Name
__alloc_skb —
allocate a network buffer
Synopsis
struct sk_buff * __alloc_skb ( | unsigned int size, |
| | gfp_t gfp_mask, |
| | int fclone, |
| | int node); |
Arguments
size
size to allocate
gfp_mask
allocation mask
fclone
allocate from fclone cache instead of head cache
and allocate a cloned (child) skb
node
numa node to allocate memory on
Description
Allocate a new sk_buff. The returned buffer has no headroom and a
tail room of size bytes. The object has a reference count of one.
The return is the buffer. On a failure the return is NULL.
Buffers may only be allocated from interrupts using a gfp_mask of
GFP_ATOMIC.