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SubjectRe: [PATCH 24/32] vfs: syscall: Add fsopen() to prepare for superblock creation [ver #9]
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> On Jul 12, 2018, at 4:35 PM, David Howells <dhowells@redhat.com> wrote:
>
> Andy Lutomirski <luto@amacapital.net> wrote:
>
>> I tend to think that this *should* fail using the new API. The semantics of
>> the second mount request are bizarre at best.
>
> You still have to support existing behaviour lest you break userspace.
>

I assume the existing behavior is that a bind mount is created? If so, the new mount(8) tool could do it in user code.
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