The patch titled
Subject: mm: use is_zone_movable_page() helper
has been added to the -mm mm-unstable branch. Its filename is
mm-use-is_zone_movable_page-helper.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-use-is_zone_movable_page-helper.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: use is_zone_movable_page() helper
Date: Tue, 26 Jul 2022 21:11:35 +0800
Use is_zone_movable_page() helper to simplify code.
Link: https://lkml.kernel.org/r/20220726131135.146912-1-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/virtio/virtio_mem.c | 6 ++----
mm/memory_hotplug.c | 2 +-
2 files changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/virtio/virtio_mem.c~mm-use-is_zone_movable_page-helper
+++ a/drivers/virtio/virtio_mem.c
@@ -862,8 +862,7 @@ static void virtio_mem_sbm_notify_online
unsigned long mb_id,
unsigned long start_pfn)
{
- const bool is_movable = page_zonenum(pfn_to_page(start_pfn)) ==
- ZONE_MOVABLE;
+ const bool is_movable = is_zone_movable_page(pfn_to_page(start_pfn));
int new_state;
switch (virtio_mem_sbm_get_mb_state(vm, mb_id)) {
@@ -1158,8 +1157,7 @@ static void virtio_mem_fake_online(unsig
*/
static int virtio_mem_fake_offline(unsigned long pfn, unsigned long nr_pages)
{
- const bool is_movable = page_zonenum(pfn_to_page(pfn)) ==
- ZONE_MOVABLE;
+ const bool is_movable = is_zone_movable_page(pfn_to_page(pfn));
int rc, retry_count;
/*
--- a/mm/memory_hotplug.c~mm-use-is_zone_movable_page-helper
+++ a/mm/memory_hotplug.c
@@ -932,7 +932,7 @@ static struct zone *auto_movable_zone_fo
if (!page)
continue;
/* If anything is !MOVABLE online the rest !MOVABLE. */
- if (page_zonenum(page) != ZONE_MOVABLE)
+ if (!is_zone_movable_page(page))
goto kernel_zone;
online_pages += PAGES_PER_SECTION;
}
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-cleanup-is_highmem.patch
mm-use-is_zone_movable_page-helper.patch
