Re: [PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Michael S. Tsirkin 
On Wed, Nov 20, 2013 at 07:08:02AM -0500, Jason Wang wrote:
> 
> 
> - 原始邮件 -
> > On Wed, Nov 20, 2013 at 05:07:25PM +0800, Jason Wang wrote:
> > > When mergeable buffer were used, we only put the first page buf leave the
> > > rest
> > > of buffers in the virt queue. This will cause the driver could not get the
> > > correct head buffer any more. Fix this by dropping the rest of buffers for
> > > this
> > > packet.
> > > 
> > > The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
> > > (virtio_net: Defer skb allocation in receive path).
> > > 
> > > Cc: Rusty Russell 
> > > Cc: Michael S. Tsirkin 
> > > Cc: Michael Dalton 
> > > Cc: Eric Dumazet 
> > > Cc: Shirley Ma 
> > > Signed-off-by: Jason Wang 
> > > ---
> > > This patch was needed for stable
> > > ---
> > >  drivers/net/virtio_net.c | 18 +-
> > >  1 file changed, 17 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> > > index 7bab4de..24fd502 100644
> > > --- a/drivers/net/virtio_net.c
> > > +++ b/drivers/net/virtio_net.c
> > > @@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
> > >   netif_wake_subqueue(vi->dev, vq2txq(vq));
> > >  }
> > >  
> > > +static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
> > > +{
> > > + char *buf;
> > > + int len;
> > > +
> > > + while (--num_buf && (buf = virtqueue_get_buf(rq->vq, )) != NULL) {
> > > + --rq->num;
> > > + put_page(virt_to_head_page(buf));
> > > + }
> > > +}
> > > +
> > 
> > This is the same code we have in receive_mergeable anyway.
> > So let's reuse that.
> > 
> > 
> 
> receive_mergeable() was called after page_to_skb() was called and 
> there's lots of conditions check there. I'm not sure how could we 
> reuse them.

I posted a patch showing how :)

> > >  /* Called from bottom half context */
> > >  static struct sk_buff *page_to_skb(struct receive_queue *rq,
> > >  struct page *page, unsigned int offset,
> > > @@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct
> > > receive_queue *rq,
> > >  
> > >   /* copy small packet so we can reuse these pages for small data */
> > >   skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
> > > - if (unlikely(!skb))
> > > + if (unlikely(!skb)) {
> > > + if (vi->mergeable_rx_bufs) {
> > > + hdr = (struct skb_vnet_hdr *)p;
> > > + drop_mergeable_buffer(rq, hdr->mhdr.num_buffers);
> > > + }
> > >   return NULL;
> > > + }
> > >  
> > >   hdr = skb_vnet_hdr(skb);
> > >  
> > > --
> > > 1.8.3.2
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majord...@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at  http://www.tux.org/lkml/
> > 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Jason Wang 


- 原始邮件 -
> On Wed, Nov 20, 2013 at 05:07:25PM +0800, Jason Wang wrote:
> > When mergeable buffer were used, we only put the first page buf leave the
> > rest
> > of buffers in the virt queue. This will cause the driver could not get the
> > correct head buffer any more. Fix this by dropping the rest of buffers for
> > this
> > packet.
> > 
> > The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
> > (virtio_net: Defer skb allocation in receive path).
> > 
> > Cc: Rusty Russell 
> > Cc: Michael S. Tsirkin 
> > Cc: Michael Dalton 
> > Cc: Eric Dumazet 
> > Cc: Shirley Ma 
> > Signed-off-by: Jason Wang 
> > ---
> > This patch was needed for stable
> > ---
> >  drivers/net/virtio_net.c | 18 +-
> >  1 file changed, 17 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> > index 7bab4de..24fd502 100644
> > --- a/drivers/net/virtio_net.c
> > +++ b/drivers/net/virtio_net.c
> > @@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
> > netif_wake_subqueue(vi->dev, vq2txq(vq));
> >  }
> >  
> > +static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
> > +{
> > +   char *buf;
> > +   int len;
> > +
> > +   while (--num_buf && (buf = virtqueue_get_buf(rq->vq, )) != NULL) {
> > +   --rq->num;
> > +   put_page(virt_to_head_page(buf));
> > +   }
> > +}
> > +
> 
> This is the same code we have in receive_mergeable anyway.
> So let's reuse that.
> 
> 

