diff options
| author | David S. Miller <davem@davemloft.net> | 2013-05-24 16:48:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-05-24 16:48:28 -0700 |
| commit | e6ff4c75f9095f61b3a66c2a78e47b62864022dd (patch) | |
| tree | 425ea9463cbec0b1975b8a33d9a56817143055d0 /net/ipv4/tcp.c | |
| parent | ee9c799c231324de681eb21e06d8bf4842768b75 (diff) | |
| parent | 0e255f1c0c9add2f0c920240ac4cadc28ae274c3 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge net into net-next because some upcoming net-next changes
build on top of bug fixes that went into net.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 53d9c120fbb..d87ce72ca8a 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2887,6 +2887,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, unsigned int mss; struct sk_buff *gso_skb = skb; __sum16 newcheck; + bool ooo_okay, copy_destructor; if (!pskb_may_pull(skb, sizeof(*th))) goto out; @@ -2927,10 +2928,18 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, goto out; } + copy_destructor = gso_skb->destructor == tcp_wfree; + ooo_okay = gso_skb->ooo_okay; + /* All segments but the first should have ooo_okay cleared */ + skb->ooo_okay = 0; + segs = skb_segment(skb, features); if (IS_ERR(segs)) goto out; + /* Only first segment might have ooo_okay set */ + segs->ooo_okay = ooo_okay; + delta = htonl(oldlen + (thlen + mss)); skb = segs; @@ -2950,6 +2959,17 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, thlen, skb->csum)); seq += mss; + if (copy_destructor) { + skb->destructor = gso_skb->destructor; + skb->sk = gso_skb->sk; + /* {tcp|sock}_wfree() use exact truesize accounting : + * sum(skb->truesize) MUST be exactly be gso_skb->truesize + * So we account mss bytes of 'true size' for each segment. + * The last segment will contain the remaining. + */ + skb->truesize = mss; + gso_skb->truesize -= mss; + } skb = skb->next; th = tcp_hdr(skb); @@ -2962,7 +2982,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, * is freed at TX completion, and not right now when gso_skb * is freed by GSO engine */ - if (gso_skb->destructor == tcp_wfree) { + if (copy_destructor) { swap(gso_skb->sk, skb->sk); swap(gso_skb->destructor, skb->destructor); swap(gso_skb->truesize, skb->truesize); @@ -3213,8 +3233,11 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp, for (i = 0; i < shi->nr_frags; ++i) { const struct skb_frag_struct *f = &shi->frags[i]; - struct page *page = skb_frag_page(f); - sg_set_page(&sg, page, skb_frag_size(f), f->page_offset); + unsigned int offset = f->page_offset; + struct page *page = skb_frag_page(f) + (offset >> PAGE_SHIFT); + + sg_set_page(&sg, page, skb_frag_size(f), + offset_in_page(offset)); if (crypto_hash_update(desc, &sg, skb_frag_size(f))) return 1; } |