diff options
| author |   Jakub Kicinski <kuba@kernel.org> | 2020-09-16 11:45:23 -0700 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@kernel.org> | 2020-11-02 17:09:59 -0800 |
| commit | 891cd1f99dd94746f0caf5eea0121079178ee9bf (patch) | |
| tree | 20e4b802f8d13dbbb6a814d22fedc0d98316e489 /include/linux/rcupdate_trace.h | |
| parent | sched: Un-hide lockdep_tasklist_lock_is_held() for !LOCKDEP (diff) | |
| download | linux-dev-891cd1f99dd94746f0caf5eea0121079178ee9bf.tar.xz linux-dev-891cd1f99dd94746f0caf5eea0121079178ee9bf.zip | |
rcu: Un-hide lockdep maps for !LOCKDEP
Currently, variables used only within lockdep expressions are flagged as
unused, requiring that these variables' declarations be decorated with
either #ifdef or __maybe_unused. This results in ugly code. This commit
therefore causes the RCU lock maps to be visible even when lockdep is not
enabled, thus removing the need for these decorations. This approach
further relies on dead-code elimination to remove any references to
functions or variables that are not available in non-lockdep kernels.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'include/linux/rcupdate_trace.h')
| -rw-r--r-- | include/linux/rcupdate_trace.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/rcupdate_trace.h b/include/linux/rcupdate_trace.h index 3e7919fc5f34..86c8f6c98412 100644 --- a/include/linux/rcupdate_trace.h +++ b/include/linux/rcupdate_trace.h @@ -11,10 +11,10 @@ #include <linux/sched.h> #include <linux/rcupdate.h> -#ifdef CONFIG_DEBUG_LOCK_ALLOC - extern struct lockdep_map rcu_trace_lock_map; +#ifdef CONFIG_DEBUG_LOCK_ALLOC + static inline int rcu_read_lock_trace_held(void) { return lock_is_held(&rcu_trace_lock_map); |