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

struct sk_buff * skb

buffer to copy

struct iov_iter * 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

September 2017 Kernel Hackers Manual 4.12