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편집 파일: migrate_mode.h

/* SPDX-License-Identifier: GPL-2.0 */ #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 * MIGRATE_SYNC_NO_COPY will block when migrating pages but will not copy pages * with the CPU. Instead, page copy happens outside the migratepage() * callback and is likely using a DMA engine. See migrate_vma() and HMM * (mm/hmm.c) for users of this mode. */ enum migrate_mode { MIGRATE_ASYNC, MIGRATE_SYNC_LIGHT, MIGRATE_SYNC, MIGRATE_SYNC_NO_COPY, }; enum migrate_reason { MR_COMPACTION, MR_MEMORY_FAILURE, MR_MEMORY_HOTPLUG, MR_SYSCALL, /* also applies to cpusets */ MR_MEMPOLICY_MBIND, MR_NUMA_MISPLACED, MR_CONTIG_RANGE, MR_LONGTERM_PIN, MR_DEMOTION, MR_TYPES }; #endif /* MIGRATE_MODE_H_INCLUDED */