xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tcp: tcp_make_synack() consumes dst parameter

Browse Source 
tcp_make_synack() clones the dst, and callers release it.

We can avoid two atomic operations per SYNACK if tcp_make_synack()
consumes dst instead of cloning it.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2012-06-03 20:33:21 +00:00
committed by David S. Miller
parent 90ba9b1986
commit 4aea39c11c
3 changed files with 14 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
net/ipv4/tcp_ipv4.c
View File

@@ -848,7 +848,6 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst,
err = net_xmit_eval(err);
}
dst_release(dst);
return err;
}