vserver 1.9.5.x5

[linux-2.6.git] / arch / sparc64 / lib / debuglocks.c

diff --git a/arch/sparc64/lib/debuglocks.c b/arch/sparc64/lib/debuglocks.c
index 9fb4ded..46e5ebf 100644 (file)
--- a/arch/sparc64/lib/debuglocks.c
+++ b/arch/sparc64/lib/debuglocks.c
@@ -172,6 +172,7 @@ void _do_read_unlock (rwlock_t *rw, char *str)
 runlock_again:
        /* Spin trying to decrement the counter using casx.  */
        __asm__ __volatile__(
+"      membar  #StoreLoad | #LoadLoad\n"
 "      ldx     [%0], %%g5\n"
 "      sub     %%g5, 1, %%g7\n"
 "      casx    [%0], %%g5, %%g7\n"
@@ -290,6 +291,7 @@ void _do_write_unlock(rwlock_t *rw)
        current->thread.smp_lock_count--;
 wlock_again:
        __asm__ __volatile__(
+"      membar  #StoreLoad | #LoadLoad\n"
 "      mov     1, %%g3\n"
 "      sllx    %%g3, 63, %%g3\n"
 "      ldx     [%0], %%g5\n"