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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2023-05-16 08:38:17 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-10 01:25:24 +0200 |
| commit | 31a1b9d7fe768db521b12287ec6426983e9787e3 (patch) | |
| tree | c72d41f5518c0f6d28c9a3756f17403eee24b30b /mm/page_alloc.c | |
| parent | mm: page_alloc: split out DEBUG_PAGEALLOC (diff) | |
| download | linux-31a1b9d7fe768db521b12287ec6426983e9787e3.tar.xz linux-31a1b9d7fe768db521b12287ec6426983e9787e3.zip | |
mm: page_alloc: move mark_free_page() into snapshot.c
The mark_free_page() is only used in kernel/power/snapshot.c, move it out
to reduce a bit of page_alloc.c
Link: https://lkml.kernel.org/r/20230516063821.121844-10-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 40fa763c5074..8d306203e555 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2365,61 +2365,6 @@ void drain_all_pages(struct zone *zone) __drain_all_pages(zone, false); } -#ifdef CONFIG_HIBERNATION - -/* - * Touch the watchdog for every WD_PAGE_COUNT pages. - */ -#define WD_PAGE_COUNT (128*1024) - -void mark_free_pages(struct zone *zone) -{ - unsigned long pfn, max_zone_pfn, page_count = WD_PAGE_COUNT; - unsigned long flags; - unsigned int order, t; - struct page *page; - - if (zone_is_empty(zone)) - return; - - 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); - - 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) { - unsigned long i; - - pfn = page_to_pfn(page); - for (i = 0; i < (1UL << order); i++) { - if (!--page_count) { - touch_nmi_watchdog(); - page_count = WD_PAGE_COUNT; - } - swsusp_set_page_free(pfn_to_page(pfn + i)); - } - } - } - spin_unlock_irqrestore(&zone->lock, flags); -} -#endif /* CONFIG_PM */ - static bool free_unref_page_prepare(struct page *page, unsigned long pfn, unsigned int order) { |