76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/* 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 SKIP_HWPOISON 0x1
|
|
#define REPORT_FAILURE 0x2
|
|
|
|
bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
|
|
int migratetype, int flags);
|
|
void set_pageblock_migratetype(struct page *page, int migratetype);
|
|
int move_freepages_block(struct zone *zone, struct page *page,
|
|
int migratetype, int *num_movable);
|
|
|
|
/*
|
|
* Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
|
|
* If specified range includes migrate types other than MOVABLE or CMA,
|
|
* this will fail with -EBUSY.
|
|
*
|
|
* For isolating all pages in the range finally, the caller have to
|
|
* free all pages in the range. test_page_isolated() can be used for
|
|
* test it.
|
|
*
|
|
* The following flags are allowed (they can be combined in a bit mask)
|
|
* SKIP_HWPOISON - ignore hwpoison pages
|
|
* REPORT_FAILURE - report details about the failure to isolate the range
|
|
*/
|
|
int
|
|
start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
|
|
unsigned migratetype, int flags);
|
|
|
|
/*
|
|
* Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
|
|
* target range is [start_pfn, end_pfn)
|
|
*/
|
|
int
|
|
undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
|
|
unsigned migratetype);
|
|
|
|
/*
|
|
* Test all pages in [start_pfn, end_pfn) are isolated or not.
|
|
*/
|
|
int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
|
|
bool skip_hwpoisoned_pages);
|
|
|
|
struct page *alloc_migrate_target(struct page *page, unsigned long private);
|
|
|
|
#endif
|