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mount race prevention

To: tech-userlevel%netbsd.org@localhost
Subject: mount race prevention
From: Edgar Fuß <ef%math.uni-bonn.de@localhost>
Date: Tue, 18 Nov 2025 17:53:50 +0100

Is there a way to prevent two processes to mount something to the same 
mount point? I.e., is there a way to call mount(2) in a way that it fails 
if would mount on top of anonther mount?

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