Re: [PATCH] namespace.c: fix bind mount from foreign namespace

[Miklos Szeredi]

> A vfsmount can only be in a single namespace at a time, since each
> mount tree is rooted in a single namespace.  So what you are saying is
> impossible.

To be more precise a vfsmount can only be in _at_ _most_ one
namespace.  When it is detached from a mount tree, it's no longer in
_any_ namespace.

There even seems to be some confusion about that in namespace.c.  I
think mnt_namespace should be set to NULL in detach_mnt() instead of
__put_namespace().

Miklos
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