All of
 help / color / mirror / Atom feed
Subject: [to-be-updated] acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch removed from -mm tree
Date: Fri, 19 Mar 2021 08:45:02 -0700	[thread overview]
Message-ID: <> (raw)

The patch titled
     Subject: acpi,memhotplug: enable MHP_MEMMAP_ON_MEMORY when supported
has been removed from the -mm tree.  Its filename was

This patch was dropped because an updated version will be merged

From: Oscar Salvador <>
Subject: acpi,memhotplug: enable MHP_MEMMAP_ON_MEMORY when supported

Let the caller check whether it can pass MHP_MEMMAP_ON_MEMORY by checking
mhp_supports_memmap_on_memory().  MHP_MEMMAP_ON_MEMORY can only be set in
case ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE is enabled, the architecture
supports altmap, and the range to be added spans a single memory block.

Signed-off-by: Oscar Salvador <>
Reviewed-by: David Hildenbrand <>
Cc: Anshuman Khandual <>
Cc: Michal Hocko <>
Cc: Pavel Tatashin <>
Cc: Vlastimil Babka <>
Signed-off-by: Andrew Morton <>

 drivers/acpi/acpi_memhotplug.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/acpi/acpi_memhotplug.c~acpimemhotplug-enable-mhp_memmap_on_memory-when-supported
+++ a/drivers/acpi/acpi_memhotplug.c
@@ -171,6 +171,7 @@ static int acpi_memory_enable_device(str
 	acpi_handle handle = mem_device->device->handle;
 	int result, num_enabled = 0;
 	struct acpi_memory_info *info;
+	mhp_t mhp_flags = MHP_NONE;
 	int node;
 	node = acpi_get_node(handle);
@@ -194,8 +195,10 @@ static int acpi_memory_enable_device(str
 		if (node < 0)
 			node = memory_add_physaddr_to_nid(info->start_addr);
+		if (mhp_supports_memmap_on_memory(info->length))
+			mhp_flags |= MHP_MEMMAP_ON_MEMORY;
 		result = __add_memory(node, info->start_addr, info->length,
-				      MHP_NONE);
+				      mhp_flags);
 		 * If the memory block has been used by the kernel, add_memory()

Patches currently in -mm which might be from are


             reply	other threads:[~2021-03-19 15:46 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-19 15:45 akpm [this message]
2021-04-16 18:12 [to-be-updated] acpimemhotplug-enable-mhp_memmap_on_memory-when-supported.patch removed from -mm tree akpm
2021-04-16 19:46 akpm
2021-04-22  4:18 akpm

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \ \ \ \ \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.