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SKB_UNSHARE(9) | Linux Networking | SKB_UNSHARE(9) |
NAME¶
skb_unshare - make a copy of a shared bufferSYNOPSIS¶
struct sk_buff * skb_unshare(struct sk_buff * skb, gfp_t pri);
ARGUMENTS¶
skbbuffer to check
pri
priority for memory allocation
DESCRIPTION¶
If the socket buffer is a clone then this function creates a new copy of the data, drops a reference count on the old copy and returns the new copy with the reference count at 1. If the buffer is not a clone the original buffer is returned. When called with a spinlock held or from interrupt state pri must be GFP_ATOMICNULL is returned on a memory allocation failure.
COPYRIGHT¶
April 2019 | Kernel Hackers Manual 4.9. |