Re: [PATCH 2/3] ecryptfs: use private mount in path

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On Fri, Apr 09, 2021 at 06:24:21PM +0200, Christian Brauner wrote:

> Reading through the codebase of ecryptfs it currently takes path->mnt
> and then retrieves that path whenever it needs to perform operations in
> the underlying filesystem. Simply drop the old path->mnt once we've
> created a private mount and place the new private mnt into path->mnt.
> This should be all that is needed to make this work since ecryptfs uses
> the same lower path's vfsmount to construct the paths it uses to operate
> on the underlying filesystem.

> +	mnt = clone_private_mount(&path);

Incidentally, why is that thing anything other than a trivial wrapper
for mnt_clone_internal() (if that - I'm not convinced that the check of
unbindable is the right thing to do here).  Miklos?



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