Re: [PATCH v8 2/4] uprobe: use original page when all uprobes are removed

[Oleg Nesterov]

On 07/24, Oleg Nesterov wrote:
>
> On 07/24, Song Liu wrote:
> >
> > This patch allows uprobe to use original page when possible (all uprobes
> > on the page are already removed).
>
> and only if the original page is already in the page cache and uptodate,
> right?
>
> another reason why I think unmap makes more sense... but I won't argue.

but somehow I forgot we need to read the original page anyway to check
pages_identical(), so unmap is not really better, please forget.

Oleg.