| Submitter | Li Zhong |
|---|---|
| Date | Jan. 25, 2013, 7:51 a.m. |
| Message ID | <1359100273.2666.51.camel@ThinkPad-T5421.cn.ibm.com> |
| Download | mbox | patch |
| Permalink | /patch/215569/ |
| State | Accepted |
| Commit | 94c95cfbfe784eca5f4b96955e41bda1318605bc |
| Headers | show |
Comments
Patch
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index 7124fc0..5b23f91 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 */
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> --- arch/powerpc/include/asm/spinlock.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)