1SKB_UNSHARE(9)                 Linux Networking                 SKB_UNSHARE(9)
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NAME

6       skb_unshare - make a copy of a shared buffer
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SYNOPSIS

9       struct sk_buff * skb_unshare(struct sk_buff * skb, gfp_t pri);
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ARGUMENTS

12       skb
13           buffer to check
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15       pri
16           priority for memory allocation
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DESCRIPTION

19       If the socket buffer is a clone then this function creates a new copy
20       of the data, drops a reference count on the old copy and returns the
21       new copy with the reference count at 1. If the buffer is not a clone
22       the original buffer is returned. When called with a spinlock held or
23       from interrupt state pri must be GFP_ATOMIC
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25       NULL is returned on a memory allocation failure.
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28Kernel Hackers Manual 3.10         June 2019                    SKB_UNSHARE(9)
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