diff options
| author | Li Zhong | 2013-01-24 21:51:13 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt | 2013-01-29 11:35:06 +1100 |
| commit | 94c95cfbfe784eca5f4b96955e41bda1318605bc (patch) | |
| tree | b53ed3b764c16cd798ad4113aed7a6a66e513a60 | |
| parent | 5e249d4528528c9a77da051a89ec7f99d31b83eb (diff) | |
powerpc: Avoid debug_smp_processor_id() check in SHARED_PROCESSOR
Use local_paca directly in macro SHARED_PROCESSOR, as all processors
have the same value for the field shared_proc, so we don't need care
racy here.
Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/include/asm/spinlock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index 7124fc06ad47..5b23f910ee57 100644 --- a/arch/powerpc/include/asm/spinlock.h +++ b/arch/powerpc/include/asm/spinlock.h @@ -96,7 +96,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock) #if defined(CONFIG_PPC_SPLPAR) /* We only yield to the hypervisor if we are in shared processor mode */ -#define SHARED_PROCESSOR (get_lppaca()->shared_proc) +#define SHARED_PROCESSOR (local_paca->lppaca_ptr->shared_proc) extern void __spin_yield(arch_spinlock_t *lock); extern void __rw_yield(arch_rwlock_t *lock); #else /* SPLPAR */ |