cregit-Linux how code gets into the kernel

Release 4.12 include/linux/memcontrol.h

Directory: include/linux
/* memcontrol.h - Memory Controller
 *
 * Copyright IBM Corporation, 2007
 * Author Balbir Singh <balbir@linux.vnet.ibm.com>
 *
 * Copyright 2007 OpenVZ SWsoft Inc
 * Author: Pavel Emelianov <xemul@openvz.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef _LINUX_MEMCONTROL_H

#define _LINUX_MEMCONTROL_H
#include <linux/cgroup.h>
#include <linux/vm_event_item.h>
#include <linux/hardirq.h>
#include <linux/jump_label.h>
#include <linux/page_counter.h>
#include <linux/vmpressure.h>
#include <linux/eventfd.h>
#include <linux/mmzone.h>
#include <linux/writeback.h>
#include <linux/page-flags.h>

struct mem_cgroup;
struct page;
struct mm_struct;
struct kmem_cache;

/* Cgroup-specific page state, on top of universal node page state */

enum memcg_stat_item {
	
MEMCG_CACHE = NR_VM_NODE_STAT_ITEMS,
	
MEMCG_RSS,
	
MEMCG_RSS_HUGE,
	
MEMCG_SWAP,
	
MEMCG_SOCK,
	/* XXX: why are these zone and not node counters? */
	
MEMCG_KERNEL_STACK_KB,
	
MEMCG_SLAB_RECLAIMABLE,
	
MEMCG_SLAB_UNRECLAIMABLE,
	
MEMCG_NR_STAT,
};

/* Cgroup-specific events, on top of universal VM events */

enum memcg_event_item {
	
MEMCG_LOW = NR_VM_EVENT_ITEMS,
	
MEMCG_HIGH,
	
MEMCG_MAX,
	
MEMCG_OOM,
	
MEMCG_NR_EVENTS,
};


struct mem_cgroup_reclaim_cookie {
	
pg_data_t *pgdat;
	
int priority;
	
unsigned int generation;
};

#ifdef CONFIG_MEMCG


#define MEM_CGROUP_ID_SHIFT	16

#define MEM_CGROUP_ID_MAX	USHRT_MAX


struct mem_cgroup_id {
	
int id;
	
atomic_t ref;
};

/*
 * Per memcg event counter is incremented at every pagein/pageout. With THP,
 * it will be incremated by the number of pages. This counter is used for
 * for trigger some periodic events. This is straightforward and better
 * than using jiffies etc. to handle periodic memcg event.
 */

enum mem_cgroup_events_target {
	
MEM_CGROUP_TARGET_THRESH,
	
MEM_CGROUP_TARGET_SOFTLIMIT,
	
MEM_CGROUP_TARGET_NUMAINFO,
	
MEM_CGROUP_NTARGETS,
};


struct mem_cgroup_stat_cpu {
	
long count[MEMCG_NR_STAT];
	
unsigned long events[MEMCG_NR_EVENTS];
	
unsigned long nr_page_events;
	
unsigned long targets[MEM_CGROUP_NTARGETS];
};


struct mem_cgroup_reclaim_iter {
	
struct mem_cgroup *position;
	/* scan generation, increased every round-trip */
	
unsigned int generation;
};

/*
 * per-zone information in memory controller.
 */

struct mem_cgroup_per_node {
	
struct lruvec		lruvec;
	
unsigned long		lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS];

	
struct mem_cgroup_reclaim_iter	iter[DEF_PRIORITY + 1];

	
struct rb_node		tree_node;	/* RB tree node */
	
unsigned long		usage_in_excess;/* Set to the value by which */
						/* the soft limit is exceeded*/
	
bool			on_tree;
	
struct mem_cgroup	*memcg;		/* Back pointer, we cannot */
						/* use container_of        */
};


struct mem_cgroup_threshold {
	
struct eventfd_ctx *eventfd;
	
unsigned long threshold;
};

