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SKB_SHARE_CHECK(9) Linux Networking SKB_SHARE_CHECK(9)
NAME
skb_share_check - check if buffer is shared and if so clone it
SYNOPSIS
struct sk_buff * skb_share_check(struct sk_buff * skb, gfp_t pri);
ARGUMENTS
skb
buffer to check
pri
priority for memory allocation
DESCRIPTION
If the buffer is shared the buffer is cloned and the old copy drops a
reference. A new clone with a single reference is returned. If the
buffer is not shared the original buffer is returned. When being called
from interrupt status or with spinlocks held pri must be GFP_ATOMIC.
NULL is returned on a memory allocation failure.
COPYRIGHT
Kernel Hackers Manual 3.8. June 2014 SKB_SHARE_CHECK(9)
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