---

yaml --- r: 17224 b: refs/heads/master c: 762cf6d h: refs/heads/master v: v3
git-mirror · Jan 9, 2006 · 0ca276d · 0ca276d
1 parent 04360eb
commit 0ca276d
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Showing 2 changed files with 7 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c902be71dc6d5e8473bd021feafc8c3608e2b82a
+refs/heads/master: 762cf6dac2623473e83bb271f2bbe97d2355c64d
diff --git a/trunk/arch/powerpc/platforms/cell/spufs/context.c b/trunk/arch/powerpc/platforms/cell/spufs/context.c
@@ -120,27 +120,29 @@ int spu_acquire_runnable(struct spu_context *ctx)
 		ctx->spu->prio = current->prio;
 		return 0;
 	}
+	up_read(&ctx->state_sema);
+
+	down_write(&ctx->state_sema);
 	/* ctx is about to be freed, can't acquire any more */
 	if (!ctx->owner) {
 		ret = -EINVAL;
 		goto out;
 	}
-	up_read(&ctx->state_sema);
 
-	down_write(&ctx->state_sema);
 	if (ctx->state == SPU_STATE_SAVED) {
 		ret = spu_activate(ctx, 0);
 		ctx->state = SPU_STATE_RUNNABLE;
 	}
-	downgrade_write(&ctx->state_sema);
 	if (ret)
 		goto out;
 
+	downgrade_write(&ctx->state_sema);
 	/* On success, we return holding the lock */
+
 	return ret;
 out:
 	/* Release here, to simplify calling code. */
-	up_read(&ctx->state_sema);
+	up_write(&ctx->state_sema);
 
 	return ret;
 }