receive_mergeable() was called after page_to_skb() was called and 
there's lots of conditions check there. I'm not sure how could we 
reuse them.
> >  /* Called from bottom half context */
> >  static struct sk_buff *page_to_skb(struct receive_queue *rq,
> >struct page *page, unsigned int offset,
> > @@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct
> > receive_queue *rq,
> >  
> > /* copy small packet so we can reuse these pages for small data */
> > skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
> > -   if (unlikely(!skb))
> > +   if (unlikely(!skb)) {
> > +   if (vi->mergeable_rx_bufs) {
> > +   hdr = (struct skb_vnet_hdr *)p;
> > +   drop_mergeable_buffer(rq, hdr->mhdr.num_buffers);
> > +   }
> > return NULL;
> > +   }
> >  
> > hdr = skb_vnet_hdr(skb);
> >  
> > --
> > 1.8.3.2
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majord...@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Michael S. Tsirkin 
On Wed, Nov 20, 2013 at 05:07:25PM +0800, Jason Wang wrote:
> When mergeable buffer were used, we only put the first page buf leave the rest
> of buffers in the virt queue. This will cause the driver could not get the
> correct head buffer any more. Fix this by dropping the rest of buffers for 
> this
> packet.
> 
> The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
> (virtio_net: Defer skb allocation in receive path).
> 
> Cc: Rusty Russell 
> Cc: Michael S. Tsirkin 
> Cc: Michael Dalton 
> Cc: Eric Dumazet 
> Cc: Shirley Ma 
> Signed-off-by: Jason Wang 
> ---
> This patch was needed for stable
> ---
>  drivers/net/virtio_net.c | 18 +-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index 7bab4de..24fd502 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
>   netif_wake_subqueue(vi->dev, vq2txq(vq));
>  }
>  
> +static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
> +{
> + char *buf;
> + int len;
> +
> + while (--num_buf && (buf = virtqueue_get_buf(rq->vq, )) != NULL) {
> + --rq->num;
> + put_page(virt_to_head_page(buf));
> + }
> +}
> +

This is the same code we have in receive_mergeable anyway.
So let's reuse that.


>  /* Called from bottom half context */
>  static struct sk_buff *page_to_skb(struct receive_queue *rq,
>  struct page *page, unsigned int offset,
> @@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct receive_queue 
> *rq,
>  
>   /* copy small packet so we can reuse these pages for small data */
>   skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
> - if (unlikely(!skb))
> + if (unlikely(!skb)) {
> + if (vi->mergeable_rx_bufs) {
> + hdr = (struct skb_vnet_hdr *)p;
> + drop_mergeable_buffer(rq, hdr->mhdr.num_buffers);
> + }
>   return NULL;
> + }
>  
>   hdr = skb_vnet_hdr(skb);
>  
> -- 
> 1.8.3.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Jason Wang 
When mergeable buffer were used, we only put the first page buf leave the rest
of buffers in the virt queue. This will cause the driver could not get the
correct head buffer any more. Fix this by dropping the rest of buffers for this
packet.

The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
(virtio_net: Defer skb allocation in receive path).

Cc: Rusty Russell 
Cc: Michael S. Tsirkin 
Cc: Michael Dalton 
Cc: Eric Dumazet 
Cc: Shirley Ma 
Signed-off-by: Jason Wang 
---
This patch was needed for stable
---
 drivers/net/virtio_net.c | 18 +-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 7bab4de..24fd502 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
netif_wake_subqueue(vi->dev, vq2txq(vq));
 }
 
+static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
+{
+   char *buf;
+   int len;
+
+   while (--num_buf && (buf = virtqueue_get_buf(rq->vq, )) != NULL) {
+   --rq->num;
+   put_page(virt_to_head_page(buf));
+   }
+}
+
 /* Called from bottom half context */
 static struct sk_buff *page_to_skb(struct receive_queue *rq,
   struct page *page, unsigned int offset,
@@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct receive_queue 
*rq,
 
/* copy small packet so we can reuse these pages for small data */
skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
-   if (unlikely(!skb))
+   if (unlikely(!skb)) {
+   if (vi->mergeable_rx_bufs) {
+   hdr = (struct skb_vnet_hdr *)p;
+   drop_mergeable_buffer(rq, hdr->mhdr.num_buffers);
+   }
return NULL;
+   }
 
hdr = skb_vnet_hdr(skb);
 
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Jason Wang 
When mergeable buffer were used, we only put the first page buf leave the rest
of buffers in the virt queue. This will cause the driver could not get the
correct head buffer any more. Fix this by dropping the rest of buffers for this
packet.

The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
(virtio_net: Defer skb allocation in receive path).