/* For threshold */

struct mem_cgroup_threshold_ary {
	/* An array index points to threshold just below or equal to usage. */
	
int current_threshold;
	/* Size of entries[] */
	
unsigned int size;
	/* Array of thresholds */
	
struct mem_cgroup_threshold entries[0];
};


struct mem_cgroup_thresholds {
	/* Primary thresholds array */
	
struct mem_cgroup_threshold_ary *primary;
	/*
         * Spare threshold array.
         * This is needed to make mem_cgroup_unregister_event() "never fail".
         * It must be able to store at least primary->size - 1 entries.
         */
	
struct mem_cgroup_threshold_ary *spare;
};


enum memcg_kmem_state {
	
KMEM_NONE,
	
KMEM_ALLOCATED,
	
KMEM_ONLINE,
};

/*
 * The memory controller data structure. The memory controller controls both
 * page cache and RSS per cgroup. We would eventually like to provide
 * statistics based on the statistics developed by Rik Van Riel for clock-pro,
 * to help the administrator determine what knobs to tune.
 */

struct mem_cgroup {
	
struct cgroup_subsys_state css;

	/* Private memcg ID. Used to ID objects that outlive the cgroup */
	
struct mem_cgroup_id id;

	/* Accounted resources */
	
struct page_counter memory;
	
struct page_counter swap;

	/* Legacy consumer-oriented counters */
	
struct page_counter memsw;
	
struct page_counter kmem;
	
struct page_counter tcpmem;

	/* Normal memory consumption range */
	
unsigned long low;
	
unsigned long high;

	/* Range enforcement for interrupt charges */
	
struct work_struct high_work;

	
unsigned long soft_limit;

	/* vmpressure notifications */
	
struct vmpressure vmpressure;

	/*
         * Should the accounting and control be hierarchical, per subtree?
         */
	
bool use_hierarchy;

	/* protected by memcg_oom_lock */
	
bool		oom_lock;
	
int		under_oom;

	
int	swappiness;
	/* OOM-Killer disable */
	
int		oom_kill_disable;

	/* handle for "memory.events" */
	
struct cgroup_file events_file;

	/* protect arrays of thresholds */
	
struct mutex thresholds_lock;

	/* thresholds for memory usage. RCU-protected */
	
struct mem_cgroup_thresholds thresholds;

	/* thresholds for mem+swap usage. RCU-protected */
	
struct mem_cgroup_thresholds memsw_thresholds;

	/* For oom notifier event fd */
	
struct list_head oom_notify;

	/*
         * Should we move charges of a task when a task is moved into this
         * mem_cgroup ? And what type of charges should we move ?
         */
	
unsigned long move_charge_at_immigrate;
	/*
         * set > 0 if pages under this cgroup are moving to other cgroup.
         */
	
atomic_t		moving_account;
	/* taken only while moving_account > 0 */
	
spinlock_t		move_lock;
	
struct task_struct	*move_lock_task;
	
unsigned long		move_lock_flags;
	/*
         * percpu counter.
         */
	
struct mem_cgroup_stat_cpu __percpu *stat;

	
unsigned long		socket_pressure;

	/* Legacy tcp memory accounting */
	
bool			tcpmem_active;
	
int			tcpmem_pressure;

#ifndef CONFIG_SLOB
        /* Index in the kmem_cache->memcg_params.memcg_caches array */
	
int kmemcg_id;
	
enum memcg_kmem_state kmem_state;
	
struct list_head kmem_caches;
#endif

	
int last_scanned_node;
#if MAX_NUMNODES > 1
	
nodemask_t	scan_nodes;
	
atomic_t	numainfo_events;
	
atomic_t	numainfo_updating;
#endif

#ifdef CONFIG_CGROUP_WRITEBACK
	
struct list_head cgwb_list;
	
struct wb_domain cgwb_domain;
#endif

	/* List of events which userspace want to receive */
	
struct list_head event_list;
	
spinlock_t event_list_lock;

	
struct mem_cgroup_per_node *nodeinfo[0];
	/* WARNING: nodeinfo must be the last member here */
};

extern struct mem_cgroup *root_mem_cgroup;


static inline bool mem_cgroup_disabled(void) { return !cgroup_subsys_enabled(memory_cgrp_subsys); }

