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| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-08-06 15:50:58 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-08-10 15:11:25 -0400 |
| commit | bff1b208a5d1dbb2355822ef859edcb9be0379e4 (patch) | |
| tree | 14fad0cf56447502af1f714e22de707ad19f9a9d /include/linux/lockdep.h | |
| parent | da5b3ebb4527733299661229a8d035d64a4f0b1a (diff) | |
| download | linux-bff1b208a5d1dbb2355822ef859edcb9be0379e4.tar.gz linux-bff1b208a5d1dbb2355822ef859edcb9be0379e4.tar.bz2 linux-bff1b208a5d1dbb2355822ef859edcb9be0379e4.zip | |
tracing: Partial revert of "tracing: Centralize preemptirq tracepoints and unify their usage"
Joel Fernandes created a nice patch that cleaned up the duplicate hooks used
by lockdep and irqsoff latency tracer. It made both use tracepoints. But it
caused lockdep to trigger several false positives. We have not figured out
why yet, but removing lockdep from using the trace event hooks and just call
its helper functions directly (like it use to), makes the problem go away.
This is a partial revert of the clean up patch c3bc8fd637a9 ("tracing:
Centralize preemptirq tracepoints and unify their usage") that adds direct
calls for lockdep, but also keeps most of the clean up done to get rid of
the horrible preprocessor if statements.
Link: http://lkml.kernel.org/r/20180806155058.5ee875f4@gandalf.local.home
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Fixes: c3bc8fd637a9 ("tracing: Centralize preemptirq tracepoints and unify their usage")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/lockdep.h')
| -rw-r--r-- | include/linux/lockdep.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h index a8113357ceeb..b0d0b51c4d85 100644 --- a/include/linux/lockdep.h +++ b/include/linux/lockdep.h @@ -267,7 +267,6 @@ struct held_lock { * Initialization, self-test and debugging-output methods: */ extern void lockdep_init(void); -extern void lockdep_init_early(void); extern void lockdep_reset(void); extern void lockdep_reset_lock(struct lockdep_map *lock); extern void lockdep_free_key_range(void *start, unsigned long size); @@ -408,7 +407,6 @@ static inline void lockdep_on(void) # define lock_set_class(l, n, k, s, i) do { } while (0) # define lock_set_subclass(l, s, i) do { } while (0) # define lockdep_init() do { } while (0) -# define lockdep_init_early() do { } while (0) # define lockdep_init_map(lock, name, key, sub) \ do { (void)(name); (void)(key); } while (0) # define lockdep_set_class(lock, key) do { (void)(key); } while (0) |