| __pskb_copy_fclone(9) - phpMan
__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)
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