Re: [PATCH v8 00/10] Multi-size THP for anonymous memory

[Andrew Morton]

On Mon,  4 Dec 2023 10:20:17 +0000 Ryan Roberts <ryan.roberts@xxxxxxx> wrote:

> Hi All,
> 
> 
> Prerequisites
> =============
> 
> Some work items identified as being prerequisites are listed on page 3 at [9].
> The summary is:
> 
> | item                          | status                  |
> |:------------------------------|:------------------------|
> | mlock                         | In mainline (v6.7)      |
> | madvise                       | In mainline (v6.6)      |
> | compaction                    | v1 posted [10]          |
> | numa balancing                | Investigated: see below |
> | user-triggered page migration | In mainline (v6.7)      |
> | khugepaged collapse           | In mainline (NOP)       |

What does "prerequisites" mean here?  Won't compile without?  Kernel
crashes without?  Nice-to-have-after?  Please expand on this.

I looked at [9], but access is denied.

> [9] https://drive.google.com/file/d/1GnfYFpr7_c1kA41liRUW5YtCb8Cj18Ud/view?usp=sharing&resourcekey=0-U1Mj3-RhLD1JV6EThpyPyA