From 7a28a1549f9514f3b0dd3dde5c7337ba5d44fba3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 8 May 2008 15:26:32 +1000 Subject: [PATCH] [POWERPC] spufs: don't requeue victim contex in find_victim if it's not in spu_run We should not requeue the victim context in find_victim if the owner is not in spu_run. It's first not needed because leaving the context on the spu is an optimization and second is harmful because it means the owner could re-enter spu_run when the context is on the runqueue and trip the BUG_ON in __spu_update_sched_info. Signed-off-by: Christoph Hellwig Signed-off-by: Jeremy Kerr --- arch/powerpc/platforms/cell/spufs/sched.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 1df7d6d152c..8a05ac863a2 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -659,7 +659,8 @@ static struct spu *find_victim(struct spu_context *ctx) victim->stats.invol_ctx_switch++; spu->stats.invol_ctx_switch++; - spu_add_to_rq(victim); + if (test_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags)) + spu_add_to_rq(victim); mutex_unlock(&victim->state_mutex); -- 2.20.1