* [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
@ 2020-08-16 14:22 Li Qiang
2020-08-17 7:34 ` David Hildenbrand
2020-08-28 1:21 ` Li Qiang
0 siblings, 2 replies; 7+ messages in thread
From: Li Qiang @ 2020-08-16 14:22 UTC (permalink / raw)
To: mst, david; +Cc: Li Qiang, liq3ea, qemu-devel
If error occurs while processing the virtio request we should call
'virtqueue_detach_element' to detach the element from the virtqueue
before free the elem.
Signed-off-by: Li Qiang <liq3ea@163.com>
---
Change since v1:
Change the subject
Avoid using the goto label
hw/virtio/virtio-mem.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
index 7740fc613f..e6ffc781b3 100644
--- a/hw/virtio/virtio-mem.c
+++ b/hw/virtio/virtio-mem.c
@@ -318,6 +318,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
if (iov_to_buf(elem->out_sg, elem->out_num, 0, &req, len) < len) {
virtio_error(vdev, "virtio-mem protocol violation: invalid request"
" size: %d", len);
+ virtqueue_detach_element(vq, elem, 0);
g_free(elem);
return;
}
@@ -327,6 +328,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
virtio_error(vdev, "virtio-mem protocol violation: not enough space"
" for response: %zu",
iov_size(elem->in_sg, elem->in_num));
+ virtqueue_detach_element(vq, elem, 0);
g_free(elem);
return;
}
@@ -348,6 +350,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
default:
virtio_error(vdev, "virtio-mem protocol violation: unknown request"
" type: %d", type);
+ virtqueue_detach_element(vq, elem, 0);
g_free(elem);
return;
}
--
2.17.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
2020-08-16 14:22 [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs Li Qiang
@ 2020-08-17 7:34 ` David Hildenbrand
2020-08-28 1:21 ` Li Qiang
1 sibling, 0 replies; 7+ messages in thread
From: David Hildenbrand @ 2020-08-17 7:34 UTC (permalink / raw)
To: Li Qiang, mst; +Cc: liq3ea, qemu-devel
On 16.08.20 16:22, Li Qiang wrote:
> If error occurs while processing the virtio request we should call
> 'virtqueue_detach_element' to detach the element from the virtqueue
> before free the elem.
>
> Signed-off-by: Li Qiang <liq3ea@163.com>
Fixes: 910b25766b ("virtio-mem: Paravirtualized memory hot(un)plug")
Acked-by: David Hildenbrand <david@redhat.com>
@MST, can you please pick this up? Thanks!
> ---
> Change since v1:
> Change the subject
> Avoid using the goto label
>
> hw/virtio/virtio-mem.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
> index 7740fc613f..e6ffc781b3 100644
> --- a/hw/virtio/virtio-mem.c
> +++ b/hw/virtio/virtio-mem.c
> @@ -318,6 +318,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> if (iov_to_buf(elem->out_sg, elem->out_num, 0, &req, len) < len) {
> virtio_error(vdev, "virtio-mem protocol violation: invalid request"
> " size: %d", len);
> + virtqueue_detach_element(vq, elem, 0);
> g_free(elem);
> return;
> }
> @@ -327,6 +328,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> virtio_error(vdev, "virtio-mem protocol violation: not enough space"
> " for response: %zu",
> iov_size(elem->in_sg, elem->in_num));
> + virtqueue_detach_element(vq, elem, 0);
> g_free(elem);
> return;
> }
> @@ -348,6 +350,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> default:
> virtio_error(vdev, "virtio-mem protocol violation: unknown request"
> " type: %d", type);
> + virtqueue_detach_element(vq, elem, 0);
> g_free(elem);
> return;
> }
>
--
Thanks,
David / dhildenb
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
2020-08-16 14:22 [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs Li Qiang
2020-08-17 7:34 ` David Hildenbrand
@ 2020-08-28 1:21 ` Li Qiang
2020-09-07 1:36 ` Li Qiang
1 sibling, 1 reply; 7+ messages in thread
From: Li Qiang @ 2020-08-28 1:21 UTC (permalink / raw)
To: Li Qiang; +Cc: David Hildenbrand, Qemu Developers, Michael S. Tsirkin
Kindly ping.
Li Qiang <liq3ea@163.com> 于2020年8月16日周日 下午10:23写道：
>
> If error occurs while processing the virtio request we should call
> 'virtqueue_detach_element' to detach the element from the virtqueue
> before free the elem.
