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-rw-r--r--net/core/skbuff.c72
1 files changed, 38 insertions, 34 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index a7f855dca922..ce357d986251 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -659,7 +659,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
}
vaddr = kmap_skb_frag(&skb_shinfo(skb)->frags[i]);
memcpy(page_address(page),
- vaddr + f->page_offset, f->size);
+ vaddr + f->page_offset, skb_frag_size(f));
kunmap_skb_frag(vaddr);
page->private = (unsigned long)head;
head = page;
@@ -1190,14 +1190,14 @@ int ___pskb_trim(struct sk_buff *skb, unsigned int len)
goto drop_pages;
for (; i < nfrags; i++) {
- int end = offset + skb_shinfo(skb)->frags[i].size;
+ int end = offset + skb_frag_size(&skb_shinfo(skb)->frags[i]);
if (end < len) {
offset = end;
continue;
}
- skb_shinfo(skb)->frags[i++].size = len - offset;
+ skb_frag_size_set(&skb_shinfo(skb)->frags[i++], len - offset);
drop_pages:
skb_shinfo(skb)->nr_frags = i;
@@ -1306,9 +1306,11 @@ unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta)
/* Estimate size of pulled pages. */
eat = delta;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- if (skb_shinfo(skb)->frags[i].size >= eat)
+ int size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
+
+ if (size >= eat)
goto pull_pages;
- eat -= skb_shinfo(skb)->frags[i].size;
+ eat -= size;
}
/* If we need update frag list, we are in troubles.
@@ -1371,14 +1373,16 @@ pull_pages:
eat = delta;
k = 0;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
- if (skb_shinfo(skb)->frags[i].size <= eat) {
+ int size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
+
+ if (size <= eat) {
skb_frag_unref(skb, i);
- eat -= skb_shinfo(skb)->frags[i].size;
+ eat -= size;
} else {
skb_shinfo(skb)->frags[k] = skb_shinfo(skb)->frags[i];
if (eat) {
skb_shinfo(skb)->frags[k].page_offset += eat;
- skb_shinfo(skb)->frags[k].size -= eat;
+ skb_frag_size_sub(&skb_shinfo(skb)->frags[k], eat);
eat = 0;
}
k++;
@@ -1433,7 +1437,7 @@ int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len)
WARN_ON(start > offset + len);
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = start + skb_frag_size(&skb_shinfo(skb)->frags[i]);
if ((copy = end - offset) > 0) {
u8 *vaddr;
@@ -1632,7 +1636,7 @@ static int __skb_splice_bits(struct sk_buff *skb, struct pipe_inode_info *pipe,
const skb_frag_t *f = &skb_shinfo(skb)->frags[seg];
if (__splice_segment(skb_frag_page(f),
- f->page_offset, f->size,
+ f->page_offset, skb_frag_size(f),
offset, len, skb, spd, 0, sk, pipe))
return 1;
}
@@ -1742,7 +1746,7 @@ int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len)
WARN_ON(start > offset + len);
- end = start + frag->size;
+ end = start + skb_frag_size(frag);
if ((copy = end - offset) > 0) {
u8 *vaddr;
@@ -1815,7 +1819,7 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
WARN_ON(start > offset + len);
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = start + skb_frag_size(&skb_shinfo(skb)->frags[i]);
if ((copy = end - offset) > 0) {
__wsum csum2;
u8 *vaddr;
@@ -1890,7 +1894,7 @@ __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
WARN_ON(start > offset + len);
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = start + skb_frag_size(&skb_shinfo(skb)->frags[i]);
if ((copy = end - offset) > 0) {
__wsum csum2;
u8 *vaddr;
@@ -2163,7 +2167,7 @@ static inline void skb_split_no_header(struct sk_buff *skb,
skb->data_len = len - pos;
for (i = 0; i < nfrags; i++) {
- int size = skb_shinfo(skb)->frags[i].size;
+ int size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
if (pos + size > len) {
skb_shinfo(skb1)->frags[k] = skb_shinfo(skb)->frags[i];
@@ -2179,8 +2183,8 @@ static inline void skb_split_no_header(struct sk_buff *skb,
*/
skb_frag_ref(skb, i);
skb_shinfo(skb1)->frags[0].page_offset += len - pos;
- skb_shinfo(skb1)->frags[0].size -= len - pos;
- skb_shinfo(skb)->frags[i].size = len - pos;
+ skb_frag_size_sub(&skb_shinfo(skb1)->frags[0], len - pos);
+ skb_frag_size_set(&skb_shinfo(skb)->frags[i], len - pos);
