Messages in this thread Patch in this message | | | From | Joe Damato <> | Subject | [RFC,net-next v2 6/8] net: ip: Support MSG_NTCOPY | Date | Sun, 12 Jun 2022 01:57:55 -0700 |
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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(+)
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 { -- 2.7.4
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