Commit-ID: 54d47a2be5e7f928fb77b2f5a0761f6bd3c9dbff
Gitweb: http://git.kernel.org/tip/54d47a2be5e7f928fb77b2f5a0761f6bd3c9dbff
Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
AuthorDate: Tue, 4 May 2010 04:54:47 +0200
Committer: Frederic Weisbecker <fweisbec@xxxxxxxxx>
CommitDate: Tue, 4 May 2010 05:38:16 +0200
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@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
---
kernel/lockdep_internals.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
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 @@ DECLARE_PER_CPU(struct lockdep_stats, lockdep_stats);
#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) ({ \
--
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