diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2016-08-20 17:34:23 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-21 16:03:38 +0200 |
commit | c1b7b8eb86583eae68814c4993c916fc61b5e03b (patch) | |
tree | 00a4e25377a4c043505e62d5f45a6f954c243e02 | |
parent | 03766dca629d03c631417ecdbe1c760f3ec92878 (diff) |
lustre: pass iov_iter to ->lnd_recv()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/staging/lustre/include/linux/lnet/lib-types.h | 5 | ||||
-rw-r--r-- | drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h | 3 | ||||
-rw-r--r-- | drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c | 32 | ||||
-rw-r--r-- | drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h | 4 | ||||
-rw-r--r-- | drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c | 21 | ||||
-rw-r--r-- | drivers/staging/lustre/lnet/lnet/lib-move.c | 11 | ||||
-rw-r--r-- | drivers/staging/lustre/lnet/lnet/lo.c | 24 |
7 files changed, 49 insertions, 51 deletions
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h index 7967b013cbae..640ff7275311 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-types.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-types.h @@ -220,10 +220,7 @@ typedef struct lnet_lnd { * credit if the LND does flow control. */ int (*lnd_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg, - int delayed, unsigned int niov, - struct kvec *iov, lnet_kiov_t *kiov, - unsigned int offset, unsigned int mlen, - unsigned int rlen); + int delayed, struct iov_iter *to, unsigned int rlen); /* * lnet_parse() has had to delay processing of this message diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index fbc4f685ded5..3cf8942f4c38 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -1036,5 +1036,4 @@ int kiblnd_post_rx(struct kib_rx *rx, int credit); int kiblnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg); int kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, - unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov, - unsigned int offset, unsigned int mlen, unsigned int rlen); + struct iov_iter *to, unsigned int rlen); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 430ff85465da..ae55418f809f 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -650,7 +650,7 @@ static int kiblnd_map_tx(lnet_ni_t *ni, struct kib_tx *tx, struct kib_rdma_desc static int kiblnd_setup_rd_iov(lnet_ni_t *ni, struct kib_tx *tx, struct kib_rdma_desc *rd, - unsigned int niov, struct kvec *iov, int offset, int nob) + unsigned int niov, const struct kvec *iov, int offset, int nob) { struct kib_net *net = ni->ni_data; struct page *page; @@ -707,7 +707,7 @@ kiblnd_setup_rd_iov(lnet_ni_t *ni, struct kib_tx *tx, struct kib_rdma_desc *rd, static int kiblnd_setup_rd_kiov(lnet_ni_t *ni, struct kib_tx *tx, struct kib_rdma_desc *rd, - int nkiov, lnet_kiov_t *kiov, int offset, int nob) + int nkiov, const lnet_kiov_t *kiov, int offset, int nob) { struct kib_net *net = ni->ni_data; struct scatterlist *sg; @@ -1711,8 +1711,7 @@ kiblnd_reply(lnet_ni_t *ni, struct kib_rx *rx, lnet_msg_t *lntmsg) int kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, - unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov, - unsigned int offset, unsigned int mlen, unsigned int rlen) + struct iov_iter *to, unsigned int rlen) { struct kib_rx *rx = private; struct kib_msg *rxmsg = rx->rx_msg; @@ -1722,10 +1721,9 @@ kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, int post_credit = IBLND_POSTRX_PEER_CREDIT; int rc = 0; - LASSERT(mlen <= rlen); + LASSERT(iov_iter_count(to) <= rlen); LASSERT(!in_interrupt()); /* Either all pages or all vaddrs */ - LASSERT(!(kiov && iov)); switch (rxmsg->ibm_type) { default: @@ -1741,16 +1739,16 @@ kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, break; } - if (kiov) - lnet_copy_flat2kiov(niov, kiov, offset, + if (to->type & ITER_BVEC) + lnet_copy_flat2kiov(to->nr_segs, to->bvec, to->iov_offset, IBLND_MSG_SIZE, rxmsg, offsetof(struct kib_msg, ibm_u.immediate.ibim_payload), - mlen); + iov_iter_count(to)); else - lnet_copy_flat2iov(niov, iov, offset, + lnet_copy_flat2iov(to->nr_segs, to->kvec, to->iov_offset, IBLND_MSG_SIZE, rxmsg, offsetof(struct kib_msg, ibm_u.immediate.ibim_payload), - mlen); + iov_iter_count(to)); lnet_finalize(ni, lntmsg, 0); break; @@ -1758,7 +1756,7 @@ kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, struct kib_msg *txmsg; struct kib_rdma_desc *rd; - if (!mlen) { + if (!iov_iter_count(to)) { lnet_finalize(ni, lntmsg, 0); kiblnd_send_completion(rx->rx_conn, IBLND_MSG_PUT_NAK, 0, rxmsg->ibm_u.putreq.ibprm_cookie); @@ -1776,12 +1774,16 @@ kiblnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, txmsg = tx->tx_msg; rd = &txmsg->ibm_u.putack.ibpam_rd; - if (!kiov) + if (!