提交 ce3dd395 编写于 作者: J Jarek Poplawski 提交者: David S. Miller

net: Fix page seeking for skb_splice_bits().

struct page walking should be done with proper accessor functions, not
directly.

With doubts from David S. Miller and Herbert Xu.
Signed-off-by: NJarek Poplawski <jarkao2@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 51621fbd
......@@ -1412,8 +1412,13 @@ static inline int spd_fill_page(struct splice_pipe_desc *spd, struct page *page,
static inline void __segment_seek(struct page **page, unsigned int *poff,
unsigned int *plen, unsigned int off)
{
unsigned long n;
*poff += off;
*page += *poff / PAGE_SIZE;
n = *poff / PAGE_SIZE;
if (n)
*page = nth_page(*page, n);
*poff = *poff % PAGE_SIZE;
*plen -= off;
}
......
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