[PATCH] dlm: use kern_recvmsg()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/dlm/lowcomms-tcp.c b/fs/dlm/lowcomms-tcp.c
index f1efd17..07e0a12 100644
--- a/fs/dlm/lowcomms-tcp.c
+++ b/fs/dlm/lowcomms-tcp.c
@@ -268,12 +268,12 @@
static int receive_from_sock(struct connection *con)
{
int ret = 0;
- struct msghdr msg;
- struct iovec iov[2];
- mm_segment_t fs;
+ struct msghdr msg = {};
+ struct kvec iov[2];
unsigned len;
int r;
int call_again_soon = 0;
+ int nvec;
mutex_lock(&con->sock_mutex);
@@ -293,21 +293,13 @@
cbuf_init(&con->cb, PAGE_CACHE_SIZE);
}
- msg.msg_control = NULL;
- msg.msg_controllen = 0;
- msg.msg_iovlen = 1;
- msg.msg_iov = iov;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_flags = 0;
-
/*
* iov[0] is the bit of the circular buffer between the current end
* point (cb.base + cb.len) and the end of the buffer.
*/
iov[0].iov_len = con->cb.base - cbuf_data(&con->cb);
iov[0].iov_base = page_address(con->rx_page) + cbuf_data(&con->cb);
- iov[1].iov_len = 0;
+ nvec = 1;
/*
* iov[1] is the bit of the circular buffer between the start of the
@@ -317,15 +309,12 @@
iov[0].iov_len = PAGE_CACHE_SIZE - cbuf_data(&con->cb);
iov[1].iov_len = con->cb.base;
iov[1].iov_base = page_address(con->rx_page);
- msg.msg_iovlen = 2;
+ nvec = 2;
}
len = iov[0].iov_len + iov[1].iov_len;
- fs = get_fs();
- set_fs(get_ds());
- r = ret = sock_recvmsg(con->sock, &msg, len,
+ r = ret = kernel_recvmsg(con->sock, &msg, iov, nvec, len,
MSG_DONTWAIT | MSG_NOSIGNAL);
- set_fs(fs);
if (ret <= 0)
goto out_close;