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doc: Add CONFIG_RCU_STRICT_GRACE_PERIOD to checklist.rst

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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>
This commit is contained in:
Paul E. McKenney 2023-11-24 16:29:01 -08:00 committed by Boqun Feng
parent 3cf5016121
commit 739337d482
1 changed files with 6 additions and 0 deletions
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6
Documentation/RCU/checklist.rst
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@ -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