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Johannes Weiner16100.00%1100.00%
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static inline void mem_cgroup_event(struct mem_cgroup *memcg, enum memcg_event_item event) { this_cpu_inc(memcg->stat->events[event]); cgroup_file_notify(&memcg->events_file); }

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Michal Hocko2363.89%125.00%
Tejun Heo822.22%125.00%
Johannes Weiner513.89%250.00%
Total36100.00%4100.00%

bool mem_cgroup_low(struct mem_cgroup *root, struct mem_cgroup *memcg); int mem_cgroup_try_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask, struct mem_cgroup **memcgp, bool compound); void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg, bool lrucare, bool compound); void mem_cgroup_cancel_charge(struct page *page, struct mem_cgroup *memcg, bool compound); void mem_cgroup_uncharge(struct page *page); void mem_cgroup_uncharge_list(struct list_head *page_list); void mem_cgroup_migrate(struct page *oldpage, struct page *newpage);
static struct mem_cgroup_per_node * mem_cgroup_nodeinfo(struct mem_cgroup *memcg, int nid) { return memcg->nodeinfo[nid]; }

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Johannes Weiner2083.33%150.00%
Mel Gorman416.67%150.00%
Total24100.00%2100.00%

/** * mem_cgroup_lruvec - get the lru list vector for a node or a memcg zone * @node: node of the wanted lruvec * @memcg: memcg of the wanted lruvec * * Returns the lru list vector holding pages for a given @node or a given * @memcg and @zone. This can be the node lruvec, if the memory controller * is disabled. */
static inline struct lruvec *mem_cgroup_lruvec(struct pglist_data *pgdat, struct mem_cgroup *memcg) { struct mem_cgroup_per_node *mz; struct lruvec *lruvec; if (mem_cgroup_disabled()) { lruvec = node_lruvec(pgdat); goto out; } mz = mem_cgroup_nodeinfo(memcg, pgdat->node_id); lruvec = &mz->lruvec; out: /* * Since a node can be onlined after the mem_cgroup was created, * we have to be prepared to initialize lruvec->pgdat here; * and if offlined then reonlined, we need to reinitialize it. */ if (unlikely(lruvec->pgdat != pgdat)) lruvec->pgdat = pgdat; return lruvec; }

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Johannes Weiner6574.71%233.33%
Mel Gorman2022.99%350.00%
Balbir Singh22.30%116.67%
Total87100.00%6100.00%

struct lruvec *mem_cgroup_page_lruvec(struct page *, struct pglist_data *); bool task_in_mem_cgroup(struct task_struct *task, struct mem_cgroup *memcg); struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
static inline struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css){ return css ? container_of(css, struct mem_cgroup, css) : NULL; }

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Michal Hocko1965.52%133.33%
Glauber de Oliveira Costa724.14%133.33%
Tejun Heo310.34%133.33%
Total29100.00%3100.00%

#define mem_cgroup_from_counter(counter, member) \ container_of(counter, struct mem_cgroup, member) struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *, struct mem_cgroup *, struct mem_cgroup_reclaim_cookie *); void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *); int mem_cgroup_scan_tasks(struct mem_cgroup *, int (*)(struct task_struct *, void *), void *);
static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg) { if (mem_cgroup_disabled()) return 0; return memcg->id.id; }

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Johannes Weiner28100.00%2100.00%
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struct mem_cgroup *mem_cgroup_from_id(unsigned short id); /** * parent_mem_cgroup - find the accounting parent of a memcg * @memcg: memcg whose parent to find * * Returns the parent memcg, or NULL if this is the root or the memory * controller is in legacy no-hierarchy mode. */
static inline struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg) { if (!memcg->memory.parent) return NULL; return mem_cgroup_from_counter(memcg->memory.parent, memory); }

