vmci: fix buf_size in case of iovec-based accesses
authorAl Viro <viro@zeniv.linux.org.uk>
Fri, 14 Jul 2017 20:08:29 +0000 (16:08 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sun, 3 Dec 2017 02:24:01 +0000 (21:24 -0500)
commit19c5b89d8d582cce9a90335de212cf477fe15b95
treeb998b3983df8c51352d4b519cef781246a9f7ba4
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
vmci: fix buf_size in case of iovec-based accesses

Both qp_dequeue_locked() and qp_enqueue_locked() use the
buf_size argument to decide how much would be there to copy;
in case of iovec- (== msghdr-)based primitives it's not
iov_size, it's msg_data_left(msg).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
drivers/misc/vmw_vmci/vmci_queue_pair.c