skb_copy_ubufs9
Copy userspace skb frags buffers to kernel
Arguments
skb
the skb to modify
gfp_mask
allocation priority
Overview
This must be called on SKBTX_DEV_ZEROCOPY skb. It will copy all frags into kernel and drop the reference to userspace pages.
If this function is called from an interrupt gfp_mask must be GFP_ATOMIC.
Returns 0 on success or a negative error code on failure to allocate kernel memory to copy to.
History
- Debian 9 (Stretch): the text shown here
- Debian 8 (Jessie)