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.\"-
.\" SPDX-License-Identifier: BSD-2-Clause
.\"
.\" Copyright (c) 2025 Klara, Inc.
.\"
.Dd May 27, 2025
.Dt VOP_INOTIFY 9
.Os
.Sh NAME
.Nm VOP_INOTIFY
.Nd vnode inotify interface
.Sh SYNOPSIS
.In sys/param.h
.In sys/vnode.h
.Ft int
.Fo VOP_INOTIFY
.Fa struct vnode *vp
.Fa struct vnode *dvp
.Fa struct componentname *cnp
.Fa int event
.Fa uint32_t cookie
.Fc
.Ft int
.Fo VOP_INOTIFY_ADD_WATCH
.Fa struct vnode *vp
.Fa struct inotify_softc *sc
.Fa uint32_t mask
.Fa uint32_t *wdp
.Fa struct thread *td
.Fc
.Sh DESCRIPTION
The
.Fn VOP_INOTIFY
operation notifies the
.Xr inotify 2
subsystem of a file system event on a vnode.
The
.Fa dvp
and
.Fa cnp
arguments are optional and are only used to obtain a file name for the event.
If they are omitted, the inotify subsystem will use the file name cache to
find a name for the vnode, but this is more expensive.
.Pp
The
.Fn VOP_INOTIFY_ADD_WATCH
operation is for internal use by the inotify subsystem to add a watch to a
vnode.
.Sh LOCKS
The
.Fn VOP_INOTIFY
operation does not assume any particular vnode lock state.
The
.Fn VOP_INOTIFY_ADD_WATCH
operation should be called with the vnode locked.
.Sh RETURN VALUES
Zero is returned on success, otherwise an error code is returned.
.Sh SEE ALSO
.Xr inotify 2 ,
.Xr vnode 9
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