[$] Filesystem notification, part 2: A deeper investigation of inotify
In the first article in this series, we briefly looked at the original Linux filesystem notification API, dnotify, and noted a number of its limitations. We then turned our attention to its successor, inotify, and saw how the design of the newer API addressed various problems with the dnotify API while providing a number of other benefits as well. At first glance, inotify seems to provide a complete solution for the task of creating an application that reliably monitors the state of a filesystem. However, we are about to see that this isn't quite the case.

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