linux-next: manual merge of the tip tree with the net-next tree

Stephen Rothwell
2014-05-05T04:29:48Z

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Hi all,

Today's linux-next merge of the tip tree got a conflict in
net/ipv4/tcp_output.c between commit e114a710aa50 ("tcp: fix cwnd limited
checking to improve congestion control") from the tree and commit
4e857c58efeb ("arch: Mass conversion of smp_mb__*()") from the tip tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au

diff --cc net/ipv4/tcp_output.c
index 694711a140d4,366cf06587b8..000000000000
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@@ -1946,18 -1930,10 +1946,16 @@@ static bool tcp_write_xmit(struct sock
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED, so we must
* test again the condition.
- * We abuse smp_mb__after_clear_bit() because
- * there is no smp_mb__after_set_bit() yet
*/
- smp_mb__after_clear_bit();
+ smp_mb__after_atomic();
- if (atomic_read(&sk->sk_wmem_alloc) > limit)
+ if (atomic_read(&sk->sk_wmem_alloc) > limit) {
+ u32 unsent_bytes;
+
+compute_unsent_segs:
+ unsent_bytes = tp->write_seq - tp->snd_nxt;
+ unsent_segs = DIV_ROUND_UP(unsent_bytes, mss_now);
break;
+ }
}

limit = mss_now;

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