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Diffstat (limited to 'include/net/xsk_buff_pool.h')
-rw-r--r--include/net/xsk_buff_pool.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
index 01755b838c74..eaa8386dbc63 100644
--- a/include/net/xsk_buff_pool.h
+++ b/include/net/xsk_buff_pool.h
@@ -73,6 +73,11 @@ struct xsk_buff_pool {
bool dma_need_sync;
bool unaligned;
void *addrs;
+ /* Mutual exclusion of the completion ring in the SKB mode. Two cases to protect:
+ * NAPI TX thread and sendmsg error paths in the SKB destructor callback and when
+ * sockets share a single cq when the same netdev and queue id is shared.
+ */
+ spinlock_t cq_lock;
struct xdp_buff_xsk *free_heads[];
};