Re: [Qemu-devel] [PATCH] virtio-blk: trivial code optimization

2015-11-08 Thread Gonglei
On 2015/11/6 20:54, Paolo Bonzini wrote: > > > On 06/11/2015 11:35, Stefan Hajnoczi wrote: if (niov + req->qiov.niov > IOV_MAX) { merge = false; +goto unmerge; } /* merge would exceed maximum

Re: [Qemu-devel] [PATCH] virtio-blk: trivial code optimization

2015-11-06 Thread Stefan Hajnoczi
On Fri, Nov 06, 2015 at 09:04:57AM +0800, arei.gong...@huawei.com wrote: > diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c > index 093e475..752586d 100644 > --- a/hw/block/virtio-blk.c > +++ b/hw/block/virtio-blk.c > @@ -409,18 +409,20 @@ void virtio_blk_submit_multireq(BlockBackend

Re: [Qemu-devel] [PATCH] virtio-blk: trivial code optimization

2015-11-06 Thread Paolo Bonzini
On 06/11/2015 11:35, Stefan Hajnoczi wrote: >> > if (niov + req->qiov.niov > IOV_MAX) { >> > merge = false; >> > +goto unmerge; >> > } >> > >> > /* merge would exceed maximum transfer length of backend >> > device */ >> >

[Qemu-devel] [PATCH] virtio-blk: trivial code optimization

2015-11-05 Thread arei.gonglei
From: Gonglei Signed-off-by: Gonglei --- hw/block/virtio-blk.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index 093e475..752586d 100644 --- a/hw/block/virtio-blk.c +++