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Johannes Weiner38100.00%1100.00%
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static inline bool mem_cgroup_is_descendant(struct mem_cgroup *memcg, struct mem_cgroup *root) { if (root == memcg) return true; if (!root->use_hierarchy) return false; return cgroup_is_descendant(memcg->css.cgroup, root->css.cgroup); }

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Michal Hocko52100.00%1100.00%
Total52100.00%1100.00%


static inline bool mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *memcg) { struct mem_cgroup *task_memcg; bool match = false; rcu_read_lock(); task_memcg = mem_cgroup_from_task(rcu_dereference(mm->owner)); if (task_memcg) match = mem_cgroup_is_descendant(task_memcg, memcg); rcu_read_unlock(); return match; }

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Lai Jiangshan3049.18%111.11%
Johannes Weiner2337.70%444.44%
Kamezawa Hiroyuki34.92%111.11%
Balbir Singh34.92%111.11%
Hugh Dickins11.64%111.11%
David Rientjes11.64%111.11%
Total61100.00%9100.00%

struct cgroup_subsys_state *mem_cgroup_css_from_page(struct page *page); ino_t page_cgroup_ino(struct page *page);
static inline bool mem_cgroup_online(struct mem_cgroup *memcg) { if (mem_cgroup_disabled()) return true; return !!(memcg->css.flags & CSS_ONLINE); }

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Vladimir Davydov33100.00%1100.00%
Total33100.00%1100.00%

/* * For memory reclaim. */ int mem_cgroup_select_victim_node(struct mem_cgroup *memcg); void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru, int zid, int nr_pages); unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg, int nid, unsigned int lru_mask);
static inline unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru) { struct mem_cgroup_per_node *mz; unsigned long nr_pages = 0; int zid; mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec); for (zid = 0; zid < MAX_NR_ZONES; zid++) nr_pages += mz->lru_zone_size[zid][lru]; return nr_pages; }

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Michal Hocko6287.32%233.33%
Motohiro Kosaki57.04%116.67%
Konstantin Khlebnikov22.82%116.67%
Mel Gorman11.41%116.67%
Hugh Dickins11.41%116.67%
Total71100.00%6100.00%


static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) { struct mem_cgroup_per_node *mz; mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec); return mz->lru_zone_size[zone_idx][lru]; }

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Michal Hocko4797.92%266.67%
Mel Gorman12.08%133.33%
Total48100.00%3100.00%

void mem_cgroup_handle_over_high(void); unsigned long mem_cgroup_get_limit(struct mem_cgroup *memcg); void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p);
static inline void mem_cgroup_oom_enable(void) { WARN_ON(current->memcg_may_oom); current->memcg_may_oom = 1; }

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Johannes Weiner2090.91%266.67%
Tejun Heo29.09%133.33%
Total22100.00%3100.00%


static inline void mem_cgroup_oom_disable(void) { WARN_ON(!current->memcg_may_oom); current->memcg_may_oom = 0; }

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Johannes Weiner2191.30%266.67%
Tejun Heo28.70%133.33%
Total23100.00%3100.00%


static inline bool task_in_memcg_oom(struct task_struct *p) { return p->memcg_in_oom; }

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Johannes Weiner1694.12%150.00%
Tejun Heo15.88%150.00%
Total17100.00%2100.00%

bool mem_cgroup_oom_synchronize(bool wait); #ifdef CONFIG_MEMCG_SWAP extern int do_swap_account; #endif void lock_page_memcg(struct page *page); void unlock_page_memcg(struct page *page);
static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { long val = 0; int cpu; for_each_possible_cpu(cpu) val += per_cpu(memcg->stat->count[idx], cpu); if (val < 0) val = 0; return val; }

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Johannes Weiner58100.00%3100.00%
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static inline void mod_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx, int val) { if (!mem_cgroup_disabled()) this_cpu_add(memcg->stat->count[idx], val); }

