diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/sched.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 2775c1652ba4..eee7cef28f1a 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -705,7 +705,9 @@ static void __spu_schedule(struct spu *spu, struct spu_context *ctx) static void spu_schedule(struct spu *spu, struct spu_context *ctx) { - spu_acquire(ctx); + /* not a candidate for interruptible because it's called either + from the scheduler thread or from spu_deactivate */ + mutex_lock(&ctx->state_mutex); __spu_schedule(spu, ctx); spu_release(ctx); } @@ -823,7 +825,9 @@ static int __spu_deactivate(struct spu_context *ctx, int force, int max_prio) else { spu_release(ctx); spu_schedule(spu, new); - spu_acquire(ctx); + /* this one can't easily be made + interruptible */ + mutex_lock(&ctx->state_mutex); } } } @@ -867,7 +871,8 @@ static noinline void spusched_tick(struct spu_context *ctx) struct spu *spu = NULL; u32 status; - spu_acquire(ctx); + if (spu_acquire(ctx)) + BUG(); /* a kernel thread never has signals pending */ if (ctx->state != SPU_STATE_RUNNABLE) goto out; |