linux-kernel - Re: [PATCH 4/4] drm/virtio: Use IDAs more efficiently

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Date:   Wed, 26 Sep 2018 09:04:55 -0700
From:   Matthew Wilcox <willy@...radead.org>
To:     David Airlie <airlied@...ux.ie>, Gerd Hoffmann <kraxel@...hat.com>
Cc:     dri-devel@...ts.freedesktop.org,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] drm/virtio: Use IDAs more efficiently

On Wed, Sep 26, 2018 at 09:00:31AM -0700, Matthew Wilcox wrote:
> @@ -59,6 +59,7 @@ static int virtio_gpu_context_create(struct virtio_gpu_device *vgdev,
>  
>  	if (handle < 0)
>  		return handle;
> +	handle++;
>  	virtio_gpu_cmd_context_create(vgdev, handle, nlen, name);
>  	return handle;
>  }

Uh.  This line is missing.

-       int handle = ida_alloc_min(&vgdev->ctx_id_ida, 1, GFP_KERNEL);
+       int handle = ida_alloc(&vgdev->ctx_id_ida, GFP_KERNEL);

It'll be there in v2 ;-)