mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-15 23:41:35 -04:00
Code Issues Packages Projects Releases Wiki Activity

mm, PM: use for_each_valid_pfn() in kernel/power/snapshot.c

Browse Source 
Link: https://lkml.kernel.org/r/20250423133821.789413-5-dwmw2@infradead.org
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Marc Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Ruihan Li <lrh2000@pku.edu.cn>
Cc: Will Deacon <will@kernel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Woodhouse
2025-04-23 14:33:40 +01:00
committed by Andrew Morton
parent 037926316c
commit 312eca8a14
1 changed files with 21 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
kernel/power/snapshot.c
View File

@@ -1094,16 +1094,15 @@ static void mark_nosave_pages(struct memory_bitmap *bm)
((unsigned long long) region->end_pfn << PAGE_SHIFT)
- 1);
for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++)
if (pfn_valid(pfn)) {
/*
* It is safe to ignore the result of
* mem_bm_set_bit_check() here, since we won't
* touch the PFNs for which the error is
* returned anyway.
*/
mem_bm_set_bit_check(bm, pfn);
}
for_each_valid_pfn(pfn, region->start_pfn, region->end_pfn) {
/*
* It is safe to ignore the result of
* mem_bm_set_bit_check() here, since we won't
* touch the PFNs for which the error is
* returned anyway.
*/
mem_bm_set_bit_check(bm, pfn);
}
}
}
@@ -1255,22 +1254,21 @@ static void mark_free_pages(struct zone *zone)
spin_lock_irqsave(&zone->lock, flags);
max_zone_pfn = zone_end_pfn(zone);
for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++)
if (pfn_valid(pfn)) {
page = pfn_to_page(pfn);
for_each_valid_pfn(pfn, zone->zone_start_pfn, max_zone_pfn) {
page = pfn_to_page(pfn);
if (!--page_count) {
touch_nmi_watchdog();
page_count = WD_PAGE_COUNT;
}
if (page_zone(page) != zone)
continue;
if (!swsusp_page_is_forbidden(page))
swsusp_unset_page_free(page);
if (!--page_count) {
touch_nmi_watchdog();
page_count = WD_PAGE_COUNT;
}
if (page_zone(page) != zone)
continue;
if (!swsusp_page_is_forbidden(page))
swsusp_unset_page_free(page);
}
for_each_migratetype_order(order, t) {
list_for_each_entry(page,
&zone->free_area[order].free_list[t], buddy_list) {