Miscellaneous fixes for 4.7
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- v1 Latest6 patches 0 repliesNew
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/6 | rcu: Consolidate dumping of ftrace bufferinclude/ kernel/ kernel/ | +18 | 0 replies | |
| 2/6 | rcu: Awaken grace-period kthread when stalledkernel/ | +3 | 0 replies | |
| 3/6 | rcu: Make FQS schedule advance only if FQS happenedkernel/ | +15 | 0 replies | |
| 4/6 | rcu: Awaken grace-period kthread if too long since FQSkernel/ kernel/ | +39 | 0 replies | |
| 5/6 | rcu: Remove superfluous versions of rcu_read_lock_sched_held()include/ kernel/ | +3 | 0 replies | |
| 6/6 | rcu: Dump ftrace buffer when kicking grace-period kthreadkernel/ | +1 | 0 replies |
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Cover letter [PATCH tip/core/rcu 0/6] Miscellaneous fixes for 4.7
Hello!
This series provides miscellaneous fixes for RCU:
1. Consolidate RCU's single-shot dumping of the ftrace buffer.
This is a bit widespread, so the upcoming documentation, expedited-grace-period, and torture patchsets are also based on this patch.
2. Awaken grace-period kthread at RCU CPU stall-warning time.
3. Move the FQS timeout farther into the future only if the current
wakeup actually resulted in an FQS scan.
4. Awaken grace-period kthread if too long since FQS.
5. Remove superfluous versions of rcu_read_lock_sched_held(),
courtesy of Boqun Feng.
6. Dump ftrace buffer when kicking grace-period kthread.
Thanx, Paul
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include/linux/rcupdate.h | 30 +++++++++---------- kernel/rcu/rcutorture.c | 17 +---------- kernel/rcu/tree.c | 71 ++++++++++++++++++++++++++++++++++++++--------- kernel/rcu/tree.h | 2 + kernel/rcu/update.c | 4 +- 5 files changed, 79 insertions(+), 45 deletions(-)