>
> Signed-off-by: Li Qiang <liq3ea@163.com>
> ---
> Change since v1:
> Change the subject
> Avoid using the goto label
>
> hw/virtio/virtio-mem.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
> index 7740fc613f..e6ffc781b3 100644
> --- a/hw/virtio/virtio-mem.c
> +++ b/hw/virtio/virtio-mem.c
> @@ -318,6 +318,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> if (iov_to_buf(elem->out_sg, elem->out_num, 0, &req, len) < len) {
> virtio_error(vdev, "virtio-mem protocol violation: invalid request"
> " size: %d", len);
> + virtqueue_detach_element(vq, elem, 0);
> g_free(elem);
> return;
> }
> @@ -327,6 +328,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> virtio_error(vdev, "virtio-mem protocol violation: not enough space"
> " for response: %zu",
> iov_size(elem->in_sg, elem->in_num));
> + virtqueue_detach_element(vq, elem, 0);
> g_free(elem);
> return;
> }
> @@ -348,6 +350,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> default:
> virtio_error(vdev, "virtio-mem protocol violation: unknown request"
> " type: %d", type);
> + virtqueue_detach_element(vq, elem, 0);
> g_free(elem);
> return;
> }
> --
> 2.17.1
>
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
2020-08-28 1:21 ` Li Qiang
@ 2020-09-07 1:36 ` Li Qiang
2020-09-08 8:55 ` David Hildenbrand
2020-09-08 14:10 ` Michael S. Tsirkin
0 siblings, 2 replies; 7+ messages in thread
From: Li Qiang @ 2020-09-07 1:36 UTC (permalink / raw)
To: Li Qiang; +Cc: David Hildenbrand, Qemu Developers, Michael S. Tsirkin
Ping!
Li Qiang <liq3ea@gmail.com> 于2020年8月28日周五 上午9:21写道：
>
> Kindly ping.
>
> Li Qiang <liq3ea@163.com> 于2020年8月16日周日 下午10:23写道：
> >
> > If error occurs while processing the virtio request we should call
> > 'virtqueue_detach_element' to detach the element from the virtqueue
> > before free the elem.
> >
> > Signed-off-by: Li Qiang <liq3ea@163.com>
> > ---
> > Change since v1:
> > Change the subject
> > Avoid using the goto label
> >
> > hw/virtio/virtio-mem.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
> > index 7740fc613f..e6ffc781b3 100644
> > --- a/hw/virtio/virtio-mem.c
> > +++ b/hw/virtio/virtio-mem.c
> > @@ -318,6 +318,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > if (iov_to_buf(elem->out_sg, elem->out_num, 0, &req, len) < len) {
> > virtio_error(vdev, "virtio-mem protocol violation: invalid request"
> > " size: %d", len);
> > + virtqueue_detach_element(vq, elem, 0);
> > g_free(elem);
> > return;
> > }
> > @@ -327,6 +328,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > virtio_error(vdev, "virtio-mem protocol violation: not enough space"
> > " for response: %zu",
> > iov_size(elem->in_sg, elem->in_num));
> > + virtqueue_detach_element(vq, elem, 0);
> > g_free(elem);
> > return;
> > }
> > @@ -348,6 +350,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > default:
> > virtio_error(vdev, "virtio-mem protocol violation: unknown request"
> > " type: %d", type);
> > + virtqueue_detach_element(vq, elem, 0);
> > g_free(elem);
> > return;
> > }
> > --
> > 2.17.1
> >
> >
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
2020-09-07 1:36 ` Li Qiang
@ 2020-09-08 8:55 ` David Hildenbrand
2020-09-08 14:10 ` Michael S. Tsirkin
1 sibling, 0 replies; 7+ messages in thread
From: David Hildenbrand @ 2020-09-08 8:55 UTC (permalink / raw)
To: Li Qiang, Li Qiang; +Cc: Qemu Developers, Michael S. Tsirkin
On 07.09.20 03:36, Li Qiang wrote:
> Ping!
>
Michael usually picks up patches and I only ack them. I guess he's busy,
because I acked already ~3 weeks ago
https://lkml.kernel.org/r/254210bc-9e7e-407d-3151-104944930103@redhat.com
--
Thanks,
David / dhildenb
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
2020-09-07 1:36 ` Li Qiang
2020-09-08 8:55 ` David Hildenbrand
@ 2020-09-08 14:10 ` Michael S. Tsirkin
2020-09-08 14:46 ` Li Qiang
1 sibling, 1 reply; 7+ messages in thread
From: Michael S. Tsirkin @ 2020-09-08 14:10 UTC (permalink / raw)
To: Li Qiang; +Cc: Li Qiang, Qemu Developers, David Hildenbrand
For some reason I didn't receive the original email.
Sorry.
Queued now.
On Mon, Sep 07, 2020 at 09:36:40AM +0800, Li Qiang wrote:
> Ping!
>
> Li Qiang <liq3ea@gmail.com> 于2020年8月28日周五 上午9:21写道：
> >
> > Kindly ping.
> >
> > Li Qiang <liq3ea@163.com> 于2020年8月16日周日 下午10:23写道：
> > >
> > > If error occurs while processing the virtio request we should call
> > > 'virtqueue_detach_element' to detach the element from the virtqueue
> > > before free the elem.
