| Message ID | 1655024280-23827-7-git-send-email-jdamato@fastly.com (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Nontemporal copies in sendmsg path | expand |
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 00b4bf2..75c8627 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -933,6 +933,7 @@ ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk struct msghdr *msg = from; if (skb->ip_summed == CHECKSUM_PARTIAL) { + msg_set_iter_copy_type(msg); if (!copy_from_iter_full(to, len, &msg->msg_iter)) return -EFAULT; } else {
Support nontemporal copies of IP data when applications set the MSG_NTCOPY flag and checksumming is offloaded. ip_generic_getfrag is used by UDP and raw sockets, so this change effectively enables MSG_NTCOPY support for both. Signed-off-by: Joe Damato <jdamato@fastly.com> --- net/ipv4/ip_output.c | 1 + 1 file changed, 1 insertion(+)