Re: [PATCH v2] virtio-blk: Avoid use-after-free on suspend/resume

From: Jens Axboe
Date: Thu Aug 11 2022 - 19:04:09 EST


On 8/10/22 10:09 AM, Shigeru Yoshida wrote:
> +static inline struct virtio_blk_vq *get_virtio_blk_vq(struct blk_mq_hw_ctx *hctx)
> +{
> + struct virtio_blk *vblk = hctx->queue->queuedata;
> + struct virtio_blk_vq *vq = &vblk->vqs[hctx->queue_num];
> +
> + return vq;
> +}

Would probably be cleaner as:

static struct virtio_blk_vq *get_virtio_blk_vq(struct blk_mq_hw_ctx *hctx)
{
struct virtio_blk *vblk = hctx->queue->queuedata;

return &vblk->vqs[hctx->queue_num];
}

dropping the 'vq' variable, and also dropping the inline as the compiler
will work that out anyway.

Apart from that minor nit, looks good to me.

--
Jens Axboe