Re: [PATCH 0/2] mm: tweaks for improving use of vmap_area

[Igor Stoppa]

On 01/05/18 03:15, Andrew Morton wrote:
> On Fri, 27 Apr 2018 03:42:41 +0400 Igor Stoppa <igor.stoppa@xxxxxxxxx> wrote:
>
> > These two patches were written in preparation for the creation of
> > protectable memory, however their use is not limited to pmalloc and can
> > improve the use of virtually contiguous memory.
> >
> > The first provides a faster path from struct page to the vm_struct that
> > tracks it.
> >
> > The second patch renames a single linked list field inside of vmap_area.
> > The list is currently used only for disposing of the data structure, once
> > it is not in use anymore.
> > Which means that it cold be used for other purposes while it's not queued
> > for destruction.
>
> The patches look benign to me (feel free to add my ack),

thank you

> but I'm not seeing a reason to apply them at this time?

I thought they might come useful to others playing with vmap_areas, I'll 
resubmit them anyway with the protected memory set.

But I was also hoping to get some more review, especially for the 
second, which had not received any definitive ACK/NACK, till now.

So, I'm also ok if they can be merged once the others are ACK'ed.

--
igor