| Message ID | tip-a76ff6884bfedfafcbb0d9c84c7a6b6a546cba6d@git.kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h index a3bf5be..1124f59 100644 --- a/arch/powerpc/include/asm/barrier.h +++ b/arch/powerpc/include/asm/barrier.h @@ -89,5 +89,6 @@ do { \ #define smp_mb__before_atomic() smp_mb() #define smp_mb__after_atomic() smp_mb() +#define smp_mb__before_spinlock() smp_mb() #endif /* _ASM_POWERPC_BARRIER_H */
Commit-ID: a76ff6884bfedfafcbb0d9c84c7a6b6a546cba6d Gitweb: http://git.kernel.org/tip/a76ff6884bfedfafcbb0d9c84c7a6b6a546cba6d Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com> AuthorDate: Wed, 1 Apr 2015 08:19:59 -0700 Committer: Paul E. McKenney <paulmck@linux.vnet.ibm.com> CommitDate: Wed, 27 May 2015 12:58:01 -0700 powerpc: Fix smp_mb__before_spinlock() Currently, smp_mb__before_spinlock() is defined to be smp_wmb() in core code, but this is not sufficient on PowerPC. This patch therefore supplies an override for the generic definition to strengthen smp_mb__before_spinlock() to smp_mb(), as is needed on PowerPC. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: <linuxppc-dev@lists.ozlabs.org> --- arch/powerpc/include/asm/barrier.h | 1 + 1 file changed, 1 insertion(+)