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| author |   David S. Miller <davem@davemloft.net> | 2021-02-10 13:30:12 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-10 13:30:12 -0800 |
| commit | dc9d87581d464e7b7d38853d6904b70b6c920d99 (patch) | |
| tree | 15aa27fefb867814899c0a0c194adf327675ba10 /drivers/net/xen-netback | |
| parent | Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue (diff) | |
| parent | Merge tag 'pm-5.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff) | |
| download | linux-dev-dc9d87581d464e7b7d38853d6904b70b6c920d99.tar.xz linux-dev-dc9d87581d464e7b7d38853d6904b70b6c920d99.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'drivers/net/xen-netback')
| -rw-r--r-- | drivers/net/xen-netback/rx.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c index b8febe1d1bfd..accc991d153f 100644 --- a/drivers/net/xen-netback/rx.c +++ b/drivers/net/xen-netback/rx.c @@ -38,10 +38,15 @@ static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue) RING_IDX prod, cons; struct sk_buff *skb; int needed; + unsigned long flags; + + spin_lock_irqsave(&queue->rx_queue.lock, flags); skb = skb_peek(&queue->rx_queue); - if (!skb) + if (!skb) { + spin_unlock_irqrestore(&queue->rx_queue.lock, flags); return false; + } needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE); if (skb_is_gso(skb)) @@ -49,6 +54,8 @@ static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue) if (skb->sw_hash) needed++; + spin_unlock_irqrestore(&queue->rx_queue.lock, flags); + do { prod = queue->rx.sring->req_prod; cons = queue->rx.req_cons; |