> > >
> > > Signed-off-by: Li Qiang <liq3ea@163.com>
> > > ---
> > > Change since v1:
> > > Change the subject
> > > Avoid using the goto label
> > >
> > > hw/virtio/virtio-mem.c | 3 +++
> > > 1 file changed, 3 insertions(+)
> > >
> > > diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
> > > index 7740fc613f..e6ffc781b3 100644
> > > --- a/hw/virtio/virtio-mem.c
> > > +++ b/hw/virtio/virtio-mem.c
> > > @@ -318,6 +318,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > > if (iov_to_buf(elem->out_sg, elem->out_num, 0, &req, len) < len) {
> > > virtio_error(vdev, "virtio-mem protocol violation: invalid request"
> > > " size: %d", len);
> > > + virtqueue_detach_element(vq, elem, 0);
> > > g_free(elem);
> > > return;
> > > }
> > > @@ -327,6 +328,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > > virtio_error(vdev, "virtio-mem protocol violation: not enough space"
> > > " for response: %zu",
> > > iov_size(elem->in_sg, elem->in_num));
> > > + virtqueue_detach_element(vq, elem, 0);
> > > g_free(elem);
> > > return;
> > > }
> > > @@ -348,6 +350,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > > default:
> > > virtio_error(vdev, "virtio-mem protocol violation: unknown request"
> > > " type: %d", type);
> > > + virtqueue_detach_element(vq, elem, 0);
> > > g_free(elem);
> > > return;
> > > }
> > > --
> > > 2.17.1
> > >
> > >
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs
2020-09-08 14:10 ` Michael S. Tsirkin
@ 2020-09-08 14:46 ` Li Qiang
0 siblings, 0 replies; 7+ messages in thread
From: Li Qiang @ 2020-09-08 14:46 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: Li Qiang, Qemu Developers, David Hildenbrand
Michael S. Tsirkin <mst@redhat.com> 于2020年9月8日周二 下午10:10写道：
>
> For some reason I didn't receive the original email.
> Sorry.
> Queued now.
>
Kindly notice:
Here is another patch for virtio-pmem.
https://lists.gnu.org/archive/html/qemu-devel/2020-08/msg02639.html
Thanks,
Li Qiang
> On Mon, Sep 07, 2020 at 09:36:40AM +0800, Li Qiang wrote:
> > Ping!
> >
> > Li Qiang <liq3ea@gmail.com> 于2020年8月28日周五 上午9:21写道：
> > >
> > > Kindly ping.
> > >
> > > Li Qiang <liq3ea@163.com> 于2020年8月16日周日 下午10:23写道：
> > > >
> > > > If error occurs while processing the virtio request we should call
> > > > 'virtqueue_detach_element' to detach the element from the virtqueue
> > > > before free the elem.
> > > >
> > > > Signed-off-by: Li Qiang <liq3ea@163.com>
> > > > ---
> > > > Change since v1:
> > > > Change the subject
> > > > Avoid using the goto label
> > > >
> > > > hw/virtio/virtio-mem.c | 3 +++
> > > > 1 file changed, 3 insertions(+)
> > > >
> > > > diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
> > > > index 7740fc613f..e6ffc781b3 100644
> > > > --- a/hw/virtio/virtio-mem.c
> > > > +++ b/hw/virtio/virtio-mem.c
> > > > @@ -318,6 +318,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > > > if (iov_to_buf(elem->out_sg, elem->out_num, 0, &req, len) < len) {
> > > > virtio_error(vdev, "virtio-mem protocol violation: invalid request"
> > > > " size: %d", len);
> > > > + virtqueue_detach_element(vq, elem, 0);
> > > > g_free(elem);
> > > > return;
> > > > }
> > > > @@ -327,6 +328,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > > > virtio_error(vdev, "virtio-mem protocol violation: not enough space"
> > > > " for response: %zu",
> > > > iov_size(elem->in_sg, elem->in_num));
> > > > + virtqueue_detach_element(vq, elem, 0);
> > > > g_free(elem);
> > > > return;
> > > > }
> > > > @@ -348,6 +350,7 @@ static void virtio_mem_handle_request(VirtIODevice *vdev, VirtQueue *vq)
> > > > default:
> > > > virtio_error(vdev, "virtio-mem protocol violation: unknown request"
> > > > " type: %d", type);
> > > > + virtqueue_detach_element(vq, elem, 0);
> > > > g_free(elem);
> > > > return;
> > > > }
> > > > --
> > > > 2.17.1
> > > >
> > > >
> >
>
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2020-09-08 14:48 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-16 14:22 [PATCH v2] virtio-mem: detach the element from the virtqueue when error occurs Li Qiang
2020-08-17 7:34 ` David Hildenbrand
2020-08-28 1:21 ` Li Qiang
2020-09-07 1:36 ` Li Qiang
2020-09-08 8:55 ` David Hildenbrand
2020-09-08 14:10 ` Michael S. Tsirkin
2020-09-08 14:46 ` Li Qiang
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