Scroll to navigation

ZEROCOPY_SG_FROM_ITE(9) Linux Networking ZEROCOPY_SG_FROM_ITE(9)

NAME

zerocopy_sg_from_iter - Build a zerocopy datagram from an iov_iter

SYNOPSIS

int zerocopy_sg_from_iter(struct sk_buff * skb, struct iov_iter * from);

ARGUMENTS

skb
buffer to copy
from
the source to copy from

DESCRIPTION

The function will first copy up to headlen, and then pin the userspace pages and build frags through them.
Returns 0, -EFAULT or -EMSGSIZE.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.