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authorSowmini Varadhan <sowmini.varadhan@oracle.com>2018-01-18 22:11:07 +0100
committerDavid S. Miller <davem@davemloft.net>2018-01-22 21:43:54 +0100
commitb589513e6354a5fd6934823b7fd66bffad41137a (patch)
tree0d9e892d669ca556ac5ce566d949aa16ae6f0d9a /net/rds/tcp.h
parentusbnet: silence an unnecessary warning (diff)
downloadlinux-b589513e6354a5fd6934823b7fd66bffad41137a.tar.xz
linux-b589513e6354a5fd6934823b7fd66bffad41137a.zip
rds: tcp: compute m_ack_seq as offset from ->write_seq
rds-tcp uses m_ack_seq to track the tcp ack# that indicates that the peer has received a rds_message. The m_ack_seq is used in rds_tcp_is_acked() to figure out when it is safe to drop the rds_message from the RDS retransmit queue. The m_ack_seq must be calculated as an offset from the right edge of the in-flight tcp buffer, i.e., it should be based on the ->write_seq, not the ->snd_nxt. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/tcp.h')
-rw-r--r--net/rds/tcp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/rds/tcp.h b/net/rds/tcp.h
index 1aafbf7c3011..864ca7d8f019 100644
--- a/net/rds/tcp.h
+++ b/net/rds/tcp.h
@@ -54,7 +54,7 @@ void rds_tcp_set_callbacks(struct socket *sock, struct rds_conn_path *cp);
void rds_tcp_reset_callbacks(struct socket *sock, struct rds_conn_path *cp);
void rds_tcp_restore_callbacks(struct socket *sock,
struct rds_tcp_connection *tc);
-u32 rds_tcp_snd_nxt(struct rds_tcp_connection *tc);
+u32 rds_tcp_write_seq(struct rds_tcp_connection *tc);
u32 rds_tcp_snd_una(struct rds_tcp_connection *tc);
u64 rds_tcp_map_seq(struct rds_tcp_connection *tc, u32 seq);
extern struct rds_transport rds_tcp_transport;