Cc: Rusty Russell ru...@rustcorp.com.au
Cc: Michael S. Tsirkin m...@redhat.com
Cc: Michael Dalton mwdal...@google.com
Cc: Eric Dumazet eduma...@google.com
Cc: Shirley Ma x...@us.ibm.com
Signed-off-by: Jason Wang jasow...@redhat.com
---
This patch was needed for stable
---
 drivers/net/virtio_net.c | 18 +-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 7bab4de..24fd502 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
netif_wake_subqueue(vi-dev, vq2txq(vq));
 }
 
+static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
+{
+   char *buf;
+   int len;
+
+   while (--num_buf  (buf = virtqueue_get_buf(rq-vq, len)) != NULL) {
+   --rq-num;
+   put_page(virt_to_head_page(buf));
+   }
+}
+
 /* Called from bottom half context */
 static struct sk_buff *page_to_skb(struct receive_queue *rq,
   struct page *page, unsigned int offset,
@@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct receive_queue 
*rq,
 
/* copy small packet so we can reuse these pages for small data */
skb = netdev_alloc_skb_ip_align(vi-dev, GOOD_COPY_LEN);
-   if (unlikely(!skb))
+   if (unlikely(!skb)) {
+   if (vi-mergeable_rx_bufs) {
+   hdr = (struct skb_vnet_hdr *)p;
+   drop_mergeable_buffer(rq, hdr-mhdr.num_buffers);
+   }
return NULL;
+   }
 
hdr = skb_vnet_hdr(skb);
 
-- 
1.8.3.2

--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Michael S. Tsirkin 
On Wed, Nov 20, 2013 at 05:07:25PM +0800, Jason Wang wrote:
 When mergeable buffer were used, we only put the first page buf leave the rest
 of buffers in the virt queue. This will cause the driver could not get the
 correct head buffer any more. Fix this by dropping the rest of buffers for 
 this
 packet.
 
 The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
 (virtio_net: Defer skb allocation in receive path).
 
 Cc: Rusty Russell ru...@rustcorp.com.au
 Cc: Michael S. Tsirkin m...@redhat.com
 Cc: Michael Dalton mwdal...@google.com
 Cc: Eric Dumazet eduma...@google.com
 Cc: Shirley Ma x...@us.ibm.com
 Signed-off-by: Jason Wang jasow...@redhat.com
 ---
 This patch was needed for stable
 ---
  drivers/net/virtio_net.c | 18 +-
  1 file changed, 17 insertions(+), 1 deletion(-)
 
 diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
 index 7bab4de..24fd502 100644
 --- a/drivers/net/virtio_net.c
 +++ b/drivers/net/virtio_net.c
 @@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
   netif_wake_subqueue(vi-dev, vq2txq(vq));
  }
  
 +static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
 +{
 + char *buf;
 + int len;
 +
 + while (--num_buf  (buf = virtqueue_get_buf(rq-vq, len)) != NULL) {
 + --rq-num;
 + put_page(virt_to_head_page(buf));
 + }
 +}
 +

This is the same code we have in receive_mergeable anyway.
So let's reuse that.


  /* Called from bottom half context */
  static struct sk_buff *page_to_skb(struct receive_queue *rq,
  struct page *page, unsigned int offset,
 @@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct receive_queue 
 *rq,
  
   /* copy small packet so we can reuse these pages for small data */
   skb = netdev_alloc_skb_ip_align(vi-dev, GOOD_COPY_LEN);
 - if (unlikely(!skb))
 + if (unlikely(!skb)) {
 + if (vi-mergeable_rx_bufs) {
 + hdr = (struct skb_vnet_hdr *)p;
 + drop_mergeable_buffer(rq, hdr-mhdr.num_buffers);
 + }
   return NULL;
 + }
  
   hdr = skb_vnet_hdr(skb);
  
 -- 
 1.8.3.2
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Jason Wang 


- 原始邮件 -
 On Wed, Nov 20, 2013 at 05:07:25PM +0800, Jason Wang wrote:
  When mergeable buffer were used, we only put the first page buf leave the
  rest
  of buffers in the virt queue. This will cause the driver could not get the
  correct head buffer any more. Fix this by dropping the rest of buffers for
  this
  packet.
  
  The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
  (virtio_net: Defer skb allocation in receive path).
  
  Cc: Rusty Russell ru...@rustcorp.com.au
  Cc: Michael S. Tsirkin m...@redhat.com
  Cc: Michael Dalton mwdal...@google.com
  Cc: Eric Dumazet eduma...@google.com
  Cc: Shirley Ma x...@us.ibm.com
  Signed-off-by: Jason Wang jasow...@redhat.com
  ---
  This patch was needed for stable
  ---
   drivers/net/virtio_net.c | 18 +-
   1 file changed, 17 insertions(+), 1 deletion(-)
  
  diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
  index 7bab4de..24fd502 100644
  --- a/drivers/net/virtio_net.c
  +++ b/drivers/net/virtio_net.c
  @@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
  netif_wake_subqueue(vi-dev, vq2txq(vq));
   }
   
  +static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
  +{
  +   char *buf;
  +   int len;
  +
  +   while (--num_buf  (buf = virtqueue_get_buf(rq-vq, len)) != NULL) {
  +   --rq-num;
  +   put_page(virt_to_head_page(buf));
  +   }
  +}
  +
 
 This is the same code we have in receive_mergeable anyway.
 So let's reuse that.
 
