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| author | Yunsheng Lin <linyunsheng@huawei.com> | 2023-05-11 04:12:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-05-13 21:47:56 +0300 |
| commit | b51f4113ebb02011f0ca86abc3134b28d2071b6a (patch) | |
| tree | b28f53947c59ba27095dca90407b36ea38dce9aa /include/linux/skbuff.h | |
| parent | 305c041899971ff210ad5f9c50249d179c95ada4 (diff) | |
| download | linux-b51f4113ebb02011f0ca86abc3134b28d2071b6a.tar.xz | |
net: introduce and use skb_frag_fill_page_desc()
Most users use __skb_frag_set_page()/skb_frag_off_set()/
skb_frag_size_set() to fill the page desc for a skb frag.
Introduce skb_frag_fill_page_desc() to do that.
net/bpf/test_run.c does not call skb_frag_off_set() to
set the offset, "copy_from_user(page_address(page), ...)"
and 'shinfo' being part of the 'data' kzalloced in
bpf_test_init() suggest that it is assuming offset to be
initialized as zero, so call skb_frag_fill_page_desc()
with offset being zero for this case.
Also, skb_frag_set_page() is not used anymore, so remove
it.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 738776ab8838..30be21c7d05f 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2411,6 +2411,15 @@ static inline unsigned int skb_pagelen(const struct sk_buff *skb) return skb_headlen(skb) + __skb_pagelen(skb); } +static inline void skb_frag_fill_page_desc(skb_frag_t *frag, + struct page *page, + int off, int size) +{ + frag->bv_page = page; + frag->bv_offset = off; + skb_frag_size_set(frag, size); +} + static inline void __skb_fill_page_desc_noacc(struct skb_shared_info *shinfo, int i, struct page *page, int off, int size) @@ -2422,9 +2431,7 @@ static inline void __skb_fill_page_desc_noacc(struct skb_shared_info *shinfo, * that not all callers have unique ownership of the page but rely * on page_is_pfmemalloc doing the right thing(tm). */ - frag->bv_page = page; - frag->bv_offset = off; - skb_frag_size_set(frag, size); + skb_frag_fill_page_desc(frag, page, off, size); } /** @@ -3496,20 +3503,6 @@ static inline void __skb_frag_set_page(skb_frag_t *frag, struct page *page) frag->bv_page = page; } -/** - * skb_frag_set_page - sets the page contained in a paged fragment of an skb - * @skb: the buffer - * @f: the fragment offset - * @page: the page to set - * - * Sets the @f'th fragment of @skb to contain @page. - */ -static inline void skb_frag_set_page(struct sk_buff *skb, int f, - struct page *page) -{ - __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); /** |