Repleace smp_mb() in arch_write_unlock() and __clear_bit_unlock() to
smp_mb__before_llsc() call which does "release" barrier functionality.
It seems like it was missed in commit f252ffd50c97dae87b45f1dbad24f71358ccfbd6
during introduction of "acquire" and "release" semantics.
Signed-off-by: Leonid Yegoshin <leonid.yegos...@imgtec.com>
---
arch/mips/include/asm/bitops.h | 2 +-
arch/mips/include/asm/spinlock.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index 0cf29bd5dc5c..ce9666cf1499 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -469,7 +469,7 @@ static inline int test_and_change_bit(unsigned long nr,
*/
static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long
*addr)
{
- smp_mb();
+ smp_mb__before_llsc();
__clear_bit(nr, addr);
}
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index 1fca2e0793dc..7c7f3b2bd3de 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -317,7 +317,7 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
static inline void arch_write_unlock(arch_rwlock_t *rw)
{
- smp_mb();
+ smp_mb__before_llsc();
__asm__ __volatile__(
" # arch_write_unlock \n"
--
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