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authorAnton Blanchard <anton@samba.org>2010-02-10 01:03:06 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-02-17 14:03:15 +1100
commit66d99b883419b8df6d0a24ca957da7ab4831cf6e (patch)
tree78950f0267b698314487fa6c514481d811e6da0c /arch/powerpc/mm/hash_native_64.c
parent864b9e6fd76489aab422bac62162f57c52e06ed8 (diff)
downloadlinaro-lsk-66d99b883419b8df6d0a24ca957da7ab4831cf6e.tar.gz
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>
Diffstat (limited to 'arch/powerpc/mm/hash_native_64.c')
-rw-r--r--arch/powerpc/mm/hash_native_64.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 056d23a1b10..9e1aa4f99fa 100644
--- 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,