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Message-Id: <1423032009-18367-4-git-send-email-viro@ZenIV.linux.org.uk> Date: Wed, 4 Feb 2015 06:39:55 +0000 From: Al Viro <viro@...IV.linux.org.uk> To: David Miller <davem@...emloft.net> Cc: netdev@...r.kernel.org Subject: [PATCH v3 04/18] vmci: propagate msghdr all way down to __qp_memcpy_to_queue() From: Al Viro <viro@...iv.linux.org.uk> Switch from passing msg->iov_iter.iov to passing msg itself Signed-off-by: Al Viro <viro@...iv.linux.org.uk> --- drivers/misc/vmw_vmci/vmci_queue_pair.c | 16 ++++++++-------- include/linux/vmw_vmci_api.h | 2 +- net/vmw_vsock/vmci_transport.c | 3 +-- 3 files changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c index 7aaaf51..35f19a6 100644 --- a/drivers/misc/vmw_vmci/vmci_queue_pair.c +++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c @@ -370,12 +370,12 @@ static int __qp_memcpy_to_queue(struct vmci_queue *queue, to_copy = size - bytes_copied; if (is_iovec) { - struct iovec *iov = (struct iovec *)src; + struct msghdr *msg = (struct msghdr *)src; int err; /* The iovec will track bytes_copied internally. */ - err = memcpy_fromiovec((u8 *)va + page_offset, - iov, to_copy); + err = memcpy_from_msg((u8 *)va + page_offset, + msg, to_copy); if (err != 0) { if (kernel_if->host) kunmap(kernel_if->u.h.page[page_index]); @@ -580,7 +580,7 @@ static int qp_memcpy_from_queue(void *dest, */ static int qp_memcpy_to_queue_iov(struct vmci_queue *queue, u64 queue_offset, - const void *src, + const void *msg, size_t src_offset, size_t size) { @@ -588,7 +588,7 @@ static int qp_memcpy_to_queue_iov(struct vmci_queue *queue, * We ignore src_offset because src is really a struct iovec * and will * maintain offset internally. */ - return __qp_memcpy_to_queue(queue, queue_offset, src, size, true); + return __qp_memcpy_to_queue(queue, queue_offset, msg, size, true); } /* @@ -3223,13 +3223,13 @@ EXPORT_SYMBOL_GPL(vmci_qpair_peek); * of bytes enqueued or < 0 on error. */ ssize_t vmci_qpair_enquev(struct vmci_qp *qpair, - void *iov, + struct msghdr *msg, size_t iov_size, int buf_type) { ssize_t result; - if (!qpair || !iov) + if (!qpair) return VMCI_ERROR_INVALID_ARGS; qp_lock(qpair); @@ -3238,7 +3238,7 @@ ssize_t vmci_qpair_enquev(struct vmci_qp *qpair, result = qp_enqueue_locked(qpair->produce_q, qpair->consume_q, qpair->produce_q_size, - iov, iov_size, + msg, iov_size, qp_memcpy_to_queue_iov); if (result == VMCI_ERROR_QUEUEPAIR_NOT_READY && diff --git a/include/linux/vmw_vmci_api.h b/include/linux/vmw_vmci_api.h index 5691f75..63df3a2a 100644 --- a/include/linux/vmw_vmci_api.h +++ b/include/linux/vmw_vmci_api.h @@ -74,7 +74,7 @@ ssize_t vmci_qpair_dequeue(struct vmci_qp *qpair, ssize_t vmci_qpair_peek(struct vmci_qp *qpair, void *buf, size_t buf_size, int mode); ssize_t vmci_qpair_enquev(struct vmci_qp *qpair, - void *iov, size_t iov_size, int mode); + struct msghdr *msg, size_t iov_size, int mode); ssize_t vmci_qpair_dequev(struct vmci_qp *qpair, struct msghdr *msg, size_t iov_size, int mode); ssize_t vmci_qpair_peekv(struct vmci_qp *qpair, struct msghdr *msg, size_t iov_size, diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c index 02d2e52..7f32550 100644 --- a/net/vmw_vsock/vmci_transport.c +++ b/net/vmw_vsock/vmci_transport.c @@ -1850,8 +1850,7 @@ static ssize_t vmci_transport_stream_enqueue( struct msghdr *msg, size_t len) { - /* XXX: stripping const */ - return vmci_qpair_enquev(vmci_trans(vsk)->qpair, (struct iovec *)msg->msg_iter.iov, len, 0); + return vmci_qpair_enquev(vmci_trans(vsk)->qpair, msg, len, 0); } static s64 vmci_transport_stream_has_data(struct vsock_sock *vsk) -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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