| Andrew Morton | 6536e31 | 2012-01-20 14:33:53 -0800 | [diff] [blame] | 1 | #ifndef MIGRATE_MODE_H_INCLUDED |
| 2 | #define MIGRATE_MODE_H_INCLUDED |
| 3 | /* |
| 4 | * MIGRATE_ASYNC means never block |
| 5 | * MIGRATE_SYNC_LIGHT in the current implementation means to allow blocking |
| 6 | * on most operations but not ->writepage as the potential stall time |
| 7 | * is too significant |
| 8 | * MIGRATE_SYNC will block when migrating pages |
| 9 | */ |
| 10 | enum migrate_mode { |
| 11 | MIGRATE_ASYNC, |
| 12 | MIGRATE_SYNC_LIGHT, |
| 13 | MIGRATE_SYNC, |
| 14 | }; |
| 15 | |
| 16 | #endif /* MIGRATE_MODE_H_INCLUDED */ |