Do you mean "potential mount point", or "currently active mount point"? For the latter, compare the dev number from stat for the directory, and for the directory with /.. appended. If the dev numbers are different, it's an active mount point.

-- Randal L. Schwartz, Perl hacker

In reply to Re: How best test that a directory is a mount point of a mounted filesystem? by merlyn
in thread How best test that a directory is a mount point of a mounted filesystem? by Plankton

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