[POWERPC] avoid SPU_ACTIVATE_NOWAKE optimization

This optimization was added recently but is still buggy,
so back it out for now.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 2f25e68b4bac..7dbf57c30282 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -263,7 +263,6 @@ static void spu_prio_wait(struct spu_context *ctx)
 {
         DEFINE_WAIT(wait);
 
-        set_bit(SPU_SCHED_WAKE, &ctx->sched_flags);
         prepare_to_wait_exclusive(&ctx->stop_wq, &wait, TASK_INTERRUPTIBLE);
         if (!signal_pending(current)) {
                 mutex_unlock(&ctx->state_mutex);
@@ -272,7 +271,6 @@ static void spu_prio_wait(struct spu_context *ctx)
         }
         __set_current_state(TASK_RUNNING);
         remove_wait_queue(&ctx->stop_wq, &wait);
-        clear_bit(SPU_SCHED_WAKE, &ctx->sched_flags);
 }
 
 /**
@@ -292,7 +290,7 @@ static void spu_reschedule(struct spu *spu)
         best = sched_find_first_bit(spu_prio->bitmap);
         if (best < MAX_PRIO) {
                 struct spu_context *ctx = spu_grab_context(best);
-                if (ctx && test_bit(SPU_SCHED_WAKE, &ctx->sched_flags))
+                if (ctx)
                         wake_up(&ctx->stop_wq);
         }
         spin_unlock(&spu_prio->runq_lock);
@@ -414,8 +412,7 @@ int spu_activate(struct spu_context *ctx, unsigned long flags)
                 }
 
                 spu_add_to_rq(ctx);
-                if (!(flags & SPU_ACTIVATE_NOWAKE))
-                        spu_prio_wait(ctx);
+                spu_prio_wait(ctx);
                 spu_del_from_rq(ctx);
         } while (!signal_pending(current));