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lustre: switch lnet_sock_write() to sock_sendmsg()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Al Viro 2016-07-23 02:36:58 -04:00 • committed by Greg Kroah-Hartman
commit fd25dc3460
1 changed files with 7 additions and 14 deletions
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21
drivers/staging/lustre/lnet/lnet/lib-socket.c
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@ -265,21 +265,17 @@ lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout)
long jiffies_left = timeout * msecs_to_jiffies(MSEC_PER_SEC);
unsigned long then;
struct timeval tv;
struct kvec iov = { .iov_base = buffer, .iov_len = nob };
struct msghdr msg = {NULL,};
LASSERT(nob > 0);
/*
* Caller may pass a zero timeout if she thinks the socket buffer is
* empty enough to take the whole message immediately
*/
iov_iter_kvec(&msg.msg_iter, WRITE | ITER_KVEC, &iov, 1, nob);
for (;;) {
struct kvec iov = {
.iov_base = buffer,
.iov_len = nob
};
struct msghdr msg = {
.msg_flags = !timeout ? MSG_DONTWAIT : 0
};
msg.msg_flags = !timeout ? MSG_DONTWAIT : 0;
if (timeout) {
/* Set send timeout to remaining time */
jiffies_to_timeval(jiffies_left, &tv);
@ -296,9 +292,6 @@ lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout)
rc = kernel_sendmsg(sock, &msg, &iov, 1, nob);
jiffies_left -= jiffies - then;
if (rc == nob)
return 0;
if (rc < 0)
return rc;
@ -307,11 +300,11 @@ lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout)
return -ECONNABORTED;
}
if (!msg_data_left(&msg))
break;
if (jiffies_left <= 0)
return -EAGAIN;
buffer = ((char *)buffer) + rc;
nob -= rc;
}
return 0;
}