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authorShawn Landden <shawn@churchofgit.com>2013-11-24 22:36:28 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-08 07:29:26 -0800
commit86a243440a102e315438c6faf57881796533528d (patch)
tree3130b68be4e9adceda89f0cc6a550a2df070c5fa
parentac3e7d9bc445b256fc386a30df55dfd1b3fda0be (diff)
net: update consumers of MSG_MORE to recognize MSG_SENDPAGE_NOTLAST
[ Upstream commit d3f7d56a7a4671d395e8af87071068a195257bf6 ] 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 Reported-and-tested-by: Shawn Landden <shawnlandden@gmail.com> Cc: Tom Herbert <therbert@google.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> 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>
-rw-r--r--crypto/algif_hash.c3
-rw-r--r--crypto/algif_skcipher.c3
-rw-r--r--net/ipv4/udp.c3
3 files changed, 9 insertions, 0 deletions
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index ef5356cd280..850246206b1 100644
--- 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;
+
lock_sock(sk);
sg_init_table(ctx->sgl.sg, 1);
sg_set_page(ctx->sgl.sg, page, size, offset);
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 6a6dfc062d2..a19c027b29b 100644
--- 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;
+
lock_sock(sk);
if (!ctx->more && ctx->used)
goto unlock;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 2e65ac850ca..3f1db34df5a 100644
--- 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 (!up->pending) {
struct msghdr msg = { .msg_flags = flags|MSG_MORE };