vmscan.c File Reference

#include <linux/mm.h>
#include <linux/module.h>
#include <linux/gfp.h>
#include <linux/kernel_stat.h>
#include <linux/swap.h>
#include <linux/pagemap.h>
#include <linux/init.h>
#include <linux/highmem.h>
#include <linux/vmstat.h>
#include <linux/file.h>
#include <linux/writeback.h>
#include <linux/blkdev.h>
#include <linux/buffer_head.h>
#include <linux/mm_inline.h>
#include <linux/backing-dev.h>
#include <linux/rmap.h>
#include <linux/topology.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/compaction.h>
#include <linux/notifier.h>
#include <linux/rwsem.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/memcontrol.h>
#include <linux/delayacct.h>
#include <linux/sysctl.h>
#include <linux/oom.h>
#include <linux/prefetch.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
#include <linux/swapops.h>
#include "internal.h"
#include <trace/events/vmscan.h>

Go to the source code of this file.

Data Structures
struct	scan_control

Macros
#define	CREATE_TRACE_POINTS
#define	lru_to_page(_head)   (list_entry((_head)->prev, struct page, lru))
#define	prefetch_prev_lru_page(_page, _base, _field)   do { } while (0)
#define	prefetchw_prev_lru_page(_page, _base, _field)   do { } while (0)
#define	SHRINK_BATCH   128

Enumerations
enum	pageout_t { PAGE_KEEP, PAGE_ACTIVATE, PAGE_SUCCESS, PAGE_CLEAN }
enum	page_references { PAGEREF_RECLAIM, PAGEREF_RECLAIM_CLEAN, PAGEREF_KEEP, PAGEREF_ACTIVATE }

Functions
void	register_shrinker (struct shrinker *shrinker)
	EXPORT_SYMBOL (register_shrinker)
void	unregister_shrinker (struct shrinker *shrinker)
	EXPORT_SYMBOL (unregister_shrinker)
unsigned long	shrink_slab (struct shrink_control *shrink, unsigned long nr_pages_scanned, unsigned long lru_pages)
int	remove_mapping (struct address_space *mapping, struct page *page)
void	putback_lru_page (struct page *page)
unsigned long	reclaim_clean_pages_from_list (struct zone *zone, struct list_head *page_list)
int	__isolate_lru_page (struct page *page, isolate_mode_t mode)
int	isolate_lru_page (struct page *page)
unsigned long	try_to_free_pages (struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *nodemask)
void	wakeup_kswapd (struct zone *zone, int order, enum zone_type classzone_idx)
unsigned long	global_reclaimable_pages (void)
unsigned long	zone_reclaimable_pages (struct zone *zone)
int	kswapd_run (int nid)
void	kswapd_stop (int nid)
	module_init (kswapd_init)
int	scan_unevictable_handler (struct ctl_table *table, int write, void __user *buffer, size_t *length, loff_t *ppos)

Variables
int	vm_swappiness = 60
long	vm_total_pages
unsigned long	scan_unevictable_pages

Macro Definition Documentation

#define CREATE_TRACE_POINTS

Definition at line 53 of file vmscan.c.

#define lru_to_page

(

_head

)

(list_entry((_head)->prev, struct page, lru))

Definition at line 97 of file vmscan.c.

#define prefetch_prev_lru_page	(		_page,
			_base,
			_field
	)		do { } while (0)

Definition at line 110 of file vmscan.c.

#define prefetchw_prev_lru_page	(		_page,
			_base,
			_field
	)		do { } while (0)

Definition at line 124 of file vmscan.c.

#define SHRINK_BATCH   128

Definition at line 187 of file vmscan.c.

Enumeration Type Documentation

enum page_references

Enumerator:

PAGEREF_RECLAIM
PAGEREF_RECLAIM_CLEAN
PAGEREF_KEEP
PAGEREF_ACTIVATE

Definition at line 609 of file vmscan.c.

enum pageout_t

Enumerator:

PAGE_KEEP
PAGE_ACTIVATE
PAGE_SUCCESS
PAGE_CLEAN

Definition at line 362 of file vmscan.c.

Function Documentation

int __isolate_lru_page	(	struct page *	page,
		isolate_mode_t	mode
	)

Definition at line 1004 of file vmscan.c.

EXPORT_SYMBOL

(

register_shrinker

)

EXPORT_SYMBOL

(

unregister_shrinker

)

unsigned long global_reclaimable_pages

(

void

)

Definition at line 3040 of file vmscan.c.

int isolate_lru_page

(

struct page *

page

)

Definition at line 1155 of file vmscan.c.

int kswapd_run

(

int

nid

)

Definition at line 3140 of file vmscan.c.

void kswapd_stop

(

int

nid

)

Definition at line 3163 of file vmscan.c.

module_init

(

kswapd_init

)

Definition at line 3184 of file vmscan.c.

void putback_lru_page

(

struct page *

page

)

Definition at line 545 of file vmscan.c.

unsigned long reclaim_clean_pages_from_list	(	struct zone *	zone,
		struct list_head *	page_list
	)

Definition at line 967 of file vmscan.c.

void register_shrinker

(

struct shrinker *

shrinker

)

Definition at line 159 of file vmscan.c.

int remove_mapping	(	struct address_space *	mapping,
		struct page *	page
	)

Definition at line 522 of file vmscan.c.

int scan_unevictable_handler	(	struct ctl_table *	table,
		int	write,
		void __user *	buffer,
		size_t *	length,
		loff_t *	ppos
	)

Definition at line 3484 of file vmscan.c.

unsigned long shrink_slab	(	struct shrink_control *	shrink,
		unsigned long	nr_pages_scanned,
		unsigned long	lru_pages
	)

Definition at line 207 of file vmscan.c.

unsigned long try_to_free_pages	(	struct zonelist *	zonelist,
		int	order,
		gfp_t	gfp_mask,
		nodemask_t *	nodemask
	)

Definition at line 2275 of file vmscan.c.

void unregister_shrinker

(

struct shrinker *

shrinker

)

Definition at line 171 of file vmscan.c.

void wakeup_kswapd	(	struct zone *	zone,
		int	order,
		enum zone_type	classzone_idx
	)

Definition at line 3010 of file vmscan.c.

unsigned long zone_reclaimable_pages

(

struct zone *

zone

)

Definition at line 3054 of file vmscan.c.

Variable Documentation

unsigned long scan_unevictable_pages

Definition at line 3482 of file vmscan.c.

int vm_swappiness = 60

Definition at line 130 of file vmscan.c.

long vm_total_pages

Definition at line 131 of file vmscan.c.