Hello.
On 09/30/2015 04:45 PM, Sowmini Varadhan wrote:
For the same reasons as 2f53384424 and 35f9c09fe9, rds_tcp_xmit
may have multiple pages to send, so use the MSG_MORE and
MSG_SENDPAGE_NOTLAST as hints to tcp_sendpage()
Signed-off-by: Sowmini Varadhan <sowmini.varad...@oracle.com>
---
net/rds/tcp_send.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
index 53b17ca..5f3e3fa 100644
--- a/net/rds/tcp_send.c
+++ b/net/rds/tcp_send.c
[...]
@@ -116,12 +117,15 @@ int rds_tcp_xmit(struct rds_connection *conn, struct
rds_message *rm,
goto out;
}
+ more = (rm->data.op_nents > 1 ? (MSG_MORE | MSG_SENDPAGE_NOTLAST) : 0);
No need for either inner or outer parens.
while (sg < rm->data.op_nents) {
+ int flags = (MSG_DONTWAIT | MSG_NOSIGNAL | more);
Parens not needed as well.
[...]
MBR, Sergei
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