include/linux/vm_event_item.h

Source file repositories/reference/linux-study-clean/include/linux/vm_event_item.h

File Facts

System
Linux kernel
Corpus path
include/linux/vm_event_item.h
Extension
.h
Size
4342 bytes
Lines
189
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef VM_EVENT_ITEM_H_INCLUDED
#define VM_EVENT_ITEM_H_INCLUDED

#include <linux/thread_info.h>

#ifdef CONFIG_ZONE_DMA
#define DMA_ZONE(xx) xx##_DMA,
#else
#define DMA_ZONE(xx)
#endif

#ifdef CONFIG_ZONE_DMA32
#define DMA32_ZONE(xx) xx##_DMA32,
#else
#define DMA32_ZONE(xx)
#endif

#ifdef CONFIG_HIGHMEM
#define HIGHMEM_ZONE(xx) xx##_HIGH,
#else
#define HIGHMEM_ZONE(xx)
#endif

#ifdef CONFIG_ZONE_DEVICE
#define DEVICE_ZONE(xx) xx##_DEVICE,
#else
#define DEVICE_ZONE(xx)
#endif

#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, \
	HIGHMEM_ZONE(xx) xx##_MOVABLE, DEVICE_ZONE(xx)

enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
		FOR_ALL_ZONES(PGALLOC)
		FOR_ALL_ZONES(ALLOCSTALL)
		FOR_ALL_ZONES(PGSCAN_SKIP)
		PGFREE, PGACTIVATE, PGDEACTIVATE, PGLAZYFREE,
		PGFAULT, PGMAJFAULT,
		PGLAZYFREED,
		PGREUSE,
		PGSCAN_DIRECT_THROTTLE,
#ifdef CONFIG_NUMA
		PGSCAN_ZONE_RECLAIM_SUCCESS,
		PGSCAN_ZONE_RECLAIM_FAILED,
#endif
		PGINODESTEAL, SLABS_SCANNED, KSWAPD_INODESTEAL,
		KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY,
		PAGEOUTRUN, PGROTATED,
		DROP_PAGECACHE, DROP_SLAB,
		OOM_KILL,
#ifdef CONFIG_NUMA_BALANCING
		NUMA_PTE_UPDATES,
		NUMA_HUGE_PTE_UPDATES,
		NUMA_HINT_FAULTS,
		NUMA_HINT_FAULTS_LOCAL,
		NUMA_PAGE_MIGRATE,
#endif
#ifdef CONFIG_MIGRATION
		PGMIGRATE_SUCCESS, PGMIGRATE_FAIL,
		THP_MIGRATION_SUCCESS,
		THP_MIGRATION_FAIL,
		THP_MIGRATION_SPLIT,
#endif
#ifdef CONFIG_COMPACTION
		COMPACTMIGRATE_SCANNED, COMPACTFREE_SCANNED,
		COMPACTISOLATED,
		COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,
		KCOMPACTD_WAKE,
		KCOMPACTD_MIGRATE_SCANNED, KCOMPACTD_FREE_SCANNED,
#endif
#ifdef CONFIG_HUGETLB_PAGE
		HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL,
#endif
#ifdef CONFIG_CMA
		CMA_ALLOC_SUCCESS,
		CMA_ALLOC_FAIL,
#endif
		UNEVICTABLE_PGCULLED,	/* culled to noreclaim list */
		UNEVICTABLE_PGSCANNED,	/* scanned for reclaimability */
		UNEVICTABLE_PGRESCUED,	/* rescued from noreclaim list */
		UNEVICTABLE_PGMLOCKED,
		UNEVICTABLE_PGMUNLOCKED,
		UNEVICTABLE_PGCLEARED,	/* on COW, page truncate */
		UNEVICTABLE_PGSTRANDED,	/* unable to isolate on unlock */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
		THP_FAULT_ALLOC,
		THP_FAULT_FALLBACK,
		THP_FAULT_FALLBACK_CHARGE,
		THP_COLLAPSE_ALLOC,
		THP_COLLAPSE_ALLOC_FAILED,

Annotation

Implementation Notes