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Index: head/lib/libc/sys/kqueue.2
===================================================================
--- head/lib/libc/sys/kqueue.2
+++ head/lib/libc/sys/kqueue.2
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd June 17, 2017
+.Dd June 22, 2017
.Dt KQUEUE 2
.Os
.Sh NAME
@@ -351,33 +351,18 @@
Takes a descriptor as the identifier, and returns whenever
there is no remaining data in the write buffer.
.It Dv EVFILT_AIO
-The sigevent portion of the AIO request is filled in, with
-.Va sigev_notify_kqueue
-containing the descriptor of the kqueue that the event should
-be attached to,
-.Va sigev_notify_kevent_flags
-containing the kevent flags which should be
-.Dv EV_ONESHOT ,
-.Dv EV_CLEAR
-or
-.Dv EV_DISPATCH ,
-.Va sigev_value
-containing the udata value, and
-.Va sigev_notify
-set to
-.Dv SIGEV_KEVENT .
-When the
-.Fn aio_*
-system call is made, the event will be registered
-with the specified kqueue, and the
-.Va ident
-argument set to the
-.Fa struct aiocb
-returned by the
-.Fn aio_*
-system call.
+Events for this filter are not registered with
+.Fn kevent
+directly but are registered via the
+.Va aio_sigevent
+member of an asychronous I/O request when it is scheduled via an asychronous I/O
+system call such as
+.Fn aio_read .
The filter returns under the same conditions as
.Fn aio_error .
+For more details on this filter see
+.Xr sigevent 3 and
+.Xr aio 4 .
.It Dv EVFILT_VNODE
Takes a file descriptor as the identifier and the events to watch for in
.Va fflags ,
Index: head/share/man/man4/aio.4
===================================================================
--- head/share/man/man4/aio.4
+++ head/share/man/man4/aio.4
@@ -27,7 +27,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 21, 2016
+.Dd June 22, 2017
.Dt AIO 4
.Os
.Sh NAME
@@ -161,11 +161,27 @@
For
.Dv SIGEV_KEVENT
notifications,
-the posted kevent will contain:
+the
+.Va sigevent
+.Ap
+s
+.Va sigev_notify_kqueue
+field should contain the descriptor of the kqueue that the event should be attached
+to, its
+.Va sigev_notify_kevent_flags
+field may contain
+.Dv EV_ONESHOT ,
+.Dv EV_CLEAR , and/or
+.Dv EV_DISPATCH , and its
+.Va sigev_notify
+field should be set to
+.Dv SIGEV_KEVENT .
+The posted kevent will contain:
.Bl -column ".Va filter"
.It Sy Member Ta Sy Value
.It Va ident Ta asynchronous I/O control buffer pointer
.It Va filter Ta Dv EVFILT_AIO
+.It Va flags Ta Dv EV_EOF
.It Va udata Ta
value stored in
.Va aio_sigevent.sigev_value

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