lockdep: No need to disable preemption in debug atomic ops
No need to disable preemption in the debug_atomic_* ops, as
we ensure interrupts are disabled already.
So let's use the __this_cpu_ops() rather than this_cpu_ops() that
enclose the ops in a preempt disabled section.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
diff --git a/kernel/lockdep_internals.h b/kernel/lockdep_internals.h
index 8d929c7..4f560cf 100644
--- a/kernel/lockdep_internals.h
+++ b/kernel/lockdep_internals.h
@@ -144,12 +144,12 @@
#define debug_atomic_inc(ptr) { \
WARN_ON_ONCE(!irqs_disabled()); \
- this_cpu_inc(lockdep_stats.ptr); \
+ __this_cpu_inc(lockdep_stats.ptr); \
}
#define debug_atomic_dec(ptr) { \
WARN_ON_ONCE(!irqs_disabled()); \
- this_cpu_dec(lockdep_stats.ptr); \
+ __this_cpu_dec(lockdep_stats.ptr); \
}
#define debug_atomic_read(ptr) ({ \
