[PATCH] MAINTAINERS: Notify the "Device Memory" community of memory hotplug changes

[PATCH] MAINTAINERS: Notify the "Device Memory" community of memory hotplug changes

[Dan Williams]

The recent episode of a warning regression in memremap_pages() [1]
highlights that relevant updates are being missed by folks that care about
core ZONE_DEVICE changes. Yes, CXL folks should pay more attention to
linux-mm@, but it also would not hurt to copy linux-cxl@, where most Device
Memory folks hang out, on memory hotplug changes by default.

Link: http://lore.kernel.org/20251219123717.39330-1-john@groves.net [1]
Cc: David Hildenbrand <david@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: John Groves <John@Groves.net>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 5b11839cba9d..076322fe91de 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16426,6 +16426,7 @@ MEMORY HOT(UN)PLUG
 M:	David Hildenbrand <david@kernel.org>
 M:	Oscar Salvador <osalvador@suse.de>
 L:	linux-mm@kvack.org
+L:	linux-cxl@vger.kernel.org
 S:	Maintained
 F:	Documentation/admin-guide/mm/memory-hotplug.rst
 F:	Documentation/core-api/memory-hotplug.rst

base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
-- 
2.51.1

Re: [PATCH] MAINTAINERS: Notify the "Device Memory" community of memory hotplug changes

[David Hildenbrand (Red Hat)]

On 12/20/25 01:03, Dan Williams wrote:
> The recent episode of a warning regression in memremap_pages() [1]
> highlights that relevant updates are being missed by folks that care about
> core ZONE_DEVICE changes. Yes, CXL folks should pay more attention to
> linux-mm@, but it also would not hurt to copy linux-cxl@, where most Device
> Memory folks hang out, on memory hotplug changes by default.

In general, that patch set went upstream too quickly. Quickly as in: 
more review should have been done. But here we are.

I reviewed that patch of that patch set but missed this change ...

Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>

-- 
Cheers

David

Re: [PATCH] MAINTAINERS: Notify the "Device Memory" community of memory hotplug changes

[Jonathan Cameron]

On Fri, 19 Dec 2025 16:03:27 -0800
Dan Williams <dan.j.williams@intel.com> wrote:

> The recent episode of a warning regression in memremap_pages() [1]
> highlights that relevant updates are being missed by folks that care about
> core ZONE_DEVICE changes. Yes, CXL folks should pay more attention to
> linux-mm@, but it also would not hurt to copy linux-cxl@, where most Device
> Memory folks hang out, on memory hotplug changes by default.
> 
> Link: http://lore.kernel.org/20251219123717.39330-1-john@groves.net [1]
> Cc: David Hildenbrand <david@kernel.org>
> Cc: Oscar Salvador <osalvador@suse.de>
> Cc: Davidlohr Bueso <dave@stgolabs.net>
> Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
> Cc: Dave Jiang <dave.jiang@intel.com>
> Cc: Alison Schofield <alison.schofield@intel.com>
> Cc: Vishal Verma <vishal.l.verma@intel.com>
> Cc: Ira Weiny <ira.weiny@intel.com>
> Cc: John Groves <John@Groves.net>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Makes sense to me.

Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com>
 
> ---
>  MAINTAINERS | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5b11839cba9d..076322fe91de 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16426,6 +16426,7 @@ MEMORY HOT(UN)PLUG
>  M:	David Hildenbrand <david@kernel.org>
>  M:	Oscar Salvador <osalvador@suse.de>
>  L:	linux-mm@kvack.org
> +L:	linux-cxl@vger.kernel.org
>  S:	Maintained
>  F:	Documentation/admin-guide/mm/memory-hotplug.rst
>  F:	Documentation/core-api/memory-hotplug.rst
> 
> base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8

Re: [PATCH] MAINTAINERS: Notify the "Device Memory" community of memory hotplug changes

[John Groves]

On 25/12/19 04:03PM, Dan Williams wrote:
> The recent episode of a warning regression in memremap_pages() [1]
> highlights that relevant updates are being missed by folks that care about
> core ZONE_DEVICE changes. Yes, CXL folks should pay more attention to
> linux-mm@, but it also would not hurt to copy linux-cxl@, where most Device
> Memory folks hang out, on memory hotplug changes by default.
> 
> Link: http://lore.kernel.org/20251219123717.39330-1-john@groves.net [1]
> Cc: David Hildenbrand <david@kernel.org>
> Cc: Oscar Salvador <osalvador@suse.de>
> Cc: Davidlohr Bueso <dave@stgolabs.net>
> Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
> Cc: Dave Jiang <dave.jiang@intel.com>
> Cc: Alison Schofield <alison.schofield@intel.com>
> Cc: Vishal Verma <vishal.l.verma@intel.com>
> Cc: Ira Weiny <ira.weiny@intel.com>
> Cc: John Groves <John@Groves.net>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
> ---
>  MAINTAINERS | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5b11839cba9d..076322fe91de 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -16426,6 +16426,7 @@ MEMORY HOT(UN)PLUG
>  M:	David Hildenbrand <david@kernel.org>
>  M:	Oscar Salvador <osalvador@suse.de>
>  L:	linux-mm@kvack.org
> +L:	linux-cxl@vger.kernel.org
>  S:	Maintained
>  F:	Documentation/admin-guide/mm/memory-hotplug.rst
>  F:	Documentation/core-api/memory-hotplug.rst
> 
> base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
> -- 
> 2.51.1
> 

Acked-by: John Groves <John@Groves.net>