Allow more than one in-flight request in the virtio ring. This allows
the host driver to submit requests in parallel.
Signed-off-by: Marcelo Tosatti <[EMAIL PROTECTED]>
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 3b1a68d..5bb041f 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -30,6 +30,8 @@ struct virtio_blk
struct scatterlist sg[VIRTIO_MAX_SG];
};
+#define VIRTIO_BLK_POOL_SIZE 32
+
struct virtblk_req
{
struct list_head list;
@@ -202,7 +204,8 @@ static int virtblk_probe(struct virtio_device *vdev)
goto out_free_vblk;
}
- vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req));
+ vblk->pool = mempool_create_kmalloc_pool(VIRTIO_BLK_POOL_SIZE,
+ sizeof(struct virtblk_req));
if (!vblk->pool) {
err = -ENOMEM;
goto out_free_vq;
-------------------------------------------------------------------------
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