Commit f042e707 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

mm: move enum vm_event_item into a standalone header file 



enums are problematic because they cannot be forward-declared:

  akpm2:/home/akpm> cat t.c

  enum foo;

  static inline void bar(enum foo f)
  {
  }
  akpm2:/home/akpm> gcc -c t.c
  t.c:4: error: parameter 1 ('f') has incomplete type

So move the enum's definition into a standalone header file which can be used
wherever its definition is needed.

Cc: Ying Han <yinghan@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a77aea92

include/linux/vm_event_item.h

0 → 100644
+64 −0
Original line number Diff line number Diff line 
#ifndef VM_EVENT_ITEM_H_INCLUDED

#define VM_EVENT_ITEM_H_INCLUDED



#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



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



enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,

		FOR_ALL_ZONES(PGALLOC),

		PGFREE, PGACTIVATE, PGDEACTIVATE,

		PGFAULT, PGMAJFAULT,

		FOR_ALL_ZONES(PGREFILL),

		FOR_ALL_ZONES(PGSTEAL),

		FOR_ALL_ZONES(PGSCAN_KSWAPD),

		FOR_ALL_ZONES(PGSCAN_DIRECT),

#ifdef CONFIG_NUMA

		PGSCAN_ZONE_RECLAIM_FAILED,

#endif

		PGINODESTEAL, SLABS_SCANNED, KSWAPD_STEAL, KSWAPD_INODESTEAL,

		KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY,

		KSWAPD_SKIP_CONGESTION_WAIT,

		PAGEOUTRUN, ALLOCSTALL, PGROTATED,

#ifdef CONFIG_COMPACTION

		COMPACTBLOCKS, COMPACTPAGES, COMPACTPAGEFAILED,

		COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,

#endif

#ifdef CONFIG_HUGETLB_PAGE

		HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_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 */

		UNEVICTABLE_MLOCKFREED,

#ifdef CONFIG_TRANSPARENT_HUGEPAGE

		THP_FAULT_ALLOC,

		THP_FAULT_FALLBACK,

		THP_COLLAPSE_ALLOC,

		THP_COLLAPSE_ALLOC_FAILED,

		THP_SPLIT,

#endif

		NR_VM_EVENT_ITEMS

};



#endif		/* VM_EVENT_ITEM_H_INCLUDED */

include/linux/vmstat.h

+1 −61
Original line number Diff line number Diff line
@@ -5,69 +5,9 @@ 
#include <linux/percpu.h>

#include <linux/mm.h>

#include <linux/mmzone.h>

#include <linux/vm_event_item.h>

#include <asm/atomic.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





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



enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,

		FOR_ALL_ZONES(PGALLOC),

		PGFREE, PGACTIVATE, PGDEACTIVATE,

		PGFAULT, PGMAJFAULT,

		FOR_ALL_ZONES(PGREFILL),

		FOR_ALL_ZONES(PGSTEAL),

		FOR_ALL_ZONES(PGSCAN_KSWAPD),

		FOR_ALL_ZONES(PGSCAN_DIRECT),

#ifdef CONFIG_NUMA

		PGSCAN_ZONE_RECLAIM_FAILED,

#endif

		PGINODESTEAL, SLABS_SCANNED, KSWAPD_STEAL, KSWAPD_INODESTEAL,

		KSWAPD_LOW_WMARK_HIT_QUICKLY, KSWAPD_HIGH_WMARK_HIT_QUICKLY,

		KSWAPD_SKIP_CONGESTION_WAIT,

		PAGEOUTRUN, ALLOCSTALL, PGROTATED,

#ifdef CONFIG_COMPACTION

		COMPACTBLOCKS, COMPACTPAGES, COMPACTPAGEFAILED,

		COMPACTSTALL, COMPACTFAIL, COMPACTSUCCESS,

#endif

#ifdef CONFIG_HUGETLB_PAGE

		HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_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 */

		UNEVICTABLE_MLOCKFREED,

#ifdef CONFIG_TRANSPARENT_HUGEPAGE

		THP_FAULT_ALLOC,

		THP_FAULT_FALLBACK,

		THP_COLLAPSE_ALLOC,

		THP_COLLAPSE_ALLOC_FAILED,

		THP_SPLIT,

#endif

		NR_VM_EVENT_ITEMS

};



extern int sysctl_stat_interval;



#ifdef CONFIG_VM_EVENT_COUNTERS

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