include/linux/migrate_mode.h

   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 */