powerpc: Convert open coded native hashtable bit lock

Now we have real bit locks use them instead of open coding it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 056d23a1b105f851757a082bcb04001e374a48b3..9e1aa4f99fac0814e0daff3c229bd8e862c8ddfe 100644 (file)
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -122,7 +122,7 @@ static inline void native_lock_hpte(struct hash_pte *hptep)
        unsigned long *word = &hptep->v;
 
        while (1) {
-               if (!test_and_set_bit(HPTE_LOCK_BIT, word))
+               if (!test_and_set_bit_lock(HPTE_LOCK_BIT, word))
                        break;
                while(test_bit(HPTE_LOCK_BIT, word))
                        cpu_relax();
@@ -133,8 +133,7 @@ static inline void native_unlock_hpte(struct hash_pte *hptep)
 {
        unsigned long *word = &hptep->v;
 
-       asm volatile("lwsync":::"memory");
-       clear_bit(HPTE_LOCK_BIT, word);
+       clear_bit_unlock(HPTE_LOCK_BIT, word);
 }
 
 static long native_hpte_insert(unsigned long hpte_group, unsigned long va,