 

receive_mergeable() was called after page_to_skb() was called and 
there's lots of conditions check there. I'm not sure how could we 
reuse them.
   /* Called from bottom half context */
   static struct sk_buff *page_to_skb(struct receive_queue *rq,
 struct page *page, unsigned int offset,
  @@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct
  receive_queue *rq,
   
  /* copy small packet so we can reuse these pages for small data */
  skb = netdev_alloc_skb_ip_align(vi-dev, GOOD_COPY_LEN);
  -   if (unlikely(!skb))
  +   if (unlikely(!skb)) {
  +   if (vi-mergeable_rx_bufs) {
  +   hdr = (struct skb_vnet_hdr *)p;
  +   drop_mergeable_buffer(rq, hdr-mhdr.num_buffers);
  +   }
  return NULL;
  +   }
   
  hdr = skb_vnet_hdr(skb);
   
  --
  1.8.3.2
 --
 To unsubscribe from this list: send the line unsubscribe linux-kernel in
 the body of a message to majord...@vger.kernel.org
 More majordomo info at  http://vger.kernel.org/majordomo-info.html
 Please read the FAQ at  http://www.tux.org/lkml/
 
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Re: [PATCH net 1/3] virtio-net: drop the rest of buffers when we can't allocate skb

2013-11-20 Thread Michael S. Tsirkin 
On Wed, Nov 20, 2013 at 07:08:02AM -0500, Jason Wang wrote:
 
 
 - 原始邮件 -
  On Wed, Nov 20, 2013 at 05:07:25PM +0800, Jason Wang wrote:
   When mergeable buffer were used, we only put the first page buf leave the
   rest
   of buffers in the virt queue. This will cause the driver could not get the
   correct head buffer any more. Fix this by dropping the rest of buffers for
   this
   packet.
   
   The bug was introduced by commit 9ab86bbcf8be755256f0a5e994e0b38af6b4d399
   (virtio_net: Defer skb allocation in receive path).
   
   Cc: Rusty Russell ru...@rustcorp.com.au
   Cc: Michael S. Tsirkin m...@redhat.com
   Cc: Michael Dalton mwdal...@google.com
   Cc: Eric Dumazet eduma...@google.com
   Cc: Shirley Ma x...@us.ibm.com
   Signed-off-by: Jason Wang jasow...@redhat.com
   ---
   This patch was needed for stable
   ---
drivers/net/virtio_net.c | 18 +-
1 file changed, 17 insertions(+), 1 deletion(-)
   
   diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
   index 7bab4de..24fd502 100644
   --- a/drivers/net/virtio_net.c
   +++ b/drivers/net/virtio_net.c
   @@ -222,6 +222,17 @@ static void skb_xmit_done(struct virtqueue *vq)
 netif_wake_subqueue(vi-dev, vq2txq(vq));
}

   +static void drop_mergeable_buffer(struct receive_queue *rq, int num_buf)
   +{
   + char *buf;
   + int len;
   +
   + while (--num_buf  (buf = virtqueue_get_buf(rq-vq, len)) != NULL) {
   + --rq-num;
   + put_page(virt_to_head_page(buf));
   + }
   +}
   +
  
  This is the same code we have in receive_mergeable anyway.
  So let's reuse that.
  
  
 
 receive_mergeable() was called after page_to_skb() was called and 
 there's lots of conditions check there. I'm not sure how could we 
 reuse them.

I posted a patch showing how :)

/* Called from bottom half context */
static struct sk_buff *page_to_skb(struct receive_queue *rq,
struct page *page, unsigned int offset,
   @@ -237,8 +248,13 @@ static struct sk_buff *page_to_skb(struct
   receive_queue *rq,

 /* copy small packet so we can reuse these pages for small data */
 skb = netdev_alloc_skb_ip_align(vi-dev, GOOD_COPY_LEN);
   - if (unlikely(!skb))
   + if (unlikely(!skb)) {
   + if (vi-mergeable_rx_bufs) {
   + hdr = (struct skb_vnet_hdr *)p;
   + drop_mergeable_buffer(rq, hdr-mhdr.num_buffers);
   + }
 return NULL;
   + }

 hdr = skb_vnet_hdr(skb);

   --
   1.8.3.2
  --
  To unsubscribe from this list: send the line unsubscribe linux-kernel in
  the body of a message to majord...@vger.kernel.org
  More majordomo info at  http://vger.kernel.org/majordomo-info.html
  Please read the FAQ at  http://www.tux.org/lkml/
  
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/