(to->type & ITER_BVEC)) rc = kiblnd_setup_rd_iov(ni, tx, rd, - niov, iov, offset, mlen); + to->nr_segs, to->kvec, + to->iov_offset, + iov_iter_count(to)); else rc = kiblnd_setup_rd_kiov(ni, tx, rd, - niov, kiov, offset, mlen); + to->nr_segs, to->bvec, + to->iov_offset, + iov_iter_count(to)); if (rc) { CERROR("Can't setup PUT sink for %s: %d\n", libcfs_nid2str(conn->ibc_peer->ibp_nid), rc); diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h index 84a915c97e7a..068440e1a901 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h @@ -614,9 +614,7 @@ void ksocknal_shutdown(lnet_ni_t *ni); int ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg); int ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg); int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, - int delayed, unsigned int niov, - struct kvec *iov, lnet_kiov_t *kiov, - unsigned int offset, unsigned int mlen, unsigned int rlen); + int delayed, struct iov_iter *to, unsigned int rlen); int ksocknal_accept(lnet_ni_t *ni, struct socket *sock); int ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip, int port); diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index f8573ed03f1c..1bdf96206970 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -1325,39 +1325,36 @@ ksocknal_process_receive(struct ksock_conn *conn) int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed, - unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov, - unsigned int offset, unsigned int mlen, unsigned int rlen) + struct iov_iter *to, unsigned int rlen) { struct ksock_conn *conn = private; struct ksock_sched *sched = conn->ksnc_scheduler; - LASSERT(mlen <= rlen); - LASSERT(niov <= LNET_MAX_IOV); + LASSERT(iov_iter_count(to) <= rlen); + LASSERT(to->nr_segs <= LNET_MAX_IOV); conn->ksnc_cookie = msg; - conn->ksnc_rx_nob_wanted = mlen; + conn->ksnc_rx_nob_wanted = iov_iter_count(to); conn->ksnc_rx_nob_left = rlen; - if (!mlen || iov) { + if (to->type & ITER_KVEC) { conn->ksnc_rx_nkiov = 0; conn->ksnc_rx_kiov = NULL; conn->ksnc_rx_iov = conn->ksnc_rx_iov_space.iov; conn->ksnc_rx_niov = lnet_extract_iov(LNET_MAX_IOV, conn->ksnc_rx_iov, - niov, iov, offset, mlen); + to->nr_segs, to->kvec, + to->iov_offset, iov_iter_count(to)); } else { conn->ksnc_rx_niov = 0; conn->ksnc_rx_iov = NULL; conn->ksnc_rx_kiov = conn->ksnc_rx_iov_space.kiov; conn->ksnc_rx_nkiov = lnet_extract_kiov(LNET_MAX_IOV, conn->ksnc_rx_kiov, - niov, kiov, offset, mlen); + to->nr_segs, to->bvec, + to->iov_offset, iov_iter_count(to)); } - LASSERT(mlen == - lnet_iov_nob(conn->ksnc_rx_niov, conn->ksnc_rx_iov) + - lnet_kiov_nob(conn->ksnc_rx_nkiov, conn->ksnc_rx_kiov)); - LASSERT(conn->ksnc_rx_scheduled); spin_lock_bh(&sched->kss_lock); diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c index 9a8a571674f4..7614e024c86d 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-move.c +++ b/drivers/staging/lustre/lnet/lnet/lib-move.c @@ -569,6 +569,7 @@ lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed, unsigned int niov = 0; struct kvec *iov = NULL; lnet_kiov_t *kiov = NULL; + struct iov_iter to; int rc; LASSERT(!in_interrupt()); @@ -594,8 +595,14 @@ lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed, } } - rc = ni->ni_lnd->lnd_recv(ni, private, msg, delayed, - niov, iov, kiov, offset, mlen, rlen); + if (iov) { + iov_iter_kvec(&to, ITER_KVEC | READ, iov, niov, mlen + offset); + iov_iter_advance(&to, offset); + } else { + iov_iter_bvec(&to, ITER_BVEC | READ, kiov, niov, mlen + offset); + iov_iter_advance(&to, offset); + } + rc = ni->ni_lnd->lnd_recv(ni, private, msg, delayed, &to, rlen); if (rc < 0) lnet_finalize(ni, msg, rc); } diff --git a/drivers/staging/lustre/lnet/lnet/lo.c b/drivers/staging/lustre/lnet/lnet/lo.c index 08402712a452..131f84d22ead 100644 --- a/drivers/staging/lustre/lnet/lnet/lo.c +++ b/drivers/staging/lustre/lnet/lnet/lo.c @@ -42,35 +42,33 @@ lolnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg) static int lolnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, - int delayed, unsigned int niov, - struct kvec *iov, lnet_kiov_t *kiov, - unsigned int offset, unsigned int mlen, unsigned int rlen) + int delayed, struct iov_iter *to, unsigned int rlen) { lnet_msg_t *sendmsg = private; if (lntmsg) { /* not discarding */ if (sendmsg->msg_iov) { - if (iov) - lnet_copy_iov2iov(niov, iov, offset, + if (to->type & ITER_KVEC) + lnet_copy_iov2iov(to->nr_segs, to->kvec, to->iov_offset, sendmsg->msg_niov, sendmsg->msg_iov, - sendmsg->msg_offset, mlen); + sendmsg->msg_offset, iov_iter_count(to)); else - lnet_copy_iov2kiov(niov, kiov, offset, + lnet_copy_iov2kiov(to->nr_segs, to->bvec, to->iov_offset, sendmsg->msg_niov, sendmsg->msg_iov, - sendmsg->msg_offset, mlen); + sendmsg->msg_offset, iov_iter_count(to)); } else { - if (iov) - lnet_copy_kiov2iov(niov, iov, offset, + if (to->type & ITER_KVEC) + lnet_copy_kiov2iov(to->nr_segs, to->kvec, to->iov_offset, sendmsg->msg_niov, sendmsg->msg_kiov, - sendmsg->msg_offset, mlen); + sendmsg->msg_offset, iov_iter_count(to)); else - lnet_copy_kiov2kiov(niov, kiov, offset, + lnet_copy_kiov2kiov(to->nr_segs, to->bvec, to->iov_offset, sendmsg->msg_niov, sendmsg->msg_kiov, - sendmsg->msg_offset, mlen); + sendmsg->msg_offset, iov_iter_count(to)); } lnet_finalize(ni, lntmsg, 0); |