__PSKB_COPY_FCLONE(9)                    Linux Networking                   __PSKB_COPY_FCLONE(9)



NAME
       __pskb_copy_fclone - create copy of an sk_buff with private head.

SYNOPSIS
       struct sk_buff * __pskb_copy_fclone(struct sk_buff * skb, int headroom, gfp_t gfp_mask,
                                           bool fclone);

ARGUMENTS
       skb
           buffer to copy

       headroom
           headroom of new skb

       gfp_mask
           allocation priority

       fclone
           if true allocate the copy of the skb from the fclone cache instead of the head cache;
           it is recommended to set this to true for the cases where the copy will likely be
           cloned

DESCRIPTION
       Make a copy of both an sk_buff and part of its data, located in header. Fragmented data
       remain shared. This is used when the caller wishes to modify only header of sk_buff and
       needs private copy of the header to alter. Returns NULL on failure or the pointer to the
       buffer on success. The returned buffer has a reference count of 1.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                     __PSKB_COPY_FCLONE(9)