| __alloc_skb(9) - phpMan
__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)
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