diff options
Diffstat (limited to 'kernel/include/linux/migrate_mode.h')
| -rw-r--r-- | kernel/include/linux/migrate_mode.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/include/linux/migrate_mode.h b/kernel/include/linux/migrate_mode.h new file mode 100644 index 000000000..ebf3d89a3 --- /dev/null +++ b/kernel/include/linux/migrate_mode.h @@ -0,0 +1,16 @@ +#ifndef MIGRATE_MODE_H_INCLUDED +#define MIGRATE_MODE_H_INCLUDED +/* + * MIGRATE_ASYNC means never block + * MIGRATE_SYNC_LIGHT in the current implementation means to allow blocking + * on most operations but not ->writepage as the potential stall time + * is too significant + * MIGRATE_SYNC will block when migrating pages + */ +enum migrate_mode { + MIGRATE_ASYNC, + MIGRATE_SYNC_LIGHT, + MIGRATE_SYNC, +}; + +#endif /* MIGRATE_MODE_H_INCLUDED */ |