LXR linux/include/linux/migrate

   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 */
  10enum migrate_mode {
  11        MIGRATE_ASYNC,
  12        MIGRATE_SYNC_LIGHT,
  13        MIGRATE_SYNC,
  14};
  15
  16#endif          /* MIGRATE_MODE_H_INCLUDED */
  17