Mounting and Unmounting

Mounting and unmounting directory trees is much more complex than simply registering filesystems because the actions required on kernel-internal data structures are considerably more complicated than adding objects to a linked list. Filesystem mounting is initiated by the mount system call. Before discussing the individual steps in detail, we need to clarify which tasks must be performed to mount a new filesystem in an existing directory tree. We also need to look at the data structure used to describe mount points.

Continue reading here: VFS Mount Structures

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