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WSL2-Linux-Kernel
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Граф коммитов

10 Коммитов

Автор SHA1 Сообщение Дата
Paolo Abeni 021a17ed79 pfifo_fast: drop unneeded additional lock on dequeue 
After the previous patch, for NOLOCK qdiscs, q->seqlock is
always held when the dequeue() is invoked, we can drop
any additional locking to protect such operation.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-05-17 12:46:54 -04:00
Michael S. Tsirkin f417dc2818 skb_array: use __ptr_ring_empty 
__skb_array_empty should use __ptr_ring_empty since that's the only
legal lockless function.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-01-29 12:02:54 -05:00
John Fastabend 4a86a4cf68 net: skb_array: expose peek API 
This adds a peek routine to skb_array.h for use with qdisc.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-12-08 13:32:26 -05:00
Eric Dumazet 81fbfe8ada ptr_ring: use kmalloc_array() 
As found by syzkaller, malicious users can set whatever tx_queue_len
on a tun device and eventually crash the kernel.

Lets remove the ALIGN(XXX, SMP_CACHE_BYTES) thing since a small
ring buffer is not fast anyway.

Fixes: 2e0ab8ca83 ("ptr_ring: array based FIFO for pointers")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-08-16 16:28:47 -07:00
Jason Wang 3528c1a52e skb_array: introduce batch dequeuing 
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-05-18 10:07:40 -04:00
Jason Wang 3acb696015 skb_array: introduce skb_array_unconsume 
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-05-18 10:07:39 -04:00
Jason Wang bf900b3dbe skb_array: add wrappers for resizing 
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-07-01 05:32:17 -04:00
Jason Wang fd68adec9d skb_array: minor tweak 
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-07-01 05:32:16 -04:00
Michael S. Tsirkin 7d7072e3ba skb_array: resize support 
Update skb_array after ptr_ring API changes.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-06-15 13:58:27 -07:00
Michael S. Tsirkin ad69f35d1d skb_array: array based FIFO for skbs 
A simple array based FIFO of pointers.  Intended for net stack so uses
skbs for type safety. Implemented as a set of wrappers around ptr_ring.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-06-15 13:58:27 -07:00