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Johannes Weiner2358.97%457.14%
Michal Hocko1128.21%114.29%
Balbir Singh410.26%114.29%
Kamezawa Hiroyuki12.56%114.29%
Total39100.00%7100.00%


static inline void inc_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { mod_memcg_state(memcg, idx, 1); }

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Johannes Weiner25100.00%3100.00%
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static inline void dec_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { mod_memcg_state(memcg, idx, -1); }

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Johannes Weiner2492.31%375.00%
Michal Hocko27.69%125.00%
Total26100.00%4100.00%

/** * mod_memcg_page_state - update page state statistics * @page: the page * @idx: page state item to account * @val: number of pages (positive or negative) * * The @page must be locked or the caller must use lock_page_memcg() * to prevent double accounting when the page is concurrently being * moved to another memcg: * * lock_page(page) or lock_page_memcg(page) * if (TestClearPageState(page)) * mod_memcg_page_state(page, state, -1); * unlock_page(page) or unlock_page_memcg(page) * * Kernel pages are an exception to this, since they'll never move. */
static inline void mod_memcg_page_state(struct page *page, enum memcg_stat_item idx, int val) { if (page->mem_cgroup) mod_memcg_state(page->mem_cgroup, idx, val); }

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Johannes Weiner2672.22%480.00%
Michal Hocko1027.78%120.00%
Total36100.00%5100.00%


static inline void inc_memcg_page_state(struct page *page, enum memcg_stat_item idx) { mod_memcg_page_state(page, idx, 1); }

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Greg Thelen1976.00%125.00%
Johannes Weiner624.00%375.00%
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static inline void dec_memcg_page_state(struct page *page, enum memcg_stat_item idx) { mod_memcg_page_state(page, idx, -1); }

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Greg Thelen2076.92%125.00%
Johannes Weiner623.08%375.00%
Total26100.00%4100.00%

unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned);
static inline void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx) { struct mem_cgroup *memcg; if (mem_cgroup_disabled()) return; rcu_read_lock(); memcg = mem_cgroup_from_task(rcu_dereference(mm->owner)); if (likely(memcg)) this_cpu_inc(memcg->stat->events[idx]); rcu_read_unlock(); }

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Michal Hocko3859.38%133.33%
David Rientjes2437.50%133.33%
Johannes Weiner23.12%133.33%
Total64100.00%3100.00%

#ifdef CONFIG_TRANSPARENT_HUGEPAGE void mem_cgroup_split_huge_fixup(struct page *head); #endif #else /* CONFIG_MEMCG */ #define MEM_CGROUP_ID_SHIFT 0 #define MEM_CGROUP_ID_MAX 0 struct mem_cgroup;
static inline bool mem_cgroup_disabled(void) { return true; }

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Johannes Weiner12100.00%1100.00%
Total12100.00%1100.00%


static inline void mem_cgroup_event(struct mem_cgroup *memcg, enum memcg_event_item event) { }

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Johannes Weiner15100.00%3100.00%
Total15100.00%3100.00%


static inline bool mem_cgroup_low(struct mem_cgroup *root, struct mem_cgroup *memcg) { return false; }

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Johannes Weiner20100.00%1100.00%
Total20100.00%1100.00%


static inline int mem_cgroup_try_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask, struct mem_cgroup **memcgp, bool compound) { *memcgp = NULL; return 0; }

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Hugh Dickins1129.73%114.29%
Kamezawa Hiroyuki1129.73%228.57%
Johannes Weiner718.92%228.57%
Balbir Singh513.51%114.29%
Kirill A. Shutemov38.11%114.29%
Total37100.00%7100.00%


static inline void mem_cgroup_commit_charge(struct page *page, struct mem_cgroup *memcg, bool lrucare, bool compound) { }

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Kamezawa Hiroyuki1463.64%125.00%
Johannes Weiner522.73%250.00%
Kirill A. Shutemov313.64%125.00%
Total22100.00%4100.00%


static inline void mem_cgroup_cancel_charge(struct page *page, struct mem_cgroup *memcg, bool compound) { }

