Inotify support for userspace

modulename: inotify_fsnotify.ko

configname: CONFIG_INOTIFY_USER

Linux Kernel Configuration
└─>File systems
└─>Inotify support for userspace
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here to enable inotify support for userspace, including the
associated system calls. Inotify allows monitoring of both files and
directories via a single open fd. Events are read from the file
descriptor, which is also select()- and poll()-able.
Inotify fixes numerous shortcomings in dnotify and introduces several
new features including multiple file events, one-shot support, and
unmount notification.

For more information, see <file:Documentation/filesystems/inotify.rst>

If unsure, say Y.

source code:
selects
CONFIG_FSNOTIFY