# Re: \[PATCH v6 00/15\] memory-hotplug: hot-remove physical memory

- From: Andrew Morton \<akpm@linux-foundation.org\>
- Date: 2013-01-09 23:33:28 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2013/01/3981115
- Thread: https://ratatoskr.run/linux-mm/2013/01/3980481/t.md

```text
On Wed, 9 Jan 2013 17:32:24 +0800
Tang Chen [ref] wrote:

> This patch-set aims to implement physical memory hot-removing.

As you were on th patch delivery path, all of these patches should have
your Signed-off-by:.  But some were missing it.  I fixed this in my
copy of the patches.


I suspect this patchset adds a significant amount of code which will
not be used if CONFIG_MEMORY_HOTPLUG=n.  "[PATCH v6 06/15]
memory-hotplug: implement register_page_bootmem_info_section of
sparse-vmemmap", for example.  This is not a good thing, so please go
through the patchset (in fact, go through all the memhotplug code) and
let's see if we can reduce the bloat for CONFIG_MEMORY_HOTPLUG=n
kernels.

This needn't be done immediately - it would be OK by me if you were to
defer this exercise until all the new memhotplug code is largely in
place.  But please, let's do it.
```