Pre-gp_seq miscellaneous fixes for v4.19
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- v1 Latest5 patches 0 repliesNew
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/5 | rcu: Add debugging info to assertionkernel/ kernel/ kernel/ | +42 | 0 replies | |
| 2/5 | rcu: Use the proper lockdep annotation in dump_blkd_tasks()kernel/ | +1 | 0 replies | |
| 3/5 | rcu: Exclude near-simultaneous RCU CPU stall warningskernel/ | +11 | 0 replies | |
| 4/5 | rcu: Diagnostics for grace-period hangskernel/ kernel/ | +63 | 0 replies | |
| 5/5 | rcu: Make rcu_gp_cleanup() write only once to ->gp_flagskernel/ | +2 | 0 replies |
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Cover letter [PATCH tip/core/rcu 0/5] Pre-gp_seq miscellaneous fixes for v4.19
Hello!
The following miscellaneous fixes come before the infamous ->gp_seq conversion:
1. Add debugging info to the assertion detecting tasks queued on
the ->blkd_tasks list at unexpected times.
2. Use the proper lockdep annotation in dump_blkd_tasks(), courtesy
of Boqun Feng.
3. Exclude near-simultaneous RCU CPU stall warnings, thus reducing
the probability of interleaved (and thus inscrutable) warnings.
4. Add diagnostics for failure to respond to a request for a new
grace period.
5. Make rcu_gp_cleanup() write only once to ->gp_flags.
Thanx, Paul
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tree.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++------------ tree.h | 4 ++ tree_plugin.h | 40 ++++++++++++++++++++++- 3 files changed, 119 insertions(+), 22 deletions(-)