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-rw-r--r--net/core/gro.c4
-rw-r--r--net/core/skbuff.c9
-rw-r--r--net/ipv4/tcp_output.c1
3 files changed, 13 insertions, 1 deletions
diff --git a/net/core/gro.c b/net/core/gro.c
index ac498c9f82cf5..f5c80c2f69df7 100644
--- a/net/core/gro.c
+++ b/net/core/gro.c
@@ -214,10 +214,12 @@ done:
p->data_len += len;
p->truesize += delta_truesize;
p->len += len;
+ skb_shinfo(p)->flags |= skbinfo->flags & SKBFL_SHARED_FRAG;
if (lp != p) {
lp->data_len += len;
lp->truesize += delta_truesize;
lp->len += len;
+ skb_shinfo(lp)->flags |= skbinfo->flags & SKBFL_SHARED_FRAG;
}
NAPI_GRO_CB(skb)->same_flow = 1;
return 0;
@@ -245,6 +247,8 @@ int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb)
p->truesize += skb->truesize;
p->len += skb->len;
+ skb_shinfo(p)->flags |= skb_shinfo(skb)->flags & SKBFL_SHARED_FRAG;
+
NAPI_GRO_CB(skb)->same_flow = 1;
return 0;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 00d60588fb09e..aa9e914884736 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2214,6 +2214,7 @@ struct sk_buff *__pskb_copy_fclone(struct sk_buff *skb, int headroom,
skb_frag_ref(skb, i);
}
skb_shinfo(n)->nr_frags = i;
+ skb_shinfo(n)->flags |= skb_shinfo(skb)->flags & SKBFL_SHARED_FRAG;
}
if (skb_has_frag_list(skb)) {
@@ -4289,6 +4290,8 @@ onlymerged:
tgt->ip_summed = CHECKSUM_PARTIAL;
skb->ip_summed = CHECKSUM_PARTIAL;
+ skb_shinfo(tgt)->flags |= skb_shinfo(skb)->flags & SKBFL_SHARED_FRAG;
+
skb_len_add(skb, -shiftlen);
skb_len_add(tgt, shiftlen);
@@ -4899,7 +4902,8 @@ normal:
skb_copy_from_linear_data_offset(head_skb, offset,
skb_put(nskb, hsize), hsize);
- skb_shinfo(nskb)->flags |= skb_shinfo(head_skb)->flags &
+ skb_shinfo(nskb)->flags |= (skb_shinfo(head_skb)->flags |
+ skb_shinfo(frag_skb)->flags) &
SKBFL_SHARED_FRAG;
if (skb_zerocopy_clone(nskb, frag_skb, GFP_ATOMIC))
@@ -4916,6 +4920,9 @@ normal:
nfrags = skb_shinfo(list_skb)->nr_frags;
frag = skb_shinfo(list_skb)->frags;
frag_skb = list_skb;
+
+ skb_shinfo(nskb)->flags |= skb_shinfo(frag_skb)->flags & SKBFL_SHARED_FRAG;
+
if (!skb_headlen(list_skb)) {
BUG_ON(!nfrags);
} else {
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 33c2fb60d0562..c76672f544be4 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2391,6 +2391,7 @@ static int tcp_clone_payload(struct sock *sk, struct sk_buff *to,
todo = min_t(int, skb_frag_size(fragfrom),
probe_size - len);
len += todo;
+ skb_shinfo(to)->flags |= skb_shinfo(skb)->flags & SKBFL_SHARED_FRAG;
if (lastfrag &&
skb_frag_page(fragfrom) == skb_frag_page(lastfrag) &&
skb_frag_off(fragfrom) == skb_frag_off(lastfrag) +