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| author |   Paul E. McKenney <paulmck@kernel.org> | 2022-12-14 11:41:44 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-01-03 17:28:34 -0800 |
| commit | 0cae5ded535c3a80aed94f119bbd4ee3ae284a65 (patch) | |
| tree | e0a33635c321e56bdfa7bcdefd23d7bcf9fb86fe /scripts/generate_rust_analyzer.py | |
| parent | rcu: Upgrade header comment for poll_state_synchronize_rcu() (diff) | |
| download | linux-rng-0cae5ded535c3a80aed94f119bbd4ee3ae284a65.tar.xz linux-rng-0cae5ded535c3a80aed94f119bbd4ee3ae284a65.zip | |
rcu: Make RCU_LOCKDEP_WARN() avoid early lockdep checks
Currently, RCU_LOCKDEP_WARN() checks the condition before checking
to see if lockdep is still enabled. This is necessary to avoid the
false-positive splats fixed by commit 3066820034b5dd ("rcu: Reject
RCU_LOCKDEP_WARN() false positives"). However, the current state can
result in false-positive splats during early boot before lockdep is fully
initialized. This commit therefore checks debug_lockdep_rcu_enabled()
both before and after checking the condition, thus avoiding both sets
of false-positive error reports.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Reported-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions