Commit d3f7d56a authored by Shawn Landden's avatar Shawn Landden Committed by David S. Miller

net: update consumers of MSG_MORE to recognize MSG_SENDPAGE_NOTLAST

Commit 35f9c09f (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>
Cc: <stable@vger.kernel.org> # 3.4.x + 3.2.x
Reported-and-tested-by: default avatarShawn Landden <shawnlandden@gmail.com>
Original-patch: Richard Weinberger <richard@nod.at>
Signed-off-by: default avatarShawn Landden <shawn@churchofgit.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 85493e6d
...@@ -114,6 +114,9 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page, ...@@ -114,6 +114,9 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
struct hash_ctx *ctx = ask->private; struct hash_ctx *ctx = ask->private;
int err; int err;
if (flags & MSG_SENDPAGE_NOTLAST)
flags |= MSG_MORE;
lock_sock(sk); lock_sock(sk);
sg_init_table(ctx->sgl.sg, 1); sg_init_table(ctx->sgl.sg, 1);
sg_set_page(ctx->sgl.sg, page, size, offset); sg_set_page(ctx->sgl.sg, page, size, offset);
......
...@@ -378,6 +378,9 @@ static ssize_t skcipher_sendpage(struct socket *sock, struct page *page, ...@@ -378,6 +378,9 @@ static ssize_t skcipher_sendpage(struct socket *sock, struct page *page,
struct skcipher_sg_list *sgl; struct skcipher_sg_list *sgl;
int err = -EINVAL; int err = -EINVAL;
if (flags & MSG_SENDPAGE_NOTLAST)
flags |= MSG_MORE;
lock_sock(sk); lock_sock(sk);
if (!ctx->more && ctx->used) if (!ctx->more && ctx->used)
goto unlock; goto unlock;
......
...@@ -1098,6 +1098,9 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset, ...@@ -1098,6 +1098,9 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
struct udp_sock *up = udp_sk(sk); struct udp_sock *up = udp_sk(sk);
int ret; int ret;
if (flags & MSG_SENDPAGE_NOTLAST)
flags |= MSG_MORE;
if (!up->pending) { if (!up->pending) {
struct msghdr msg = { .msg_flags = flags|MSG_MORE }; struct msghdr msg = { .msg_flags = flags|MSG_MORE };
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment