From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tom Herbert , Eric Dumazet , "David S. Miller" , Shawn Landden Subject: [PATCH 3.4 14/25] net: update consumers of MSG_MORE to recognize MSG_SENDPAGE_NOTLAST Date: Tue, 10 Dec 2013 00:00:22 -0800 Message-Id: <20131210075931.838036216@linuxfoundation.org> In-Reply-To: <20131210075930.808460227@linuxfoundation.org> References: <20131210075930.808460227@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Shawn Landden 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 Cc: Eric Dumazet Cc: David S. Miller Reported-and-tested-by: Shawn Landden Original-patch: Richard Weinberger Signed-off-by: Shawn Landden Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- crypto/algif_hash.c | 3 +++ crypto/algif_skcipher.c | 3 +++ net/ipv4/udp.c | 3 +++ 3 files changed, 9 insertions(+) --- a/crypto/algif_hash.c +++ b/crypto/algif_hash.c @@ -117,6 +117,9 @@ static ssize_t hash_sendpage(struct sock if (flags & MSG_SENDPAGE_NOTLAST) flags |= MSG_MORE; + 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); --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -381,6 +381,9 @@ static ssize_t skcipher_sendpage(struct if (flags & MSG_SENDPAGE_NOTLAST) flags |= MSG_MORE; + if (flags & MSG_SENDPAGE_NOTLAST) + flags |= MSG_MORE; + lock_sock(sk); if (!ctx->more && ctx->used) goto unlock; --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1042,6 +1042,9 @@ int udp_sendpage(struct sock *sk, struct if (flags & MSG_SENDPAGE_NOTLAST) flags |= MSG_MORE; + if (flags & MSG_SENDPAGE_NOTLAST) + flags |= MSG_MORE; + if (!up->pending) { struct msghdr msg = { .msg_flags = flags|MSG_MORE };