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SG: Change sg_set_page() to take length and offset argument

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Most drivers need to set length and offset as well, so may as well fold
those three lines into one.

Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2007-10-24 11:20:47 +02:00
parent bd6dee6f30
commit 642f149031
31 changed files with 99 additions and 162 deletions
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9
net/core/skbuff.c
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@ -2045,9 +2045,7 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
if (copy > 0) {
if (copy > len)
copy = len;
sg_set_page(&sg[elt], virt_to_page(skb->data + offset));
sg[elt].offset = (unsigned long)(skb->data + offset) % PAGE_SIZE;
sg[elt].length = copy;
sg_set_buf(sg, skb->data + offset, copy);
elt++;
if ((len -= copy) == 0)
return elt;
@ -2065,9 +2063,8 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
if (copy > len)
copy = len;
sg_set_page(&sg[elt], frag->page);
sg[elt].offset = frag->page_offset+offset-start;
sg[elt].length = copy;
sg_set_page(&sg[elt], frag->page, copy,
frag->page_offset+offset-start);
elt++;
if (!(len -= copy))
return elt;