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Date: Mon, 20 Jun 2022 15:20:22 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...com,
rostedt@...dmis.org
Subject: [PATCH rcu 0/12] Miscellaneous fixes for v5.20
Hello!
This series contains miscellaneous fixes:
1. Decrease FQS scan wait time in case of callback overloading.
2. Avoid tracing a few functions executed in stop machine, courtesy
of Patrick Wang.
3. Add rnp->cbovldmask check in rcutree_migrate_callbacks(),
courtesy of Zqiang.
4. Immediately boost preempted readers for strict grace periods,
courtesy of Zqiang.
5. Forbid RCU_STRICT_GRACE_PERIOD in TINY_RCU kernels.
6. locking/csd_lock: Change csdlock_debug from early_param to
__setup, courtesy of Chen Zhongjin.
7. tiny: Record kvfree_call_rcu() call stack for KASAN, courtesy
of Johannes Berg.
8. Cleanup RCU urgency state for offline CPU, courtesy of Zqiang.
9. Remove useless monitor_todo flag, courtesy of "Joel Fernandes
(Google)".
10. Initialize first_gp_fqs at declaration in rcu_gp_fqs().
11. Add comment to describe GP-done condition in fqs loop, courtesy
of Neeraj Upadhyay.
12. Block less aggressively for expedited grace periods.
Thanx, Paul
------------------------------------------------------------------------
b/include/linux/rcutiny.h | 11 +++++++++-
b/kernel/rcu/Kconfig.debug | 2 -
b/kernel/rcu/srcutree.c | 20 ++++++++++++------
b/kernel/rcu/tiny.c | 14 +++++++++++++
b/kernel/rcu/tree.c | 5 ++++
b/kernel/rcu/tree_plugin.h | 6 ++---
b/kernel/smp.c | 4 +--
kernel/rcu/tree.c | 48 ++++++++++++++++++++++++++-------------------
kernel/rcu/tree_plugin.h | 3 +-
9 files changed, 78 insertions(+), 35 deletions(-)
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