The patch titled
knfsd: SUNRPC: Don't set msg_name and msg_namelen when calling sock_recvmsg
has been added to the -mm tree. Its filename is
knfsd-sunrpc-dont-set-msg_name-and-msg_namelen-when-calling-sock_recvmsg.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: knfsd: SUNRPC: Don't set msg_name and msg_namelen when calling sock_recvmsg
From: Chuck Lever <chuck.lever@xxxxxxxxxx>
Clean-up: msg_name and msg_namelen are not used by sock_recvmsg, so don't
bother to set them in svc_recvfrom.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
net/sunrpc/svcsock.c | 23 ++++++++---------------
1 files changed, 8 insertions(+), 15 deletions(-)
diff -puN net/sunrpc/svcsock.c~knfsd-sunrpc-dont-set-msg_name-and-msg_namelen-when-calling-sock_recvmsg net/sunrpc/svcsock.c
--- a/net/sunrpc/svcsock.c~knfsd-sunrpc-dont-set-msg_name-and-msg_namelen-when-calling-sock_recvmsg
+++ a/net/sunrpc/svcsock.c
@@ -560,21 +560,14 @@ svc_recv_available(struct svc_sock *svsk
static int
svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr, int buflen)
{
- struct msghdr msg;
- struct socket *sock;
- int len, alen;
-
- rqstp->rq_addrlen = sizeof(rqstp->rq_addr);
- sock = rqstp->rq_sock->sk_sock;
-
- msg.msg_name = &rqstp->rq_addr;
- msg.msg_namelen = sizeof(rqstp->rq_addr);
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
-
- msg.msg_flags = MSG_DONTWAIT;
+ struct svc_sock *svsk = rqstp->rq_sock;
+ struct msghdr msg = {
+ .msg_flags = MSG_DONTWAIT,
+ };
+ int len;
- len = kernel_recvmsg(sock, &msg, iov, nr, buflen, MSG_DONTWAIT);
+ len = kernel_recvmsg(svsk->sk_sock, &msg, iov, nr, buflen,
+ msg.msg_flags);
/* sock_recvmsg doesn't fill in the name/namelen, so we must..
*/
@@ -582,7 +575,7 @@ svc_recvfrom(struct svc_rqst *rqstp, str
rqstp->rq_addrlen = svsk->sk_remotelen;
dprintk("svc: socket %p recvfrom(%p, %Zu) = %d\n",
- rqstp->rq_sock, iov[0].iov_base, iov[0].iov_len, len);
+ svsk, iov[0].iov_base, iov[0].iov_len, len);
return len;
}
_
Patches currently in -mm which might be from chuck.lever@xxxxxxxxxx are
origin.patch
knfsd-sunrpc-update-internal-api-separate-pmap-register-and-temp-sockets.patch
knfsd-sunrpc-allow-creating-an-rpc-service-without-registering-with-portmapper.patch
knfsd-sunrpc-cache-remote-peers-address-in-svc_sock.patch
knfsd-sunrpc-dont-set-msg_name-and-msg_namelen-when-calling-sock_recvmsg.patch
knfsd-sunrpc-use-sockaddr_storage-to-store-address-in-svc_deferred_req.patch
knfsd-sunrpc-add-a-function-to-format-the-address-in-an-svc_rqst-for-printing.patch
knfsd-sunrpc-provide-room-in-svc_rqst-for-larger-addresses.patch
knfsd-sunrpc-make-rq_daddr-field-address-version-independent.patch
knfsd-sunrpc-teach-svc_sendto-to-deal-with-ipv6-addresses.patch
knfsd-sunrpc-add-a-generic-function-to-see-if-the-peer-uses-a-secure-port.patch
knfsd-sunrpc-support-ipv6-addresses-in-svc_tcp_accept.patch
knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path.patch
knfsd-sunrpc-fix-up-svc_create_socket-to-take-a-sockaddr-struct-length.patch
-
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