Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\skbuff.h Create Date:2022-07-28 05:52:41
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:skb_cow - copy header of skb when it is required*@skb: buffer to cow*@headroom: needed headroom* If the skb passed lacks sufficient headroom or its data part* is shared, data is reallocated. If reallocation fails, an error

Proto:static inline int skb_cow(struct sk_buff *skb, unsigned int headroom)

Type:int

Parameter:

TypeParameterName
struct sk_buff *skb
unsigned intheadroom
3139  Return __skb_cow(skb, headroom, skb_cloned - is the buffer a clone*@skb: buffer to check* Returns true if the buffer was generated with skb_clone() and is* one of multiple shared copies of the buffer. Cloned buffers are* shared data so must not be written to under normal circumstances.)