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| author | John Ogness <john.ogness@linutronix.de> | 2022-11-07 15:15:59 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2022-11-09 18:29:06 +0100 |
| commit | f733615e39aa2d6ddeef33b7b2c9aa6a5a2c2785 (patch) | |
| tree | 0465eb8d503f14866e875d760c6b5ec293194bb2 | |
| parent | srcu: Debug NMI safety even on archs that don't require it (diff) | |
| download | linux-f733615e39aa2d6ddeef33b7b2c9aa6a5a2c2785.tar.xz linux-f733615e39aa2d6ddeef33b7b2c9aa6a5a2c2785.zip | |
rcu: Implement lockdep_rcu_enabled for !CONFIG_DEBUG_LOCK_ALLOC
Provide an implementation for debug_lockdep_rcu_enabled() when
CONFIG_DEBUG_LOCK_ALLOC is not enabled. This allows code to check
if rcu lockdep debugging is available without needing an extra
check if CONFIG_DEBUG_LOCK_ALLOC is enabled.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
| -rw-r--r-- | include/linux/rcupdate.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 08605ce7379d..65178c40ab6f 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -340,6 +340,11 @@ static inline int rcu_read_lock_any_held(void) return !preemptible(); } +static inline int debug_lockdep_rcu_enabled(void) +{ + return 0; +} + #endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */ #ifdef CONFIG_PROVE_RCU |