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| author | Eric Dumazet <edumazet@google.com> | 2013-10-17 16:27:07 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-18 00:08:51 -0400 |
| commit | 400dfd3ae899849b27d398ca7894e1b44430887f (patch) | |
| tree | 5478cafc2fd175ea7f2307e4eda1f6a9a8618733 /include/linux/skbuff.h | |
| parent | baf785bacc9f840104fc2dfedd2b72b5cbb4e103 (diff) | |
| download | lwn-400dfd3ae899849b27d398ca7894e1b44430887f.tar.gz lwn-400dfd3ae899849b27d398ca7894e1b44430887f.zip | |
net: refactor sk_page_frag_refill()
While working on virtio_net new allocation strategy to increase
payload/truesize ratio, we found that refactoring sk_page_frag_refill()
was needed.
This patch splits sk_page_frag_refill() into two parts, adding
skb_page_frag_refill() which can be used without a socket.
While we are at it, add a minimum frag size of 32 for
sk_page_frag_refill()
Michael will either use netdev_alloc_frag() from softirq context,
or skb_page_frag_refill() from process context in refill_work()
(GFP_KERNEL allocations)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Michael Dalton <mwdalton@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 1cd32f96055e..ba74474836c0 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2062,6 +2062,8 @@ static inline void skb_frag_set_page(struct sk_buff *skb, int f, __skb_frag_set_page(&skb_shinfo(skb)->frags[f], page); } +bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio); + /** * skb_frag_dma_map - maps a paged fragment via the DMA API * @dev: the device to map the fragment to |