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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>
This commit is contained in:
Anton Blanchard 2010-02-10 01:03:06 +00:00 committed by Benjamin Herrenschmidt
parent 864b9e6fd7
commit 66d99b8834
1 changed files with 2 additions and 3 deletions
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5
arch/powerpc/mm/hash_native_64.c
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@ -122,7 +122,7 @@ static inline void native_lock_hpte(struct hash_pte *hptep)
unsigned long *word = &hptep->v; unsigned long *word = &hptep->v;
while (1) { while (1) {
if (!test_and_set_bit(HPTE_LOCK_BIT, word)) if (!test_and_set_bit_lock(HPTE_LOCK_BIT, word))
break; break;
while(test_bit(HPTE_LOCK_BIT, word)) while(test_bit(HPTE_LOCK_BIT, word))
cpu_relax(); cpu_relax();
@ -133,8 +133,7 @@ static inline void native_unlock_hpte(struct hash_pte *hptep)
{ {
unsigned long *word = &hptep->v; unsigned long *word = &hptep->v;
asm volatile("lwsync":::"memory"); clear_bit_unlock(HPTE_LOCK_BIT, word);
clear_bit(HPTE_LOCK_BIT, word);
} }
static long native_hpte_insert(unsigned long hpte_group, unsigned long va, static long native_hpte_insert(unsigned long hpte_group, unsigned long va,