skb_shinfo(skb)->nr_frags++;
}
k++;
@@ -2258,7 +2262,7 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen)
} else {
merge = to - 1;
- todo -= fragfrom->size;
+ todo -= skb_frag_size(fragfrom);
if (todo < 0) {
if (skb_prepare_for_shift(skb) ||
skb_prepare_for_shift(tgt))
@@ -2268,8 +2272,8 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen)
fragfrom = &skb_shinfo(skb)->frags[from];
fragto = &skb_shinfo(tgt)->frags[merge];
- fragto->size += shiftlen;
- fragfrom->size -= shiftlen;
+ skb_frag_size_add(fragto, shiftlen);
+ skb_frag_size_sub(fragfrom, shiftlen);
fragfrom->page_offset += shiftlen;
goto onlymerged;
@@ -2293,9 +2297,9 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen)
fragfrom = &skb_shinfo(skb)->frags[from];
fragto = &skb_shinfo(tgt)->frags[to];
- if (todo >= fragfrom->size) {
+ if (todo >= skb_frag_size(fragfrom)) {
*fragto = *fragfrom;
- todo -= fragfrom->size;
+ todo -= skb_frag_size(fragfrom);
from++;
to++;
@@ -2303,10 +2307,10 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen)
__skb_frag_ref(fragfrom);
fragto->page = fragfrom->page;
fragto->page_offset = fragfrom->page_offset;
- fragto->size = todo;
+ skb_frag_size_set(fragto, todo);
fragfrom->page_offset += todo;
- fragfrom->size -= todo;
+ skb_frag_size_sub(fragfrom, todo);
todo = 0;
to++;
@@ -2321,7 +2325,7 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen)
fragfrom = &skb_shinfo(skb)->frags[0];
fragto = &skb_shinfo(tgt)->frags[merge];
- fragto->size += fragfrom->size;
+ skb_frag_size_add(fragto, skb_frag_size(fragfrom));
__skb_frag_unref(fragfrom);
}
@@ -2419,7 +2423,7 @@ next_skb:
while (st->frag_idx < skb_shinfo(st->cur_skb)->nr_frags) {
frag = &skb_shinfo(st->cur_skb)->frags[st->frag_idx];
- block_limit = frag->size + st->stepped_offset;
+ block_limit = skb_frag_size(frag) + st->stepped_offset;
if (abs_offset < block_limit) {
if (!st->frag_data)
@@ -2437,7 +2441,7 @@ next_skb:
}
st->frag_idx++;
- st->stepped_offset += frag->size;
+ st->stepped_offset += skb_frag_size(frag);
}
if (st->frag_data) {
@@ -2567,13 +2571,13 @@ int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
left = PAGE_SIZE - frag->page_offset;
copy = (length > left)? left : length;
- ret = getfrag(from, skb_frag_address(frag) + frag->size,
+ ret = getfrag(from, skb_frag_address(frag) + skb_frag_size(frag),
offset, copy, 0, skb);
if (ret < 0)
return -EFAULT;
/* copy was successful so update the size parameters */
- frag->size += copy;
+ skb_frag_size_add(frag, copy);
skb->len += copy;
skb->data_len += copy;
offset += copy;
@@ -2720,11 +2724,11 @@ struct sk_buff *skb_segment(struct sk_buff *skb, u32 features)
while (pos < offset + len && i < nfrags) {
*frag = skb_shinfo(skb)->frags[i];
__skb_frag_ref(frag);
- size = frag->size;
+ size = skb_frag_size(frag);
if (pos < offset) {
frag->page_offset += offset - pos;
- frag->size -= offset - pos;
+ skb_frag_size_sub(frag, offset - pos);
}
skb_shinfo(nskb)->nr_frags++;
@@ -2733,7 +2737,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, u32 features)
i++;
pos += size;
} else {
- frag->size -= pos + size - (offset + len);
+ skb_frag_size_sub(frag, pos + size - (offset + len));
goto skip_fraglist;
}
@@ -2813,7 +2817,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
} while (--i);
frag->page_offset += offset;
- frag->size -= offset;
+ skb_frag_size_sub(frag, offset);
skb->truesize -= skb->data_len;
skb->len -= skb->data_len;
@@ -2865,7 +2869,7 @@ merge:
unsigned int eat = offset - headlen;
skbinfo->frags[0].page_offset += eat;
- skbinfo->frags[0].size -= eat;
+ skb_frag_size_sub(&skbinfo->frags[0], eat);
skb->data_len -= eat;
skb->len -= eat;
offset = headlen;
@@ -2936,7 +2940,7 @@ __skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
WARN_ON(start > offset + len);
- end = start + skb_shinfo(skb)->frags[i].size;
+ end = start + skb_frag_size(&skb_shinfo(skb)->frags[i]);
if ((copy = end - offset) > 0) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
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