Miscellaneous fixes for 4.10
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- v1 Latest7 patches 9 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/7 | rcu: Tighten up __call_rcu() rcu_head alignment checkkernel/ | +3 | 0 replies | |
| 2/7 | rcu: Remove obsolete rcu_check_callbacks() header commentkernel/ | +1 | 0 replies | |
| 3/7 | rcu: Remove obsolete comment from __call_rcu()kernel/ | +0 | 0 replies | |
| 4/7 | rcu: RCU_TRACE enables event tracing as well as debugfslib/ | +2 | 0 replies | |
| 5/7 | torture: Trace long read-side delaysinclude/ kernel/ | +14 | 3 replies | |
| 6/7 | rcu: Make expedited grace periods recheck dyntick idle statekernel/ kernel/ | +12 | 5 replies | |
| 7/7 | rcu: Don't kick unless grace period or requestkernel/ | +2 | 0 replies |
Reviews trailers per patch
2 of 7 patches have a Reviewed-by or Acked-by of their own; the series has one for all of them.
| Patch | Geert Uytterhoeven | Kirill A. Shutemov | Josh Triplett |
|---|---|---|---|
| Series | R-b | ||
| 1/7 | T-b | A-b | |
| 2/7 | |||
| 3/7 | |||
| 4/7 | |||
| 5/7 | R-b | ||
| 6/7 | |||
| 7/7 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes. Scroll the table sideways for all 3 reviewers.
Cover letter [PATCH tip/core/rcu 0/7] Miscellaneous fixes for 4.10
Hello!
This series contains miscellaneous fixes to RCU:
1. Tighten up __call_rcu's alignment check for the rcu_head structure
now that no arch does two-byte alignment of pointers.
2. Remove obsolete comment about when rcu_check_callbacks() was invoked.
3. Remove obsolete comment about which function opportunistically
notes grace periods beginnings and endings.
4. Update the RCU_TRACE Kconfig option's help text to note that
it enables event tracing in addition to debugfs, courtesy of Nikolay Borisov.
5. Add event tracing for long read-side delays in rcutorture
in order to better debug too-short grace periods.
6. Make expedited grace periods recheck dyntick-idle state to avoid
sending needless IPIs.
7. Don't kick CPUs unless there is grace-period activity currently
in progress.
Thanx, Paul
------------------------------------------------------------------------
include/trace/events/rcu.h | 5 ++++- kernel/rcu/rcutorture.c | 11 ++++++++++- kernel/rcu/tree.c | 17 ++++++----------- kernel/rcu/tree.h | 1 + kernel/rcu/tree_exp.h | 12 +++++++++++- lib/Kconfig.debug | 3 ++- 6 files changed, 34 insertions(+), 15 deletions(-)