The quilt patch titled
Subject: mm: migrate_device: use a folio in migrate_device_range()
has been removed from the -mm tree. Its filename was
mm-migrate_device-use-a-folio-in-migrate_device_range.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: migrate_device: use a folio in migrate_device_range()
Date: Mon, 26 Aug 2024 14:58:10 +0800
Save two calls to compound_head() and use folio throughout.
Link: https://lkml.kernel.org/r/20240826065814.1336616-3-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Reviewed-by: Alistair Popple <apopple@xxxxxxxxxx>
Cc: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Zi Yan <ziy@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate_device.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/mm/migrate_device.c~mm-migrate_device-use-a-folio-in-migrate_device_range
+++ a/mm/migrate_device.c
@@ -898,16 +898,17 @@ int migrate_device_range(unsigned long *
unsigned long i, pfn;
for (pfn = start, i = 0; i < npages; pfn++, i++) {
- struct page *page = pfn_to_page(pfn);
+ struct folio *folio;
- if (!get_page_unless_zero(page)) {
+ folio = folio_get_nontail_page(pfn_to_page(pfn));
+ if (!folio) {
src_pfns[i] = 0;
continue;
}
- if (!trylock_page(page)) {
+ if (!folio_trylock(folio)) {
src_pfns[i] = 0;
- put_page(page);
+ folio_put(folio);
continue;
}
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-support-poison-recovery-from-do_cow_fault.patch
mm-support-poison-recovery-from-copy_present_page.patch
