Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
new file mode 100644
index 000000000..4ac343928
--- /dev/null
+++ b/include/linux/page-isolation.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_PAGEISOLATION_H
+#define __LINUX_PAGEISOLATION_H
+
+#ifdef CONFIG_MEMORY_ISOLATION
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+	return zone->nr_isolate_pageblock;
+}
+static inline bool is_migrate_isolate_page(struct page *page)
+{
+	return get_pageblock_migratetype(page) == MIGRATE_ISOLATE;
+}
+static inline bool is_migrate_isolate(int migratetype)
+{
+	return migratetype == MIGRATE_ISOLATE;
+}
+#else
+static inline bool has_isolate_pageblock(struct zone *zone)
+{
+	return false;
+}
+static inline bool is_migrate_isolate_page(struct page *page)
+{
+	return false;
+}
+static inline bool is_migrate_isolate(int migratetype)
+{
+	return false;
+}
+#endif
+
+#define MEMORY_OFFLINE	0x1
+#define REPORT_FAILURE	0x2
+
+void set_pageblock_migratetype(struct page *page, int migratetype);
+int move_freepages_block(struct zone *zone, struct page *page,
+				int migratetype, int *num_movable);
+
+int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
+			     int migratetype, int flags, gfp_t gfp_flags);
+
+void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
+			     int migratetype);
+
+int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
+			int isol_flags);
+#endif