pskb_expand_head man page on Scientific

pskb_expand_head man page on Scientific

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PSKB_EXPAND_HEAD(9)	       Linux Networking		   PSKB_EXPAND_HEAD(9)

NAME
       pskb_expand_head - reallocate header of sk_buff

SYNOPSIS
       int pskb_expand_head(struct sk_buff * skb, int nhead, int ntail,
			    gfp_t gfp_mask);

ARGUMENTS
       skb
	   buffer to reallocate

       nhead
	   room to add at head

       ntail
	   room to add at tail

       gfp_mask
	   allocation priority

DESCRIPTION
       Expands (or creates identical copy, if nhead and ntail are zero) header
       of skb.	sk_buff itself is not changed.	sk_buff MUST have reference
       count of 1. Returns zero in the case of success or error, if expansion
       failed. In the last case, sk_buff is not changed.

       All the pointers pointing into skb header may change and must be
       reloaded after call to this function.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013		   PSKB_EXPAND_HEAD(9)

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