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Merge branch 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull kern_recvmsg reduction from Al Viro:
 "kernel_recvmsg() is a set_fs()-using wrapper for sock_recvmsg(). In
  all but one case that is not needed - use of ITER_KVEC for ->msg_iter
  takes care of the data and does not care about set_fs(). The only
  exception is svc_udp_recvfrom() where we want cmsg to be store into
  kernel object; everything else can just use sock_recvmsg() and be done
  with that.

  A followup converting svc_udp_recvfrom() away from set_fs() (and
  killing kernel_recvmsg() off) is *NOT* in here - I'd like to hear what
  netdev folks think of the approach proposed in that followup)"

* 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  tipc: switch to sock_recvmsg()
  smc: switch to sock_recvmsg()
  ipvs: switch to sock_recvmsg()
  mISDN: switch to sock_recvmsg()
  drbd: switch to sock_recvmsg()
  lustre lnet_sock_read(): switch to sock_recvmsg()
  cfs2: switch to sock_recvmsg()
  ncpfs: switch to sock_recvmsg()
  dlm: switch to sock_recvmsg()
  svc_recvfrom(): switch to sock_recvmsg()
This commit is contained in:
Linus Torvalds
2018-01-30 18:59:03 -08:00
parent 8b0fdf631c bc4802736d
commit 1ed2d76e02
11 changed files with 46 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/isdn/mISDN/l1oip_core.c
View File

@@ -645,8 +645,10 @@ l1oip_socket_thread(void *data)
{
struct l1oip *hc = (struct l1oip *)data;
int ret = 0;
struct msghdr msg;
struct sockaddr_in sin_rx;
struct kvec iov;
struct msghdr msg = {.msg_name = &sin_rx,
.msg_namelen = sizeof(sin_rx)};
unsigned char *recvbuf;
size_t recvbuf_size = 1500;
int recvlen;
@@ -661,6 +663,9 @@ l1oip_socket_thread(void *data)
goto fail;
}
iov.iov_base = recvbuf;
iov.iov_len = recvbuf_size;
/* make daemon */
allow_signal(SIGTERM);
@@ -697,12 +702,6 @@ l1oip_socket_thread(void *data)
goto fail;
}
/* build receive message */
msg.msg_name = &sin_rx;
msg.msg_namelen = sizeof(sin_rx);
msg.msg_control = NULL;
msg.msg_controllen = 0;
/* build send message */
hc->sendmsg.msg_name = &hc->sin_remote;
hc->sendmsg.msg_namelen = sizeof(hc->sin_remote);
@@ -719,12 +718,9 @@ l1oip_socket_thread(void *data)
printk(KERN_DEBUG "%s: socket created and open\n",
__func__);
while (!signal_pending(current)) {
struct kvec iov = {
.iov_base = recvbuf,
.iov_len = recvbuf_size,
};
recvlen = kernel_recvmsg(socket, &msg, &iov, 1,
recvbuf_size, 0);
iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1,
recvbuf_size);
recvlen = sock_recvmsg(socket, &msg, 0);
if (recvlen > 0) {
l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
} else {