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lustre: don't open-code kernel_recvmsg() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-02-09 12:07:46 -05:00
parent 920220c111
commit b2f42cfeeb
2 changed files with 9 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib-linux.c
View File

@ -215,15 +215,8 @@ ksocknal_lib_recv_iov (ksock_conn_t *conn)
#endif
struct iovec *iov = conn->ksnc_rx_iov;
struct msghdr msg = {
.msg_name = NULL,
.msg_namelen = 0,
.msg_iov = scratchiov,
.msg_iovlen = niov,
.msg_control = NULL,
.msg_controllen = 0,
.msg_flags = 0
};
mm_segment_t oldmm = get_fs();
int nob;
int i;
int rc;
@ -241,10 +234,8 @@ ksocknal_lib_recv_iov (ksock_conn_t *conn)
}
LASSERT (nob <= conn->ksnc_rx_nob_wanted);
set_fs (KERNEL_DS);
rc = sock_recvmsg (conn->ksnc_sock, &msg, nob, MSG_DONTWAIT);
/* NB this is just a boolean..........................^ */
set_fs (oldmm);
rc = kernel_recvmsg(conn->ksnc_sock, &msg,
(struct kvec *)scratchiov, niov, nob, MSG_DONTWAIT);
saved_csum = 0;
if (conn->ksnc_proto == &ksocknal_protocol_v2x) {
@ -333,14 +324,8 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
#endif
lnet_kiov_t *kiov = conn->ksnc_rx_kiov;
struct msghdr msg = {
.msg_name = NULL,
.msg_namelen = 0,
.msg_iov = scratchiov,
.msg_control = NULL,
.msg_controllen = 0,
.msg_flags = 0
};
mm_segment_t oldmm = get_fs();
int nob;
int i;
int rc;
@ -348,12 +333,13 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
void *addr;
int sum;
int fragnob;
int n;
/* NB we can't trust socket ops to either consume our iovs
* or leave them alone. */
if ((addr = ksocknal_lib_kiov_vmap(kiov, niov, scratchiov, pages)) != NULL) {
nob = scratchiov[0].iov_len;
msg.msg_iovlen = 1;
n = 1;
} else {
for (nob = i = 0; i < niov; i++) {
@ -361,15 +347,13 @@ ksocknal_lib_recv_kiov (ksock_conn_t *conn)
scratchiov[i].iov_base = kmap(kiov[i].kiov_page) +
kiov[i].kiov_offset;
}
msg.msg_iovlen = niov;
n = niov;
}
LASSERT (nob <= conn->ksnc_rx_nob_wanted);
set_fs (KERNEL_DS);
rc = sock_recvmsg (conn->ksnc_sock, &msg, nob, MSG_DONTWAIT);
/* NB this is just a boolean.......................^ */
set_fs (oldmm);
rc = kernel_recvmsg(conn->ksnc_sock, &msg,
(struct kvec *)scratchiov, n, nob, MSG_DONTWAIT);
if (conn->ksnc_msg.ksm_csum != 0) {
for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {

12
drivers/staging/lustre/lustre/libcfs/linux/linux-tcpip.c
View File

@ -330,17 +330,11 @@ libcfs_sock_read (struct socket *sock, void *buffer, int nob, int timeout)
LASSERT (ticks > 0);
for (;;) {
struct iovec iov = {
struct kvec iov = {
.iov_base = buffer,
.iov_len = nob
};
struct msghdr msg = {
.msg_name = NULL,
.msg_namelen = 0,
.msg_iov = &iov,
.msg_iovlen = 1,
.msg_control = NULL,
.msg_controllen = 0,
.msg_flags = 0
};
@ -359,11 +353,9 @@ libcfs_sock_read (struct socket *sock, void *buffer, int nob, int timeout)
return rc;
}
set_fs(KERNEL_DS);
then = jiffies;
rc = sock_recvmsg(sock, &msg, iov.iov_len, 0);
rc = kernel_recvmsg(sock, &msg, &iov, 1, nob, 0);
ticks -= jiffies - then;
set_fs(oldmm);
if (rc < 0)
return rc;