU posting callbacks on
their last pass through the idle loop by waking up the leader kthread after the CPU has gone completely offline.
7. Fix rcuo online-time-creation reoganization bug, which seems
to be a latent bug due to systems (wisely) bringing CPUs online in numerical order.
Thanx, Paul
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b/Documentation/RCU/rcu.txt | 4 b/Documentation/RCU/stallwarn.txt | 8 - b/Documentation/RCU/trace.txt | 4 b/Documentation/RCU/whatisRCU.txt | 2 b/Documentation/kernel-parameters.txt | 6 + b/include/linux/init_task.h | 2 b/include/linux/rcupdate.h | 6 - b/include/linux/sched.h | 4 b/include/trace/events/rcu.h | 4 b/init/Kconfig | 49 +++------ b/kernel/rcu/Makefile | 2 b/kernel/rcu/tree.c | 44 +++++--- b/kernel/rcu/tree.h | 10 - b/kernel/rcu/tree_plugin.h | 53 ++++++---- b/kernel/rcu/update.c | 2 b/lib/Kconfig.debug | 2 b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 2 b/tools/testing/selftests/rcutorture/configs/rcu/TREE02 | 2 b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T | 2 b/tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 4 b/tools/testing/selftests/rcutorture/configs/rcu/TREE08 | 2 b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T | 2 b/tools/testing/selftests/rcutorture/configs/rcu/TREE09 | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P1-S-T-NH-SD-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P2-2-t-nh-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P3-3-T-nh-SD-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P4-A-t-NH-sd-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v0.0/P5-U-T-NH-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P1-S-T-NH-SD-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P2-2-t-nh-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P3-3-T-nh-SD-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P4-A-t-NH-sd-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P5-U-T-NH-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P6---t-nh-SD-smp-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-all | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-none | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P1-S-T-NH-SD-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P2-2-t-nh-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P3-3-T-nh-SD-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P4-A-t-NH-sd-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.3/P5-U-T-NH-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P1-S-T-NH-SD-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P2-2-t-nh-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P3-3-T-nh-SD-SMP-hp | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P4-A-t-NH-sd-SMP-HP | 2 b/tools/testing/selftests/rcutorture/configs/rcu/v3.5/P5-U-T-NH-sd-SMP-hp | 2 b/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt | 2 b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt | 14 +- 50 files changed, 157 insertions(+), 127 deletions(-)