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Kamezawa Hiroyuki947.37%125.00%
Johannes Weiner736.84%250.00%
Kirill A. Shutemov315.79%125.00%
Total19100.00%4100.00%


static inline void mem_cgroup_uncharge(struct page *page) { }

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Kamezawa Hiroyuki654.55%150.00%
Johannes Weiner545.45%150.00%
Total11100.00%2100.00%


static inline void mem_cgroup_uncharge_list(struct list_head *page_list) { }

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Johannes Weiner545.45%133.33%
Kamezawa Hiroyuki436.36%133.33%
Balbir Singh218.18%133.33%
Total11100.00%3100.00%


static inline void mem_cgroup_migrate(struct page *old, struct page *new) { }

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Kamezawa Hiroyuki1062.50%125.00%
Johannes Weiner425.00%250.00%
Hugh Dickins212.50%125.00%
Total16100.00%4100.00%


static inline struct lruvec *mem_cgroup_lruvec(struct pglist_data *pgdat, struct mem_cgroup *memcg) { return node_lruvec(pgdat); }

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Mel Gorman1040.00%250.00%
Kamezawa Hiroyuki936.00%125.00%
Johannes Weiner624.00%125.00%
Total25100.00%4100.00%


static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page, struct pglist_data *pgdat) { return &pgdat->lruvec; }

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Johannes Weiner1144.00%116.67%
Kamezawa Hiroyuki624.00%116.67%
Mel Gorman312.00%116.67%
Balbir Singh28.00%116.67%
MinChan Kim28.00%116.67%
Hugh Dickins14.00%116.67%
Total25100.00%6100.00%


static inline bool mm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *memcg) { return true; }

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Balbir Singh1260.00%120.00%
David Rientjes420.00%120.00%
Johannes Weiner210.00%120.00%
Raghavendra K T15.00%120.00%
Hugh Dickins15.00%120.00%
Total20100.00%5100.00%


static inline bool task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *memcg) { return true; }

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David Rientjes2095.24%266.67%
Raghavendra K T14.76%133.33%
Total21100.00%3100.00%


static inline struct mem_cgroup * mem_cgroup_iter(struct mem_cgroup *root, struct mem_cgroup *prev, struct mem_cgroup_reclaim_cookie *reclaim) { return NULL; }

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Johannes Weiner2488.89%150.00%
Fengguang Wu311.11%150.00%
Total27100.00%2100.00%


static inline void mem_cgroup_iter_break(struct mem_cgroup *root, struct mem_cgroup *prev) { }

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Johannes Weiner16100.00%1100.00%
Total16100.00%1100.00%


static inline int mem_cgroup_scan_tasks(struct mem_cgroup *memcg, int (*fn)(struct task_struct *, void *), void *arg) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Vladimir Davydov33100.00%1100.00%
Total33100.00%1100.00%


static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner1062.50%150.00%
Hirokazu Takahashi637.50%150.00%
Total16100.00%2100.00%


static inline struct mem_cgroup *mem_cgroup_from_id(unsigned short id) { WARN_ON_ONCE(id); /* XXX: This should always return root_mem_cgroup */ return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner2090.91%150.00%
Hirokazu Takahashi29.09%150.00%
Total22100.00%2100.00%


static inline bool mem_cgroup_online(struct mem_cgroup *memcg) { return true; }

Contributors

PersonTokensPropCommitsCommitProp
Rik Van Riel426.67%116.67%
Vladimir Davydov426.67%233.33%
Motohiro Kosaki426.67%116.67%
Yaowei Bai213.33%116.67%
Johannes Weiner16.67%116.67%
Total15100.00%6100.00%


static inline unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Motohiro Kosaki1155.00%120.00%
Konstantin Khlebnikov525.00%120.00%
Rik Van Riel210.00%120.00%
Kamezawa Hiroyuki15.00%120.00%
Hugh Dickins15.00%120.00%
Total20100.00%5100.00%


