This is a note to let you know that I've just added the patch titled netfilter: nft_set_rbtree: use read spinlock to avoid datapath contention to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: netfilter-nft_set_rbtree-use-read-spinlock-to-avoid-datapath-contention.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it.