This patch move the bh enabling a little bit earlier, this will be used for factoring out the core XDP logic of tuntap.
Signed-off-by: Jason Wang <[email protected]> --- drivers/net/tun.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index d3677a544b56..372caf7d67d9 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1726,22 +1726,18 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun, goto err_xdp; } } + rcu_read_unlock(); + local_bh_enable(); skb = build_skb(buf, buflen); - if (!skb) { - rcu_read_unlock(); - local_bh_enable(); + if (!skb) return ERR_PTR(-ENOMEM); - } skb_reserve(skb, pad - delta); skb_put(skb, len); get_page(alloc_frag->page); alloc_frag->offset += buflen; - rcu_read_unlock(); - local_bh_enable(); - return skb; err_redirect: -- 2.17.1 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
