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 */
11 enum migrate_mode {
12 MIGRATE_ASYNC,
13 MIGRATE_SYNC_LIGHT,
14 MIGRATE_SYNC,
15 };
16
17 enum 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 */
32
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