__ALLOC_SKB(9)                           Linux Networking                          __ALLOC_SKB(9)



NAME
       __alloc_skb - allocate a network buffer

SYNOPSIS
       struct sk_buff * __alloc_skb(unsigned int size, gfp_t gfp_mask, int flags, int node);

ARGUMENTS
       size
           size to allocate

       gfp_mask
           allocation mask

       flags
           If SKB_ALLOC_FCLONE is set, allocate from fclone cache instead of head cache and
           allocate a cloned (child) skb. If SKB_ALLOC_RX is set, __GFP_MEMALLOC will be used for
           allocations in case the data is required for writeback

       node
           numa node to allocate memory on

DESCRIPTION
       Allocate a new sk_buff. The returned buffer has no headroom and a tail room of at least
       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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                            __ALLOC_SKB(9)