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Subject[PATCH 2/3] lockref: use cpu_relax_simple()
Date
Make use of cpu_relax_simple() so architectures can override the default
cpu_relax() semantics.
This is especially useful for s390, where cpu_relax() means that the we
yield() the current (virtual) cpu and therefore is very expensive.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
lib/lockref.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/lockref.c b/lib/lockref.c
index 677d036..1a00c33 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -19,7 +19,7 @@
if (likely(old.lock_count == prev.lock_count)) { \
SUCCESS; \
} \
- cpu_relax(); \
+ cpu_relax_simple(); \
} \
} while (0)

--
1.8.3.4


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