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SUNRPC: Use MSG_SENDPAGE_NOTLAST in xs_send_pagedata() 

If we're sending more than one page via kernel_sendpage(), then set
MSG_SENDPAGE_NOTLAST between the pages so that we don't send suboptimal
frames (see commit 2f53384424 and commit 35f9c09fe9).

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-10-06 15:59:20 -04:00
parent a26480942c
commit 31303d6cbb
1 changed files with 3 additions and 1 deletions
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4
net/sunrpc/xprtsock.c
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@ -360,8 +360,10 @@ static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned i
int flags = XS_SENDMSG_FLAGS;
remainder -= len;
if (remainder != 0 || more)
if (more)
flags |= MSG_MORE;
if (remainder != 0)
flags |= MSG_SENDPAGE_NOTLAST | MSG_MORE;
err = do_sendpage(sock, *ppage, base, len, flags);
if (remainder == 0 || err != len)
break;