diff options
Diffstat (limited to 'arch/powerpc/mm/hash_native_64.c')
| -rw-r--r-- | arch/powerpc/mm/hash_native_64.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index bdaac28193f7..fbd1acc3b8d9 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -15,6 +15,7 @@ #include <linux/spinlock.h> #include <linux/bitops.h> #include <linux/of.h> +#include <linux/processor.h> #include <linux/threads.h> #include <linux/smp.h> @@ -184,8 +185,10 @@ static inline void native_lock_hpte(struct hash_pte *hptep) while (1) { if (!test_and_set_bit_lock(HPTE_LOCK_BIT, word)) break; + spin_begin(); while(test_bit(HPTE_LOCK_BIT, word)) - cpu_relax(); + spin_cpu_relax(); + spin_end(); } } |