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authorPaul E. McKenney <paulmck@kernel.org>2023-11-24 16:29:01 -0800
committerBoqun Feng <boqun.feng@gmail.com>2024-02-14 07:53:49 -0800
commit739337d482f12b9eff062586ba64f008fcc6efba (patch)
treedfa26fdd9ec208ea4b7d344945bdb34c2ca87ea4 /Documentation/RCU
parent3cf501612108b8a7a4cebf8a6ac1d7575080c88f (diff)
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doc: Add CONFIG_RCU_STRICT_GRACE_PERIOD to checklist.rst
This commit adds CONFIG_RCU_STRICT_GRACE_PERIOD to the list of debugging Kconfig options in checklist.rst. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Diffstat (limited to 'Documentation/RCU')
-rw-r--r--Documentation/RCU/checklist.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/RCU/checklist.rst b/Documentation/RCU/checklist.rst
index 98a622f77248..addd5c1547a4 100644
--- a/Documentation/RCU/checklist.rst
+++ b/Documentation/RCU/checklist.rst
@@ -491,6 +491,12 @@ over a rather long period of time, but improvements are always welcome!
since the last time that you passed that same object to
call_rcu() (or friends).
+ CONFIG_RCU_STRICT_GRACE_PERIOD:
+ combine with KASAN to check for pointers leaked out
+ of RCU read-side critical sections. This Kconfig
+ option is tough on both performance and scalability,
+ and so is limited to four-CPU systems.
+
__rcu sparse checks:
tag the pointer to the RCU-protected data structure
with __rcu, and sparse will warn you if you access that