__ALLOC_SKB

Section: Linux Networking (9)
Updated: February 2011
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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.  

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