[POWERPC] spufs: block fault handlers in spu_acquire_runnable

This change disables the logic that faults-in spu contexts under the
covers from the page fault handler.  When a fault requires a runnable
context, the handler will block until the context is scheduled by
other means.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index ee80de07c0b..52215aa2f3c 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -682,6 +682,7 @@ int spu_activate(struct spu_context *ctx, unsigned long flags)
 			spu_bind_context(spu, ctx);
 			cbe_spu_info[node].nr_active++;
 			mutex_unlock(&cbe_spu_info[node].list_mutex);
+			wake_up_all(&ctx->run_wq);
 			return 0;
 		}