linux/fs/notify/dnotify/Kconfig
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Prefs
   1config DNOTIFY
   2        bool "Dnotify support"
   3        select FSNOTIFY
   4        default y
   5        help
   6          Dnotify is a directory-based per-fd file change notification system
   7          that uses signals to communicate events to user-space.  There exist
   8          superior alternatives, but some applications may still rely on
   9          dnotify.
  10
  11          If unsure, say Y.
  12