migrate_mode.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef MIGRATE_MODE_H_INCLUDED
 3#define MIGRATE_MODE_H_INCLUDED
 4/*
 5 * MIGRATE_ASYNC means never block
 6 * MIGRATE_SYNC_LIGHT in the current implementation means to allow blocking
 7 *	on most operations but not ->writepage as the potential stall time
 8 *	is too significant
 9 * MIGRATE_SYNC will block when migrating pages
10 */
11enum migrate_mode {
12	MIGRATE_ASYNC,
13	MIGRATE_SYNC_LIGHT,
14	MIGRATE_SYNC,
15};
16
17enum migrate_reason {
18	MR_COMPACTION,
19	MR_MEMORY_FAILURE,
20	MR_MEMORY_HOTPLUG,
21	MR_SYSCALL,		/* also applies to cpusets */
22	MR_MEMPOLICY_MBIND,
23	MR_NUMA_MISPLACED,
24	MR_CONTIG_RANGE,
25	MR_LONGTERM_PIN,
26	MR_DEMOTION,
27	MR_DAMON,
28	MR_TYPES
29};
30
31#endif		/* MIGRATE_MODE_H_INCLUDED */