net: update consumers of MSG_MORE to recognize MSG_SENDPAGE_NOTLAST

commit d3f7d56a7a4671d395e8af87071068a195257bf6 upstream.

Commit 35f9c09fe (tcp: tcp_sendpages() should call tcp_push() once)
added an internal flag MSG_SENDPAGE_NOTLAST, similar to
MSG_MORE.

algif_hash, algif_skcipher, and udp used MSG_MORE from tcp_sendpages()
and need to see the new flag as identical to MSG_MORE.

This fixes sendfile() on AF_ALG.

v3: also fix udp

Cc: Tom Herbert <therbert@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Reported-and-tested-by: Shawn Landden <shawnlandden@gmail.com>
Original-patch: Richard Weinberger <richard@nod.at>
Signed-off-by: Shawn Landden <shawn@churchofgit.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 850246206b1258a697f83e86c39acc9b0a17f973..585c3b279feb406d7562d64eb4d09ee43328f1eb 100644 (file)
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -114,6 +114,9 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
        struct hash_ctx *ctx = ask->private;
        int err;
 
+       if (flags & MSG_SENDPAGE_NOTLAST)
+               flags |= MSG_MORE;
+
        if (flags & MSG_SENDPAGE_NOTLAST)
                flags |= MSG_MORE;
 

diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index a19c027b29bde504ac8eae4b4572947a69ed2335..918a3b4148b8bd140ee535eeb2b74d88efc65c55 100644 (file)
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -378,6 +378,9 @@ static ssize_t skcipher_sendpage(struct socket *sock, struct page *page,
        struct skcipher_sg_list *sgl;
        int err = -EINVAL;
 
+       if (flags & MSG_SENDPAGE_NOTLAST)
+               flags |= MSG_MORE;
+
        if (flags & MSG_SENDPAGE_NOTLAST)
                flags |= MSG_MORE;
 

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index c3075b552248b5853f642aed19f0a89d199cb7b0..233f1911dc34ab362e57167b9d0867ebfa9fc464 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1070,6 +1070,9 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
        struct udp_sock *up = udp_sk(sk);
        int ret;
 
+       if (flags & MSG_SENDPAGE_NOTLAST)
+               flags |= MSG_MORE;
+
        if (flags & MSG_SENDPAGE_NOTLAST)
                flags |= MSG_MORE;