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Date: Fri, 11 Jan 2008 16:50:18 -0500 (EST) From: Kiyoshi Ueda <k-ueda@...jp.nec.com> To: jens.axboe@...cle.com Cc: rusty@...tcorp.com.au, linux-kernel@...r.kernel.org, j-nomura@...jp.nec.com, k-ueda@...jp.nec.com Subject: [PATCH 1/3] block: change virtio_blk to use blk-end-request This patch converts virtio_blk to use __blk_end_request() directly so that end_{queued|dequeued}_request() can be removed. Related 'uptodate' argument is converted to 'error'. __blk_end_request() takes care of dequeueing request like below: if (!list_empty(&rq->queuelist)) blkdev_dequeue_request(rq); In the case of virtio_blk, blkdev_dequeue_request() has been done in do_virtblk_request() and the queuelist is empty in blk_done(). So __blk_end_request() doesn't call blkdev_dequeue_request() and the behavior of blk_done() doesn't change. Cc: Rusty Russell <rusty@...tcorp.com.au> Signed-off-by: Kiyoshi Ueda <k-ueda@...jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@...jp.nec.com> --- drivers/block/virtio_blk.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) Index: 2.6.24-rc7/drivers/block/virtio_blk.c =================================================================== --- 2.6.24-rc7.orig/drivers/block/virtio_blk.c +++ 2.6.24-rc7/drivers/block/virtio_blk.c @@ -45,20 +45,20 @@ static bool blk_done(struct virtqueue *v spin_lock_irqsave(&vblk->lock, flags); while ((vbr = vblk->vq->vq_ops->get_buf(vblk->vq, &len)) != NULL) { - int uptodate; + int error; switch (vbr->in_hdr.status) { case VIRTIO_BLK_S_OK: - uptodate = 1; + error = 0; break; case VIRTIO_BLK_S_UNSUPP: - uptodate = -ENOTTY; + error = -ENOTTY; break; default: - uptodate = 0; + error = -EIO; break; } - end_dequeued_request(vbr->req, uptodate); + __blk_end_request(vbr->req, error, blk_rq_bytes(vbr->req)); list_del(&vbr->list); mempool_free(vbr, vblk->pool); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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