Re: [PATCH v4 3/5] mm: mark vma as detached until it's added into vma tree

[Shakeel Butt]

On Tue, Nov 19, 2024 at 04:08:24PM -0800, Suren Baghdasaryan wrote:
> Current implementation does not set detached flag when a VMA is first
> allocated. This does not represent the real state of the VMA, which is
> detached until it is added into mm's VMA tree. Fix this by marking new
> VMAs as detached and resetting detached flag only after VMA is added
> into a tree.
> Introduce vma_mark_attached() to make the API more readable and to
> simplify possible future cleanup when vma->vm_mm might be used to
> indicate detached vma and vma_mark_attached() will need an additional
> mm parameter.
> 
> Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>

Reviewed-by: Shakeel Butt <shakeel.butt@xxxxxxxxx>