/* 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);

bool move_freepages_block_isolate(struct zone *zone, struct page *page,
                  int migratetype);

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);


#ifdef CONFIG_PAX_KERNSEAL
void pax_setup_pageblock(struct page *page, enum migratetype old_block_type, enum migratetype start_type);
enum migratetype __init pax_get_pmd_migratetype(unsigned long pfn);
#else
static inline void pax_setup_pageblock(struct page *page, enum migratetype old_block_type, enum migratetype start_type)
{
}
static inline enum migratetype pax_get_pmd_migratetype(unsigned long pfn)
{
    return MIGRATE_MOVABLE;
}
#endif

#endif