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Commit 66d99b88 authored by Anton Blanchard's avatar Anton Blanchard Committed by Benjamin Herrenschmidt
Browse files

powerpc: Convert open coded native hashtable bit lock 



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

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 864b9e6f

arch/powerpc/mm/hash_native_64.c

+2 −3
Original line number Diff line number Diff line
@@ -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,