static inline unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Michal Hocko2191.30%150.00%
Motohiro Kosaki28.70%150.00%
Total23100.00%2100.00%


static inline unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg, int nid, unsigned int lru_mask) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Vladimir Davydov2191.30%150.00%
Michal Hocko28.70%150.00%
Total23100.00%2100.00%


static inline unsigned long mem_cgroup_get_limit(struct mem_cgroup *memcg) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Vladimir Davydov16100.00%1100.00%
Total16100.00%1100.00%


static inline void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p) { }

Contributors

PersonTokensPropCommitsCommitProp
Balbir Singh1487.50%150.00%
Vladimir Davydov212.50%150.00%
Total16100.00%2100.00%


static inline void lock_page_memcg(struct page *page) { }

Contributors

PersonTokensPropCommitsCommitProp
Kamezawa Hiroyuki872.73%133.33%
Johannes Weiner327.27%266.67%
Total11100.00%3100.00%


static inline void unlock_page_memcg(struct page *page) { }

Contributors

PersonTokensPropCommitsCommitProp
Kamezawa Hiroyuki872.73%133.33%
Johannes Weiner327.27%266.67%
Total11100.00%3100.00%


static inline void mem_cgroup_handle_over_high(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Tejun Heo8100.00%1100.00%
Total8100.00%1100.00%


static inline void mem_cgroup_oom_enable(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner8100.00%2100.00%
Total8100.00%2100.00%


static inline void mem_cgroup_oom_disable(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner8100.00%2100.00%
Total8100.00%2100.00%


static inline bool task_in_memcg_oom(struct task_struct *p) { return false; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner15100.00%1100.00%
Total15100.00%1100.00%


static inline bool mem_cgroup_oom_synchronize(bool wait) { return false; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner13100.00%2100.00%
Total13100.00%2100.00%


static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner20100.00%2100.00%
Total20100.00%2100.00%


static inline void mod_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx, int nr) { }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner18100.00%3100.00%
Total18100.00%3100.00%


static inline void inc_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner15100.00%3100.00%
Total15100.00%3100.00%


static inline void dec_memcg_state(struct mem_cgroup *memcg, enum memcg_stat_item idx) { }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner15100.00%3100.00%
Total15100.00%3100.00%


static inline void mod_memcg_page_state(struct page *page, enum memcg_stat_item idx, int nr) { }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Weiner18100.00%3100.00%
Total18100.00%3100.00%


static inline void inc_memcg_page_state(struct page *page, enum memcg_stat_item idx) { }

Contributors

PersonTokensPropCommitsCommitProp
Balbir Singh746.67%120.00%
Johannes Weiner426.67%360.00%
Greg Thelen426.67%120.00%
Total15100.00%5100.00%


static inline void dec_memcg_page_state(struct page *page, enum memcg_stat_item idx) { }

Contributors

PersonTokensPropCommitsCommitProp
Greg Thelen960.00%120.00%
Johannes Weiner426.67%360.00%
Balbir Singh213.33%120.00%
Total15100.00%5100.00%


static inline unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, unsigned long *total_scanned) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Andrew Morton1557.69%125.00%
Balbir Singh830.77%125.00%
Mel Gorman27.69%125.00%
Ying Han13.85%125.00%
Total26100.00%4100.00%


static inline void mem_cgroup_split_huge_fixup(struct page *head) { }

Contributors

PersonTokensPropCommitsCommitProp
Kamezawa Hiroyuki1090.91%150.00%
Ying Han19.09%150.00%
Total11100.00%2100.00%


static inline void mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx) { }

Contributors

PersonTokensPropCommitsCommitProp
Ying Han1493.33%150.00%
Kamezawa Hiroyuki16.67%150.00%
Total15100.00%2100.00%

#endif /* CONFIG_MEMCG */ #ifdef CONFIG_CGROUP_WRITEBACK struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg); struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb);