MINI Sh3ll

Path : /lib/modules/5.15.0-43-generic/build/include/linux/
File Upload :
Current File : //lib/modules/5.15.0-43-generic/build/include/linux/memcontrol.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/* memcontrol.h - Memory Controller
 *
 * Copyright IBM Corporation, 2007
 * Author Balbir Singh <[email protected]>
 *
 * Copyright 2007 OpenVZ SWsoft Inc
 * Author: Pavel Emelianov <[email protected]>
 */

#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/mm.h>
#include <linux/vmstat.h>
#include <linux/writeback.h>
#include <linux/page-flags.h>

struct mem_cgroup;
struct obj_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_SWAP = NR_VM_NODE_STAT_ITEMS,
	MEMCG_SOCK,
	MEMCG_PERCPU_B,
	MEMCG_NR_STAT,
};

enum memcg_memory_event {
	MEMCG_LOW,
	MEMCG_HIGH,
	MEMCG_MAX,
	MEMCG_OOM,
	MEMCG_OOM_KILL,
	MEMCG_SWAP_HIGH,
	MEMCG_SWAP_MAX,
	MEMCG_SWAP_FAIL,
	MEMCG_NR_MEMORY_EVENTS,
};

struct mem_cgroup_reclaim_cookie {
	pg_data_t *pgdat;
	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;
	refcount_t ref;
};

/*
 * Per memcg event counter is incremented at every pagein/pageout. With THP,
 * it will be incremented by the number of pages. This counter is used
 * to 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_NTARGETS,
};

struct memcg_vmstats_percpu {
	/* Local (CPU and cgroup) page state & events */
	long			state[MEMCG_NR_STAT];
	unsigned long		events[NR_VM_EVENT_ITEMS];

	/* Delta calculation for lockless upward propagation */
	long			state_prev[MEMCG_NR_STAT];
	unsigned long		events_prev[NR_VM_EVENT_ITEMS];

	/* Cgroup1: threshold notifications & softlimit tree updates */
	unsigned long		nr_page_events;
	unsigned long		targets[MEM_CGROUP_NTARGETS];
};

struct memcg_vmstats {
	/* Aggregated (CPU and subtree) page state & events */
	long			state[MEMCG_NR_STAT];
	unsigned long		events[NR_VM_EVENT_ITEMS];

	/* Pending child counts during tree propagation */
	long			state_pending[MEMCG_NR_STAT];
	unsigned long		events_pending[NR_VM_EVENT_ITEMS];
};

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

/*
 * Bitmap and deferred work of shrinker::id corresponding to memcg-aware
 * shrinkers, which have elements charged to this memcg.
 */
struct shrinker_info {
	struct rcu_head rcu;
	atomic_long_t *nr_deferred;
	unsigned long *map;
};

struct lruvec_stats_percpu {
	/* Local (CPU and cgroup) state */
	long state[NR_VM_NODE_STAT_ITEMS];

	/* Delta calculation for lockless upward propagation */
	long state_prev[NR_VM_NODE_STAT_ITEMS];
};

struct lruvec_stats {
	/* Aggregated (CPU and subtree) state */
	long state[NR_VM_NODE_STAT_ITEMS];

	/* Pending child counts during tree propagation */
	long state_pending[NR_VM_NODE_STAT_ITEMS];
};

/*
 * per-node information in memory controller.
 */
struct mem_cgroup_per_node {
	struct lruvec		lruvec;

	struct lruvec_stats_percpu __percpu	*lruvec_stats_percpu;
	struct lruvec_stats			lruvec_stats;

	unsigned long		lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS];

	struct mem_cgroup_reclaim_iter	iter;

	struct shrinker_info __rcu	*shrinker_info;

	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[];
};

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,
};

#if defined(CONFIG_SMP)
struct memcg_padding {
	char x[0];
} ____cacheline_internodealigned_in_smp;
#define MEMCG_PADDING(name)      struct memcg_padding name
#else
#define MEMCG_PADDING(name)
#endif

/*
 * Remember four most recent foreign writebacks with dirty pages in this
 * cgroup.  Inode sharing is expected to be uncommon and, even if we miss
 * one in a given round, we're likely to catch it later if it keeps
 * foreign-dirtying, so a fairly low count should be enough.
 *
 * See mem_cgroup_track_foreign_dirty_slowpath() for details.
 */
#define MEMCG_CGWB_FRN_CNT	4

struct memcg_cgwb_frn {
	u64 bdi_id;			/* bdi->id of the foreign inode */
	int memcg_id;			/* memcg->css.id of foreign inode */
	u64 at;				/* jiffies_64 at the time of dirtying */
	struct wb_completion done;	/* tracks in-flight foreign writebacks */
};

/*
 * Bucket for arbitrarily byte-sized objects charged to a memory
 * cgroup. The bucket can be reparented in one piece when the cgroup
 * is destroyed, without having to round up the individual references
 * of all live memory objects in the wild.
 */
struct obj_cgroup {
	struct percpu_ref refcnt;
	struct mem_cgroup *memcg;
	atomic_t nr_charged_bytes;
	union {
		struct list_head list; /* protected by objcg_lock */
		struct rcu_head rcu;
	};
};

/*
 * 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;		/* Both v1 & v2 */

	union {
		struct page_counter swap;	/* v2 only */
		struct page_counter memsw;	/* v1 only */
	};

	/* Legacy consumer-oriented counters */
	struct page_counter kmem;		/* v1 only */
	struct page_counter tcpmem;		/* v1 only */

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

	unsigned long soft_limit;

	/* vmpressure notifications */
	struct vmpressure vmpressure;

	/*
	 * Should the OOM killer kill all belonging tasks, had it kill one?
	 */
	bool oom_group;

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

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

	/* memory.events and memory.events.local */
	struct cgroup_file events_file;
	struct cgroup_file events_local_file;

	/* handle for "memory.swap.events" */
	struct cgroup_file swap_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;
	/* taken only while moving_account > 0 */
	spinlock_t		move_lock;
	unsigned long		move_lock_flags;

	MEMCG_PADDING(_pad1_);

	/* memory.stat */
	struct memcg_vmstats	vmstats;

	/* memory.events */
	atomic_long_t		memory_events[MEMCG_NR_MEMORY_EVENTS];
	atomic_long_t		memory_events_local[MEMCG_NR_MEMORY_EVENTS];

	unsigned long		socket_pressure;

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

#ifdef CONFIG_MEMCG_KMEM
	int kmemcg_id;
	enum memcg_kmem_state kmem_state;
	struct obj_cgroup __rcu *objcg;
	/* list of inherited objcgs, protected by objcg_lock */
	struct list_head objcg_list;
#endif

	MEMCG_PADDING(_pad2_);

	/*
	 * set > 0 if pages under this cgroup are moving to other cgroup.
	 */
	atomic_t		moving_account;
	struct task_struct	*move_lock_task;

	struct memcg_vmstats_percpu __percpu *vmstats_percpu;

#ifdef CONFIG_CGROUP_WRITEBACK
	struct list_head cgwb_list;
	struct wb_domain cgwb_domain;
	struct memcg_cgwb_frn cgwb_frn[MEMCG_CGWB_FRN_CNT];
#endif

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

#ifdef CONFIG_TRANSPARENT_HUGEPAGE
	struct deferred_split deferred_split_queue;
#endif

	struct mem_cgroup_per_node *nodeinfo[];
};

/*
 * size of first charge trial. "32" comes from vmscan.c's magic value.
 * TODO: maybe necessary to use big numbers in big irons.
 */
#define MEMCG_CHARGE_BATCH 32U

extern struct mem_cgroup *root_mem_cgroup;

enum page_memcg_data_flags {
	/* page->memcg_data is a pointer to an objcgs vector */
	MEMCG_DATA_OBJCGS = (1UL << 0),
	/* page has been accounted as a non-slab kernel page */
	MEMCG_DATA_KMEM = (1UL << 1),
	/* the next bit after the last actual flag */
	__NR_MEMCG_DATA_FLAGS  = (1UL << 2),
};

#define MEMCG_DATA_FLAGS_MASK (__NR_MEMCG_DATA_FLAGS - 1)

static inline bool PageMemcgKmem(struct page *page);

/*
 * After the initialization objcg->memcg is always pointing at
 * a valid memcg, but can be atomically swapped to the parent memcg.
 *
 * The caller must ensure that the returned memcg won't be released:
 * e.g. acquire the rcu_read_lock or css_set_lock.
 */
static inline struct mem_cgroup *obj_cgroup_memcg(struct obj_cgroup *objcg)
{
	return READ_ONCE(objcg->memcg);
}

/*
 * __page_memcg - get the memory cgroup associated with a non-kmem page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the memory cgroup associated with the page,
 * or NULL. This function assumes that the page is known to have a
 * proper memory cgroup pointer. It's not safe to call this function
 * against some type of pages, e.g. slab pages or ex-slab pages or
 * kmem pages.
 */
static inline struct mem_cgroup *__page_memcg(struct page *page)
{
	unsigned long memcg_data = page->memcg_data;

	VM_BUG_ON_PAGE(PageSlab(page), page);
	VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_OBJCGS, page);
	VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_KMEM, page);

	return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}

/*
 * __page_objcg - get the object cgroup associated with a kmem page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the object cgroup associated with the page,
 * or NULL. This function assumes that the page is known to have a
 * proper object cgroup pointer. It's not safe to call this function
 * against some type of pages, e.g. slab pages or ex-slab pages or
 * LRU pages.
 */
static inline struct obj_cgroup *__page_objcg(struct page *page)
{
	unsigned long memcg_data = page->memcg_data;

	VM_BUG_ON_PAGE(PageSlab(page), page);
	VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_OBJCGS, page);
	VM_BUG_ON_PAGE(!(memcg_data & MEMCG_DATA_KMEM), page);

	return (struct obj_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}

/*
 * page_memcg - get the memory cgroup associated with a page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the memory cgroup associated with the page,
 * or NULL. This function assumes that the page is known to have a
 * proper memory cgroup pointer. It's not safe to call this function
 * against some type of pages, e.g. slab pages or ex-slab pages.
 *
 * For a non-kmem page any of the following ensures page and memcg binding
 * stability:
 *
 * - the page lock
 * - LRU isolation
 * - lock_page_memcg()
 * - exclusive reference
 *
 * For a kmem page a caller should hold an rcu read lock to protect memcg
 * associated with a kmem page from being released.
 */
static inline struct mem_cgroup *page_memcg(struct page *page)
{
	if (PageMemcgKmem(page))
		return obj_cgroup_memcg(__page_objcg(page));
	else
		return __page_memcg(page);
}

/*
 * page_memcg_rcu - locklessly get the memory cgroup associated with a page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the memory cgroup associated with the page,
 * or NULL. This function assumes that the page is known to have a
 * proper memory cgroup pointer. It's not safe to call this function
 * against some type of pages, e.g. slab pages or ex-slab pages.
 */
static inline struct mem_cgroup *page_memcg_rcu(struct page *page)
{
	unsigned long memcg_data = READ_ONCE(page->memcg_data);

	VM_BUG_ON_PAGE(PageSlab(page), page);
	WARN_ON_ONCE(!rcu_read_lock_held());

	if (memcg_data & MEMCG_DATA_KMEM) {
		struct obj_cgroup *objcg;

		objcg = (void *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
		return obj_cgroup_memcg(objcg);
	}

	return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}

/*
 * page_memcg_check - get the memory cgroup associated with a page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the memory cgroup associated with the page,
 * or NULL. This function unlike page_memcg() can take any page
 * as an argument. It has to be used in cases when it's not known if a page
 * has an associated memory cgroup pointer or an object cgroups vector or
 * an object cgroup.
 *
 * For a non-kmem page any of the following ensures page and memcg binding
 * stability:
 *
 * - the page lock
 * - LRU isolation
 * - lock_page_memcg()
 * - exclusive reference
 *
 * For a kmem page a caller should hold an rcu read lock to protect memcg
 * associated with a kmem page from being released.
 */
static inline struct mem_cgroup *page_memcg_check(struct page *page)
{
	/*
	 * Because page->memcg_data might be changed asynchronously
	 * for slab pages, READ_ONCE() should be used here.
	 */
	unsigned long memcg_data = READ_ONCE(page->memcg_data);

	if (memcg_data & MEMCG_DATA_OBJCGS)
		return NULL;

	if (memcg_data & MEMCG_DATA_KMEM) {
		struct obj_cgroup *objcg;

		objcg = (void *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
		return obj_cgroup_memcg(objcg);
	}

	return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}

#ifdef CONFIG_MEMCG_KMEM
/*
 * PageMemcgKmem - check if the page has MemcgKmem flag set
 * @page: a pointer to the page struct
 *
 * Checks if the page has MemcgKmem flag set. The caller must ensure that
 * the page has an associated memory cgroup. It's not safe to call this function
 * against some types of pages, e.g. slab pages.
 */
static inline bool PageMemcgKmem(struct page *page)
{
	VM_BUG_ON_PAGE(page->memcg_data & MEMCG_DATA_OBJCGS, page);
	return page->memcg_data & MEMCG_DATA_KMEM;
}

/*
 * page_objcgs - get the object cgroups vector associated with a page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the object cgroups vector associated with the page,
 * or NULL. This function assumes that the page is known to have an
 * associated object cgroups vector. It's not safe to call this function
 * against pages, which might have an associated memory cgroup: e.g.
 * kernel stack pages.
 */
static inline struct obj_cgroup **page_objcgs(struct page *page)
{
	unsigned long memcg_data = READ_ONCE(page->memcg_data);

	VM_BUG_ON_PAGE(memcg_data && !(memcg_data & MEMCG_DATA_OBJCGS), page);
	VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_KMEM, page);

	return (struct obj_cgroup **)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}

/*
 * page_objcgs_check - get the object cgroups vector associated with a page
 * @page: a pointer to the page struct
 *
 * Returns a pointer to the object cgroups vector associated with the page,
 * or NULL. This function is safe to use if the page can be directly associated
 * with a memory cgroup.
 */
static inline struct obj_cgroup **page_objcgs_check(struct page *page)
{
	unsigned long memcg_data = READ_ONCE(page->memcg_data);

	if (!memcg_data || !(memcg_data & MEMCG_DATA_OBJCGS))
		return NULL;

	VM_BUG_ON_PAGE(memcg_data & MEMCG_DATA_KMEM, page);

	return (struct obj_cgroup **)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}

#else
static inline bool PageMemcgKmem(struct page *page)
{
	return false;
}

static inline struct obj_cgroup **page_objcgs(struct page *page)
{
	return NULL;
}

static inline struct obj_cgroup **page_objcgs_check(struct page *page)
{
	return NULL;
}
#endif

static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
{
	return (memcg == root_mem_cgroup);
}

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

static inline void mem_cgroup_protection(struct mem_cgroup *root,
					 struct mem_cgroup *memcg,
					 unsigned long *min,
					 unsigned long *low)
{
	*min = *low = 0;

	if (mem_cgroup_disabled())
		return;

	/*
	 * There is no reclaim protection applied to a targeted reclaim.
	 * We are special casing this specific case here because
	 * mem_cgroup_protected calculation is not robust enough to keep
	 * the protection invariant for calculated effective values for
	 * parallel reclaimers with different reclaim target. This is
	 * especially a problem for tail memcgs (as they have pages on LRU)
	 * which would want to have effective values 0 for targeted reclaim
	 * but a different value for external reclaim.
	 *
	 * Example
	 * Let's have global and A's reclaim in parallel:
	 *  |
	 *  A (low=2G, usage = 3G, max = 3G, children_low_usage = 1.5G)
	 *  |\
	 *  | C (low = 1G, usage = 2.5G)
	 *  B (low = 1G, usage = 0.5G)
	 *
	 * For the global reclaim
	 * A.elow = A.low
	 * B.elow = min(B.usage, B.low) because children_low_usage <= A.elow
	 * C.elow = min(C.usage, C.low)
	 *
	 * With the effective values resetting we have A reclaim
	 * A.elow = 0
	 * B.elow = B.low
	 * C.elow = C.low
	 *
	 * If the global reclaim races with A's reclaim then
	 * B.elow = C.elow = 0 because children_low_usage > A.elow)
	 * is possible and reclaiming B would be violating the protection.
	 *
	 */
	if (root == memcg)
		return;

	*min = READ_ONCE(memcg->memory.emin);
	*low = READ_ONCE(memcg->memory.elow);
}

void mem_cgroup_calculate_protection(struct mem_cgroup *root,
				     struct mem_cgroup *memcg);

static inline bool mem_cgroup_supports_protection(struct mem_cgroup *memcg)
{
	/*
	 * The root memcg doesn't account charges, and doesn't support
	 * protection.
	 */
	return !mem_cgroup_disabled() && !mem_cgroup_is_root(memcg);

}

static inline bool mem_cgroup_below_low(struct mem_cgroup *memcg)
{
	if (!mem_cgroup_supports_protection(memcg))
		return false;

	return READ_ONCE(memcg->memory.elow) >=
		page_counter_read(&memcg->memory);
}

static inline bool mem_cgroup_below_min(struct mem_cgroup *memcg)
{
	if (!mem_cgroup_supports_protection(memcg))
		return false;

	return READ_ONCE(memcg->memory.emin) >=
		page_counter_read(&memcg->memory);
}

int __mem_cgroup_charge(struct page *page, struct mm_struct *mm,
			gfp_t gfp_mask);
static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
				    gfp_t gfp_mask)
{
	if (mem_cgroup_disabled())
		return 0;
	return __mem_cgroup_charge(page, mm, gfp_mask);
}

int mem_cgroup_swapin_charge_page(struct page *page, struct mm_struct *mm,
				  gfp_t gfp, swp_entry_t entry);
void mem_cgroup_swapin_uncharge_swap(swp_entry_t entry);

void __mem_cgroup_uncharge(struct page *page);
static inline void mem_cgroup_uncharge(struct page *page)
{
	if (mem_cgroup_disabled())
		return;
	__mem_cgroup_uncharge(page);
}

void __mem_cgroup_uncharge_list(struct list_head *page_list);
static inline void mem_cgroup_uncharge_list(struct list_head *page_list)
{
	if (mem_cgroup_disabled())
		return;
	__mem_cgroup_uncharge_list(page_list);
}

void mem_cgroup_migrate(struct page *oldpage, struct page *newpage);

/**
 * mem_cgroup_lruvec - get the lru list vector for a memcg & node
 * @memcg: memcg of the wanted lruvec
 * @pgdat: pglist_data
 *
 * Returns the lru list vector holding pages for a given @memcg &
 * @pgdat combination. This can be the node lruvec, if the memory
 * controller is disabled.
 */
static inline struct lruvec *mem_cgroup_lruvec(struct mem_cgroup *memcg,
					       struct pglist_data *pgdat)
{
	struct mem_cgroup_per_node *mz;
	struct lruvec *lruvec;

	if (mem_cgroup_disabled()) {
		lruvec = &pgdat->__lruvec;
		goto out;
	}

	if (!memcg)
		memcg = root_mem_cgroup;

	mz = memcg->nodeinfo[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;
}

/**
 * mem_cgroup_page_lruvec - return lruvec for isolating/putting an LRU page
 * @page: the page
 *
 * This function relies on page->mem_cgroup being stable.
 */
static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page)
{
	pg_data_t *pgdat = page_pgdat(page);
	struct mem_cgroup *memcg = page_memcg(page);

	VM_WARN_ON_ONCE_PAGE(!memcg && !mem_cgroup_disabled(), page);
	return mem_cgroup_lruvec(memcg, pgdat);
}

struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);

struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm);

struct lruvec *lock_page_lruvec(struct page *page);
struct lruvec *lock_page_lruvec_irq(struct page *page);
struct lruvec *lock_page_lruvec_irqsave(struct page *page,
						unsigned long *flags);

#ifdef CONFIG_DEBUG_VM
void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page);
#else
static inline void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page)
{
}
#endif

static inline
struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css){
	return css ? container_of(css, struct mem_cgroup, css) : NULL;
}

static inline bool obj_cgroup_tryget(struct obj_cgroup *objcg)
{
	return percpu_ref_tryget(&objcg->refcnt);
}

static inline void obj_cgroup_get(struct obj_cgroup *objcg)
{
	percpu_ref_get(&objcg->refcnt);
}

static inline void obj_cgroup_get_many(struct obj_cgroup *objcg,
				       unsigned long nr)
{
	percpu_ref_get_many(&objcg->refcnt, nr);
}

static inline void obj_cgroup_put(struct obj_cgroup *objcg)
{
	percpu_ref_put(&objcg->refcnt);
}

static inline void mem_cgroup_put(struct mem_cgroup *memcg)
{
	if (memcg)
		css_put(&memcg->css);
}

#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;
}
struct mem_cgroup *mem_cgroup_from_id(unsigned short id);

static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m)
{
	return mem_cgroup_from_css(seq_css(m));
}

static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec)
{
	struct mem_cgroup_per_node *mz;

	if (mem_cgroup_disabled())
		return NULL;

	mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
	return mz->memcg;
}

/**
 * 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);
}

static inline bool mem_cgroup_is_descendant(struct mem_cgroup *memcg,
			      struct mem_cgroup *root)
{
	if (root == memcg)
		return true;
	return cgroup_is_descendant(memcg->css.cgroup, root->css.cgroup);
}

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;
}

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);
}

void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
		int zid, int nr_pages);

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 READ_ONCE(mz->lru_zone_size[zone_idx][lru]);
}

void mem_cgroup_handle_over_high(void);

unsigned long mem_cgroup_get_max(struct mem_cgroup *memcg);

unsigned long mem_cgroup_size(struct mem_cgroup *memcg);

void mem_cgroup_print_oom_context(struct mem_cgroup *memcg,
				struct task_struct *p);

void mem_cgroup_print_oom_meminfo(struct mem_cgroup *memcg);

static inline void mem_cgroup_enter_user_fault(void)
{
	WARN_ON(current->in_user_fault);
	current->in_user_fault = 1;
}

static inline void mem_cgroup_exit_user_fault(void)
{
	WARN_ON(!current->in_user_fault);
	current->in_user_fault = 0;
}

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

bool mem_cgroup_oom_synchronize(bool wait);
struct mem_cgroup *mem_cgroup_get_oom_group(struct task_struct *victim,
					    struct mem_cgroup *oom_domain);
void mem_cgroup_print_oom_group(struct mem_cgroup *memcg);

#ifdef CONFIG_MEMCG_SWAP
extern bool cgroup_memory_noswap;
#endif

void lock_page_memcg(struct page *page);
void unlock_page_memcg(struct page *page);

void __mod_memcg_state(struct mem_cgroup *memcg, int idx, int val);

/* idx can be of type enum memcg_stat_item or node_stat_item */
static inline void mod_memcg_state(struct mem_cgroup *memcg,
				   int idx, int val)
{
	unsigned long flags;

	local_irq_save(flags);
	__mod_memcg_state(memcg, idx, val);
	local_irq_restore(flags);
}

static inline unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx)
{
	return READ_ONCE(memcg->vmstats.state[idx]);
}

static inline unsigned long lruvec_page_state(struct lruvec *lruvec,
					      enum node_stat_item idx)
{
	struct mem_cgroup_per_node *pn;

	if (mem_cgroup_disabled())
		return node_page_state(lruvec_pgdat(lruvec), idx);

	pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
	return READ_ONCE(pn->lruvec_stats.state[idx]);
}

static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec,
						    enum node_stat_item idx)
{
	struct mem_cgroup_per_node *pn;
	long x = 0;
	int cpu;

	if (mem_cgroup_disabled())
		return node_page_state(lruvec_pgdat(lruvec), idx);

	pn = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
	for_each_possible_cpu(cpu)
		x += per_cpu(pn->lruvec_stats_percpu->state[idx], cpu);
#ifdef CONFIG_SMP
	if (x < 0)
		x = 0;
#endif
	return x;
}

void mem_cgroup_flush_stats(void);
void mem_cgroup_flush_stats_delayed(void);

void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx,
			      int val);
void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val);

static inline void mod_lruvec_kmem_state(void *p, enum node_stat_item idx,
					 int val)
{
	unsigned long flags;

	local_irq_save(flags);
	__mod_lruvec_kmem_state(p, idx, val);
	local_irq_restore(flags);
}

static inline void mod_memcg_lruvec_state(struct lruvec *lruvec,
					  enum node_stat_item idx, int val)
{
	unsigned long flags;

	local_irq_save(flags);
	__mod_memcg_lruvec_state(lruvec, idx, val);
	local_irq_restore(flags);
}

void __count_memcg_events(struct mem_cgroup *memcg, enum vm_event_item idx,
			  unsigned long count);

static inline void count_memcg_events(struct mem_cgroup *memcg,
				      enum vm_event_item idx,
				      unsigned long count)
{
	unsigned long flags;

	local_irq_save(flags);
	__count_memcg_events(memcg, idx, count);
	local_irq_restore(flags);
}

static inline void count_memcg_page_event(struct page *page,
					  enum vm_event_item idx)
{
	struct mem_cgroup *memcg = page_memcg(page);

	if (memcg)
		count_memcg_events(memcg, idx, 1);
}

static inline void count_memcg_event_mm(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))
		count_memcg_events(memcg, idx, 1);
	rcu_read_unlock();
}

static inline void memcg_memory_event(struct mem_cgroup *memcg,
				      enum memcg_memory_event event)
{
	bool swap_event = event == MEMCG_SWAP_HIGH || event == MEMCG_SWAP_MAX ||
			  event == MEMCG_SWAP_FAIL;

	atomic_long_inc(&memcg->memory_events_local[event]);
	if (!swap_event)
		cgroup_file_notify(&memcg->events_local_file);

	do {
		atomic_long_inc(&memcg->memory_events[event]);
		if (swap_event)
			cgroup_file_notify(&memcg->swap_events_file);
		else
			cgroup_file_notify(&memcg->events_file);

		if (!cgroup_subsys_on_dfl(memory_cgrp_subsys))
			break;
		if (cgrp_dfl_root.flags & CGRP_ROOT_MEMORY_LOCAL_EVENTS)
			break;
	} while ((memcg = parent_mem_cgroup(memcg)) &&
		 !mem_cgroup_is_root(memcg));
}

static inline void memcg_memory_event_mm(struct mm_struct *mm,
					 enum memcg_memory_event event)
{
	struct mem_cgroup *memcg;

	if (mem_cgroup_disabled())
		return;

	rcu_read_lock();
	memcg = mem_cgroup_from_task(rcu_dereference(mm->owner));
	if (likely(memcg))
		memcg_memory_event(memcg, event);
	rcu_read_unlock();
}

void split_page_memcg(struct page *head, unsigned int nr);

unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
						gfp_t gfp_mask,
						unsigned long *total_scanned);

#else /* CONFIG_MEMCG */

#define MEM_CGROUP_ID_SHIFT	0
#define MEM_CGROUP_ID_MAX	0

static inline struct mem_cgroup *page_memcg(struct page *page)
{
	return NULL;
}

static inline struct mem_cgroup *page_memcg_rcu(struct page *page)
{
	WARN_ON_ONCE(!rcu_read_lock_held());
	return NULL;
}

static inline struct mem_cgroup *page_memcg_check(struct page *page)
{
	return NULL;
}

static inline bool PageMemcgKmem(struct page *page)
{
	return false;
}

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

static inline bool mem_cgroup_disabled(void)
{
	return true;
}

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

static inline void memcg_memory_event_mm(struct mm_struct *mm,
					 enum memcg_memory_event event)
{
}

static inline void mem_cgroup_protection(struct mem_cgroup *root,
					 struct mem_cgroup *memcg,
					 unsigned long *min,
					 unsigned long *low)
{
	*min = *low = 0;
}

static inline void mem_cgroup_calculate_protection(struct mem_cgroup *root,
						   struct mem_cgroup *memcg)
{
}

static inline bool mem_cgroup_below_low(struct mem_cgroup *memcg)
{
	return false;
}

static inline bool mem_cgroup_below_min(struct mem_cgroup *memcg)
{
	return false;
}

static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
				    gfp_t gfp_mask)
{
	return 0;
}

static inline int mem_cgroup_swapin_charge_page(struct page *page,
			struct mm_struct *mm, gfp_t gfp, swp_entry_t entry)
{
	return 0;
}

static inline void mem_cgroup_swapin_uncharge_swap(swp_entry_t entry)
{
}

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

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

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

static inline struct lruvec *mem_cgroup_lruvec(struct mem_cgroup *memcg,
					       struct pglist_data *pgdat)
{
	return &pgdat->__lruvec;
}

static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page)
{
	pg_data_t *pgdat = page_pgdat(page);

	return &pgdat->__lruvec;
}

static inline void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page)
{
}

static inline struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg)
{
	return NULL;
}

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

static inline struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm)
{
	return NULL;
}

static inline
struct mem_cgroup *mem_cgroup_from_css(struct cgroup_subsys_state *css)
{
	return NULL;
}

static inline void mem_cgroup_put(struct mem_cgroup *memcg)
{
}

static inline struct lruvec *lock_page_lruvec(struct page *page)
{
	struct pglist_data *pgdat = page_pgdat(page);

	spin_lock(&pgdat->__lruvec.lru_lock);
	return &pgdat->__lruvec;
}

static inline struct lruvec *lock_page_lruvec_irq(struct page *page)
{
	struct pglist_data *pgdat = page_pgdat(page);

	spin_lock_irq(&pgdat->__lruvec.lru_lock);
	return &pgdat->__lruvec;
}

static inline struct lruvec *lock_page_lruvec_irqsave(struct page *page,
		unsigned long *flagsp)
{
	struct pglist_data *pgdat = page_pgdat(page);

	spin_lock_irqsave(&pgdat->__lruvec.lru_lock, *flagsp);
	return &pgdat->__lruvec;
}

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

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

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

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

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;
}

static inline struct mem_cgroup *mem_cgroup_from_seq(struct seq_file *m)
{
	return NULL;
}

static inline struct mem_cgroup *lruvec_memcg(struct lruvec *lruvec)
{
	return NULL;
}

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

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

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

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

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

static inline void
mem_cgroup_print_oom_meminfo(struct mem_cgroup *memcg)
{
}

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

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

static inline void mem_cgroup_handle_over_high(void)
{
}

static inline void mem_cgroup_enter_user_fault(void)
{
}

static inline void mem_cgroup_exit_user_fault(void)
{
}

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

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

static inline struct mem_cgroup *mem_cgroup_get_oom_group(
	struct task_struct *victim, struct mem_cgroup *oom_domain)
{
	return NULL;
}

static inline void mem_cgroup_print_oom_group(struct mem_cgroup *memcg)
{
}

static inline void __mod_memcg_state(struct mem_cgroup *memcg,
				     int idx,
				     int nr)
{
}

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

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

static inline unsigned long lruvec_page_state(struct lruvec *lruvec,
					      enum node_stat_item idx)
{
	return node_page_state(lruvec_pgdat(lruvec), idx);
}

static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec,
						    enum node_stat_item idx)
{
	return node_page_state(lruvec_pgdat(lruvec), idx);
}

static inline void mem_cgroup_flush_stats(void)
{
}

static inline void mem_cgroup_flush_stats_delayed(void)
{
}

static inline void __mod_memcg_lruvec_state(struct lruvec *lruvec,
					    enum node_stat_item idx, int val)
{
}

static inline void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx,
					   int val)
{
	struct page *page = virt_to_head_page(p);

	__mod_node_page_state(page_pgdat(page), idx, val);
}

static inline void mod_lruvec_kmem_state(void *p, enum node_stat_item idx,
					 int val)
{
	struct page *page = virt_to_head_page(p);

	mod_node_page_state(page_pgdat(page), idx, val);
}

static inline void count_memcg_events(struct mem_cgroup *memcg,
				      enum vm_event_item idx,
				      unsigned long count)
{
}

static inline void __count_memcg_events(struct mem_cgroup *memcg,
					enum vm_event_item idx,
					unsigned long count)
{
}

static inline void count_memcg_page_event(struct page *page,
					  int idx)
{
}

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

static inline void split_page_memcg(struct page *head, unsigned int nr)
{
}

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;
}
#endif /* CONFIG_MEMCG */

static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx)
{
	__mod_lruvec_kmem_state(p, idx, 1);
}

static inline void __dec_lruvec_kmem_state(void *p, enum node_stat_item idx)
{
	__mod_lruvec_kmem_state(p, idx, -1);
}

static inline struct lruvec *parent_lruvec(struct lruvec *lruvec)
{
	struct mem_cgroup *memcg;

	memcg = lruvec_memcg(lruvec);
	if (!memcg)
		return NULL;
	memcg = parent_mem_cgroup(memcg);
	if (!memcg)
		return NULL;
	return mem_cgroup_lruvec(memcg, lruvec_pgdat(lruvec));
}

static inline void unlock_page_lruvec(struct lruvec *lruvec)
{
	spin_unlock(&lruvec->lru_lock);
}

static inline void unlock_page_lruvec_irq(struct lruvec *lruvec)
{
	spin_unlock_irq(&lruvec->lru_lock);
}

static inline void unlock_page_lruvec_irqrestore(struct lruvec *lruvec,
		unsigned long flags)
{
	spin_unlock_irqrestore(&lruvec->lru_lock, flags);
}

/* Test requires a stable page->memcg binding, see page_memcg() */
static inline bool page_matches_lruvec(struct page *page, struct lruvec *lruvec)
{
	return lruvec_pgdat(lruvec) == page_pgdat(page) &&
	       lruvec_memcg(lruvec) == page_memcg(page);
}

/* Don't lock again iff page's lruvec locked */
static inline struct lruvec *relock_page_lruvec_irq(struct page *page,
		struct lruvec *locked_lruvec)
{
	if (locked_lruvec) {
		if (page_matches_lruvec(page, locked_lruvec))
			return locked_lruvec;

		unlock_page_lruvec_irq(locked_lruvec);
	}

	return lock_page_lruvec_irq(page);
}

/* Don't lock again iff page's lruvec locked */
static inline struct lruvec *relock_page_lruvec_irqsave(struct page *page,
		struct lruvec *locked_lruvec, unsigned long *flags)
{
	if (locked_lruvec) {
		if (page_matches_lruvec(page, locked_lruvec))
			return locked_lruvec;

		unlock_page_lruvec_irqrestore(locked_lruvec, *flags);
	}

	return lock_page_lruvec_irqsave(page, flags);
}

#ifdef CONFIG_CGROUP_WRITEBACK

struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb);
void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages,
			 unsigned long *pheadroom, unsigned long *pdirty,
			 unsigned long *pwriteback);

void mem_cgroup_track_foreign_dirty_slowpath(struct page *page,
					     struct bdi_writeback *wb);

static inline void mem_cgroup_track_foreign_dirty(struct page *page,
						  struct bdi_writeback *wb)
{
	if (mem_cgroup_disabled())
		return;

	if (unlikely(&page_memcg(page)->css != wb->memcg_css))
		mem_cgroup_track_foreign_dirty_slowpath(page, wb);
}

void mem_cgroup_flush_foreign(struct bdi_writeback *wb);

#else	/* CONFIG_CGROUP_WRITEBACK */

static inline struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb)
{
	return NULL;
}

static inline void mem_cgroup_wb_stats(struct bdi_writeback *wb,
				       unsigned long *pfilepages,
				       unsigned long *pheadroom,
				       unsigned long *pdirty,
				       unsigned long *pwriteback)
{
}

static inline void mem_cgroup_track_foreign_dirty(struct page *page,
						  struct bdi_writeback *wb)
{
}

static inline void mem_cgroup_flush_foreign(struct bdi_writeback *wb)
{
}

#endif	/* CONFIG_CGROUP_WRITEBACK */

struct sock;
bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages,
			     gfp_t gfp_mask);
void mem_cgroup_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages);
#ifdef CONFIG_MEMCG
extern struct static_key_false memcg_sockets_enabled_key;
#define mem_cgroup_sockets_enabled static_branch_unlikely(&memcg_sockets_enabled_key)
void mem_cgroup_sk_alloc(struct sock *sk);
void mem_cgroup_sk_free(struct sock *sk);
static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
{
	if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && memcg->tcpmem_pressure)
		return true;
	do {
		if (time_before(jiffies, memcg->socket_pressure))
			return true;
	} while ((memcg = parent_mem_cgroup(memcg)));
	return false;
}

int alloc_shrinker_info(struct mem_cgroup *memcg);
void free_shrinker_info(struct mem_cgroup *memcg);
void set_shrinker_bit(struct mem_cgroup *memcg, int nid, int shrinker_id);
void reparent_shrinker_deferred(struct mem_cgroup *memcg);
#else
#define mem_cgroup_sockets_enabled 0
static inline void mem_cgroup_sk_alloc(struct sock *sk) { };
static inline void mem_cgroup_sk_free(struct sock *sk) { };
static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
{
	return false;
}

static inline void set_shrinker_bit(struct mem_cgroup *memcg,
				    int nid, int shrinker_id)
{
}
#endif

#ifdef CONFIG_MEMCG_KMEM
bool mem_cgroup_kmem_disabled(void);
int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order);
void __memcg_kmem_uncharge_page(struct page *page, int order);

struct obj_cgroup *get_obj_cgroup_from_current(void);

int obj_cgroup_charge(struct obj_cgroup *objcg, gfp_t gfp, size_t size);
void obj_cgroup_uncharge(struct obj_cgroup *objcg, size_t size);

extern struct static_key_false memcg_kmem_enabled_key;

extern int memcg_nr_cache_ids;
void memcg_get_cache_ids(void);
void memcg_put_cache_ids(void);

/*
 * Helper macro to loop through all memcg-specific caches. Callers must still
 * check if the cache is valid (it is either valid or NULL).
 * the slab_mutex must be held when looping through those caches
 */
#define for_each_memcg_cache_index(_idx)	\
	for ((_idx) = 0; (_idx) < memcg_nr_cache_ids; (_idx)++)

static inline bool memcg_kmem_enabled(void)
{
	return static_branch_likely(&memcg_kmem_enabled_key);
}

static inline int memcg_kmem_charge_page(struct page *page, gfp_t gfp,
					 int order)
{
	if (memcg_kmem_enabled())
		return __memcg_kmem_charge_page(page, gfp, order);
	return 0;
}

static inline void memcg_kmem_uncharge_page(struct page *page, int order)
{
	if (memcg_kmem_enabled())
		__memcg_kmem_uncharge_page(page, order);
}

/*
 * A helper for accessing memcg's kmem_id, used for getting
 * corresponding LRU lists.
 */
static inline int memcg_cache_id(struct mem_cgroup *memcg)
{
	return memcg ? memcg->kmemcg_id : -1;
}

struct mem_cgroup *mem_cgroup_from_obj(void *p);

#else
static inline bool mem_cgroup_kmem_disabled(void)
{
	return true;
}

static inline int memcg_kmem_charge_page(struct page *page, gfp_t gfp,
					 int order)
{
	return 0;
}

static inline void memcg_kmem_uncharge_page(struct page *page, int order)
{
}

static inline int __memcg_kmem_charge_page(struct page *page, gfp_t gfp,
					   int order)
{
	return 0;
}

static inline void __memcg_kmem_uncharge_page(struct page *page, int order)
{
}

#define for_each_memcg_cache_index(_idx)	\
	for (; NULL; )

static inline bool memcg_kmem_enabled(void)
{
	return false;
}

static inline int memcg_cache_id(struct mem_cgroup *memcg)
{
	return -1;
}

static inline void memcg_get_cache_ids(void)
{
}

static inline void memcg_put_cache_ids(void)
{
}

static inline struct mem_cgroup *mem_cgroup_from_obj(void *p)
{
       return NULL;
}

#endif /* CONFIG_MEMCG_KMEM */

#endif /* _LINUX_MEMCONTROL_H */

OHA YOOOO
����JFIF��� ( %!1!%)+...383-7(-.+  ---+--------------------+-----7------+-7-----+---++����"����M!1AQaq�"2���Rr��#3Bb�s����CSc��$4���D���TdE������'1!AQ"2q�a���� ?�Z�L�[�����=D�6]�T mѰx$�6��@ۣ`�Itl �"��(6�Dst�2:��Fk���x���4��K�h}�l �?r��@��!�Q��Y��?��-� =��O�����(6����<A�x%B��<A�x%B��<(6�@��.���*%���$e�m��T�wi��~H�]F�Ѱx"�`�Ul��ꃁ���RPl�6�UIA�x(���#�B��zy%�<�L���mvN �ԭ6�Y$Qk �S��䮰�K6ף�x�+�T��L4���>�C=j�������p�|J�ǥ���b=���Y�6g9��F1��Y�vݩ�`��塏��>� � �ݨ,�����A�o�=W*���"��>����� \ �"݄(꧈�y���9�m���d�aAD�u&�T��D �@$BITU�"��D�D!BH�� � �UTu� �^c�?�[ND�K�`�\F'�jf��<�G�G��B�q]�����!tl�6�]\4mѰx"��<�6��B�֊�o4.�Ah�8QM,�y�����%cLh��y�c����!�8Tb���h�!p�q�t����EIA�x'Pl �KT N h6�J�P7�6Ԩ�6恰&��� �� � ����R���)m�`8�nC�J���E��%H� D�"T �n��W�s+���x���+g�?t��@�����;�>�o��0�����|Ћ0�����|"�J�%EBBBB!X�����|��X��̟s��Ӭ��H獎ŏ m׷�0���—���2q����s�'q]�����7�%����hp8EAYy�Ӗc��9%�A� _g�ٙ���}ӯ�Ul�Ƽl Ѓ�a�ۮ9�i�*��R"�*������:��j�zE+�H ����kB�2�e��~��Zd# ��0Vr�T�ev������Y�����-8]o��x�~)�9��}W:RF֟��P�A�� ���G+hH�P6�����:���Ԁ��I�O{Y�F��$U"H�#2��*J����L��L�B�*��T`���(�-:�R�H Z��"�B�Ihh��B�B�����urP�%� ��9��7v",�!�A�b�X�V6F��� ���^K�+��f��qm^��'�9�K� �����o��! ��P�%B����E��}Xo�U��(BXJ󥯢t��u�&�}Xj +%�7+�c� �\��t�9t p*)��L�Z��T��KTC�NGT�PH pQ�� ɚ^qB ��8!�*��� P��"T iHS���n��W�s+���x���,mtG��@��D~���� } tY������Y���4����!!@!@!@!@�a�^h��R���*��|!���Us;����n:��#���4-h�chW꼝���%�+Z�kA��E%��4“M$�����@y�q˓��ʽ�� $U��������eH�-;�a�ކ�&����*IB� �Z�w��;c��|�3JZ@��-��w�k������Q�Ϊ �g�d���I��G����8�N�G�����(R)�2�_�]3;]z7]�2�w�r����I�Iĭ=15���b~ 2�{cuO�'෎V�nyI)��1s�� ����i�lT*�ݠ�������H��p��^j�C�Q�B*(������(m�Wb ���Z�)P*D$EGimZU�ViZ��┵\�P�L���IW���Eh����[榚V�R8+l��zV<�B�M�j�V�pw�%�*�UKYǒ}�J�% ���(�����HM��NQ�S�toԝ�ܪZd�ল���,UP�J�=�Z m�T��-]��y��*k+���:�%J��V���X�i�o6�D38�h�=� �'G�$�@��X��H�P�~��X��e�Ã�����4���WS��x�3���q�˓V�S��k'�K�w�N�w�eb��,��bcw�1�� �ȃ�%����͖��Bd�J��*V�Y��.;Kh�� �*���1 X���-�� �OJ��$ sCU��H�Zj���N��e�m�zT�"T��%���8�(Q�4 雐��d8���j�$NH�'$@�� �a�< ᴖ��K��W ��5}��{��-�����w�}�,Y����䴣�,��S�|�R��BT D!�R ^��I *I4m%Gk�2&�y�m$�k;�7m��sW���:�q��!汖s��]�i�;(��ƣ�7_�Ve�o\㛜K�y���T/.yܝ�2! �AB(BD��ꦽ� �EX�w2��\�����^{Nɥ�=����lB�V���y ��t||�K$�v��Ȃ>* D��Q��z$�y��F�MqD��(���鍵M2 �G� ;[r*4�T�Rd�oV#�t+���P�A-��v�*�>��PhU ���-QJ��Y�mE;k�"�F�?%���R��&������G�ӳhx;�i��h���5��+�Cr��8���B�:�+BI�Ϯ�LOٳ��=�~��,��b�t�C�6p\����x ��«�!{�ҽhh��7<� ĊW���<�CNw�ai�@��ںf����j#^�Ny���\^rRU9�1u`�RC% T)SCM��VtR��U溢�f���i�|��Y/SpWF�V ��*�A�5)%T9����'B��O "�TTTQZTm�Dv] �����U����������R�����5�/B^�.�/���"rE�8B)�"�P�D!Km�<W��y�� |�[�m���,Y\A�]��7��f����ѻ,H�Zj[���eh� (N+P�U"N�*���ء6L� 뛐�������"T D!BBT�"�#��I~%�͑�W ���Q���w��] ���.���.��<���O��Zl�,��S�|���%F��9"H�Cj�66��4Wy��NTR��i Y��� '����|���c<�fژ��E�����\>.�|hH�Yem��&��"h!!*lehjӼ �s�HQ�b���� pi�Η|h�'�Rh��SP3 ۽�$0��P X?�w�-;5���4h�{� ���/U�v ���ְ\2o��e�����@(��+�u���Ē�����B^��&�M]�B� �"��D��@!@!@!,�lΖF��W=���^����da�cehi�����_��#d��[ 9_=�]�Ù^�$!�-p8�u�(B�/� ��A�!�����\�F4q��3����:�[�>�w�ك�[���]��<��[�3�'��M+�yMH�R D�P��(�P��AJ�b Qq�F�bq�ߪ:J�$j��8�-5 ��z@�#��K� ڕ�N ԺKړ�^y߉�Ԭ.�tv��n9��w���n�|s�Z��;q"{���9�! �BJ��BMe��=�`���֍�&�Ba�{� ���v ���@�> ���lp�6������uRh�"�i�,ɯ�79o�*�� ��V�&�[\v��:�bq k�|���\͒��1��]q��C �xi")��*0w��{��0�c��������߸ɢj�X�MQ����Y�R%B�D�P��!�$@$J��J��K�����r^�V~�� p�KWg���.��m 뛶���L�Z Bã� U; �H7�V�A��+�B��r R7!�%\���!�!�!�� �a��W�����+��Z�cw���]�C�D��}˽��]��g���>KM���?���� G�4HI&����i=,�Ge��*��o���ׯ r�c�RZ����$� ����fӿ.:��q'\j�M\㼕j�g�߃rh�� � S\ ��g���d%UkY� ��?Nn>�Y$ &�,�[/I�ZC��>�a��S�K��p ��� �Ƭ�QY�X��h!M�m�h�8]p���y%� C/gt����ڭX��� c�iW\�;'�i�� �atd���ā�7(6L`��]�=��hP��.�ss��X�9�X��ji�;��t��\��V���0f�87�U�?k��ww3W�|��=L@� ���OG��bv�Z���uj��AD�BEjubӨ&����F�Wgb�G���:�uT1��ni���y|�X�Etu������n�k�D��q57���g�A�n ��X]&����+����sD%�0�p��<��Vtm�����Z���9�^�Y*�(�{�/��j���sn}uz�����_n����������MErjΎ��[#N-5�5�a\��cu]m��M�WN�b�_ p�t�q�~ '��H�- y�@7%Oj�h�y/B��d�k�-{o�,-5��i�4toWx꘳�_�(E�LJ�í�m;�]t��V�^23I�{�h�g�43-zJ�ֽ��g�Z "'!N��:� N������Qku�8�3�n^���s,�6(� �nv��.�),��eƷK�\K����IPO�A��������e�K���ڌ6����yW�)֋��Z}�m{쾙��x���{hyn+/EY�l�W!-�$�U.��I��� ��� �� �/M�;��Pݎx�"~+��Ή1�&ѯ���=����#�ыv�$�[�"�R��To�v~)�U�˨ x0^q��S���^�d����ʠ�W� ��5�B���dy"��&�õ���c��g�+��9��ugh�ޖG���7������ �곗Hz;f�L��`8���{"��؛f�1��&�)J[�I������!n��v��b�Ik{�������ŋ���qo�s\��}ɛ\*KO<=h�L�2�U��Z� ���v���[O��8�@7$t����4S2r�ʬm���)18op�?��]1%�<��&71�k�.�s$.?-��s�ïZ� C�DjFC�w֠r+�@U4U��xY2����N�w�S�\S+�� P�0D��� ����R�>*D�3�֎m�Fu��v^k��,�9�-�V����M�k���Rw֏�Z�[Y�=���q:Aů%�>�����O�0�pmӅC�^뇍6��+E��N�f>29^L����=e�gi�-0�����e�W5��U�E�x�і��(ZKH�F(�Y�mrA;Gf\�H�z�G��iw� �^�r�y������-.��9��2|�%���ÌR�����J��� x��ab��KD�꾏!�k��D�s4o���F/9�2��fv��?y���z;WLC�T�*���l�"�b[�qi��A� ����Vf�җ�W'fA������� ¢�#h?%.�҆�lߊ�_��w� 6�uA�*V�;M�y�*�OY����1MZ6��g1�PsWiv�e���%B����@�B"�@$�TQF�т@p�q֫9��+��F��bF� VljWx�B�%���L����ۗ$��˒r������ � � d�p:KZ����+��Z�c{��r��D�ކ}˿h}��"be�I !���-[��n�{ft�J`�ь7f#�\c�{rڱ����T0уQ~���Q��h�����9���;��Ֆr�Ts�Y�dt��L�ٳx�R�i�<�B�g�=��^caؤs�EI��SAEɤ6�\��b�pn_�Z�U�u�� c\}Z�a��y��B�PZ���'�Ya���Ʈ��N�� ��I�C��,Vp��+A^Y,��,h*��[P�!�|�����I-,nn��& �x��u )�T�o��%��]8-x�m�dh́�sz]�/�#�}�{� �uq*͚��1=��g27�4�l�;���Rn�v�G�zܑ`�Z9���j� �ᲈ�X̜�]�$���OYɊT��2� %BAJ����� �:�uԮU�j_� z'�48d�T'��F�g�rI�Ƹ��+ :��p� '$涨�䳶J5�k�48Tk�[;c��K=��zՕXʛuS��"��Q�8l �m��ˋ��k+���ᴇ��$V _�%$g��k��]��GZ�t�^ʹ�쮣��k��m�2V:9׊8c෎v%�8O�&}�����]�\�G4?��3F ,�6I9�k��^�����m���TЕm � J�P� ��}�� ��Y���2��}�&���{��|(Y�o���J���v�qܶ��EAA����BG�o<�Y1�K+�����۽���^�dŹ���-�v�����P��It���sh�VŦ���ޫ.H�4+�9m�ώ�Q �H���%D�@�!@�%@AFkK��B�&hCm��8'&7.A9y�P�$J�B�P�*BJp< �t���͑�W�����E- ��#�h�8��� {K�s���Zgu���m=IU�v���;!�cϴ� ��J�"r\ 0 p��+�8T��e]ĵy�rߧ\'�4s\�ep����� <�ޑ}ƶ!��9�V�Mk]R;1���4L���'2j���B��F@c���f���e=�k�t�n�?X��2W����j����&��Ꜩ�n�WԮ�5� �����G���|h�m�(ݹ��@Z��VY$?�6�qy$�'���l�z��Õ��I���pK_ny�Tlq��<��.#��)��&���0�)#;s�`k��xn5ʞ�4�-�Y� ���'�kFe���k%������=�{c9���u�L�Ut��,�`g���iS)Z��Z@���l8B��P1�y��Z�ѩ�\�㏲Vk���&K,��I4����iX!��U,���7‰l����`t��E�I��ʺN�P�(����k!�}֒�\q��-m'%؝CBh����aTn[�%Z}�C��0P>bs$�)�4���x��9E�&�^EQf��!�mt�z��8��ձhR�Rw�ͨ��{>g��(��c�C���p�� �޺ S��n� l���$lgn�ۂ����I�{݉$�XnM��-{��Z��E-����n��*Si/`s?%��8��6�<����� \7A��WZR#���Ǔi�˹ V2*��B�� �� T�=3n�&юA�� ���%��_O� ->���G�EgJ�C��a?��tl@����6��m��Q���p�s(^���*�� � �Tfi :�b��Ed���׀�|c���8^a���F�[J�~7*@n�3��2��j��mik^��NyF�J�g�������6���*@��Pg�珢�C�g��*=5���R��g�=U_��;G�~)&��M���\<�F,�]�&��<\o�L�]����g �� r޿��������$kk��i(�!�ݥE�V�E�;ͨ���헮�����5���TiTM�z��+N����Ī��J�e{ݺ6 �n$�q<�Y�!�1�yAs����.�@��U�%+�έ��u\]J�`�Mdփ��C���;3��:&�^��7NK ���øS��]��'�7v�M;�ä\BD�1�P:�J#i��u��e���mZ���<���X?eew'8��� �=��փ��.����Ԯe�c�e�O)�KZ9 rW,�����a#[���U[�03\ޚ�\QU�3���L<⵶Zv�dP2���4d5����\f���f�b���н�~��x��e�I��J��e�M2���d��oݴ���\|2M��6U�.��RYt|���O~�Q��pV���։c��C����E:�9��q@��N�D�;� �y�;M�Z�3���BԷڒ� ���Sm>�t��q�O@��=��s�6����H���EAi����e��;��ղ� p�<1T�&��79�ǽ�1#�5��'xµ��eODB��Z^;@7o5���"����xZ+�!S6�<�&�5��z���xa�.������73k�6��Yc@@ � ���D� ��� �f����438D75�/?��.�%����� � ?�7�L�)�u�����ٙ�S�]��s+���?��r.�G��e���sBBB!Y�4]��) G���g OҴʡi�͐�6QԼ�' �2wT�~��p嬙�z�q��ˆ8a�-��f^ˆҀ���L����E4�GX^�5�(�R�a���>���F�v"! �5�~>�]�,�~*2��n�M���>�i�A �B1U����<�R&��ϊz2�*FV�ѵ����Fm������Z5���~�r�T-�=� �1�7���pP��N �otg���dǟGo޶D�l�U����T��hp8��ε���n#ӊ�[y98��(�N!![p5 P�D! �� $8��r�#r�/;� �ȪD rTԨ�J��f�y��i.w�#�n ��k��V���#�b7]���|�^l61�w�ܼO�\�=�:`��s:=3��H��zJ3ʾJ*�Ղ�f����V�8�c0�pV[�u�!5��*ZRJFw�|�(�Ù���{���5$�8p �d$�A�J��rI���4��Gm������V�2����#2��Y N ��C��zy���+e-���q��H�]<�9�W{��%&��g��2���[���sq �U���f�Ӎ�<.���@�e=�$h�y��r��� ��vޢ���1���{.�%E�I�6�����L,��s���F�e`�Z�w5�� ��?� ���uzR��0U��?́o�i#���t��)�u[#�{M�9�q��劘�?�OdqOџv8���q>�}�c��Y�:E��U��tj/�i��#�7�yQl�����4��vUg�~;�h�� �@'�\�09�9���S�Z�Ӕ�K]��KE�8�l{�?V��ܪ��{ւ�ٱ�ԕ��zd�U�tD��~�*.j��[Du0=��w'�kR�q��z5 x: Dߘ���k��WYh�Y�OUg ���t�w*�>u��du�L'P�����O%���iuմ���=�JpvnZcm�^��OٱC%܌�`�����Ee�L�u���غ�^�owȭ�<2�����W���v�����[�KK_P*�_i�ͮ\A�Fl��h ŭ��K��r�E��;FB�qSUs�'�W�'v�ߴp?tës��`�bm;b��H�bN���q�A���u���ki�Ԕ4A�J���"Ƌ��36C[�sLM�k���⺖��/����z�(J+{���+�|��8Q��\����͎���g��ޫ#-s\�F@�d��CR��4;��Y,⍾[4m�1��m�>��4�9B�� .�%�WTm�w�����Z։n��+�vD! :�ZO��7����t�.�\����u0 x��K>Et61�g$�B�!@!@!T ���%�̭/ ��]Ȁy+)IF>�����Ů����;�+Y�p��xzqY�3��!r|�L����͛��O�ތ�G�{��snV/9���v{Cd˲�~JE�*T�Q����[�G���z?{� �T��pg�H�;��ϊzBHP�m�6��`�>�n>��V�G� qEh��S� ��h�rZ߭�ю+$g�� ����xU:3�4��M{�f���^'�ܰ�}�7�y$�u�V��R�s@z�Z05��4d�i�&�Эe-��6�5���]�v�a# %dU']\|��vv���~����TuN`u ��I�gn'������C\#�|j�>�t��"�3�� ��$��̈́��1��K�yƤ��;�'⦉�A ��4�B1*�J���ft{I}fɓ�� �n��n!>ۦ!���\�n�i��& �s���+>]%yŐ]�����G�8f(�m,v6�{s=� `�8:�`�G�;�à����6��`��?S(V�"6觼}��WW�lQ�p��J�l�ST]��0V��LX?��j�,��ԝc}��O�;C�)�v���,toe/�Ԩ�D��hhFí] K&��H륎l�b�+'�.��Hޛl�> j�c�woI�����`+�Jݶ�D���z'S�÷/�r�_�[A�i��7v��w/��@ ~��T�pɼ� ^�)�z34��$D ��R=�l�[�j�a��FGT&�ŧ6��V��H�S�ttY]%o�3��y O�Y�4ⴹ�����D��F���94�zx���]{ܾ+7��*;P�nX�E I7t�XW���4�KD��i���epS��B72U{)B3cZ`nc;����բ��F�<�72Bמ������\k��F��?��$-�F�� ��Z,�fHۯhsM*�4��FY��@цbP�\�ÎW:s@JE�.�������b��N�D�$d��w�]49oi��Z|Ŏu���+}�WC�6b| Ǵ�P[��ps��Q��`�����=�G6�c� �R]N&�&�Fƣ������u�� i�Yњ[�������n���eu� ~,�=�k�4d��Bז�������;���Q�˴Ѱ1����()�yT}4�5�pd&�i5��n�ZvN������eÔ�br�~^�6�����v�m���:���Q=�8���O���Pw8��汴gL,Ґ�(�]{K��<�G�����+,o��3^�暃]��j �E �i#;�Դ v�iz3ƃ� Ap&X.Iڤч~�vNBAMy�uf [��u@�v��3�5��$�V���5�����9��i?�72:ր7U����S~�"y$��Rv�C�+�5�NЋh������ �mt�+�4��*$Ұ!�1�����z��:*��3�l�sX�1���h�J�g��`{NTj#h#Q���yL�y�ڜ1,}d��h�qh�p�Eq��g,�f�����(���]'�E]�����S?y���O��G˽G� ��?�͓�$�Ew�4{���I�i=��o#�Ը�(��Ru��[�L�ܾ݉���e��������_�g��?�\oY������U�}'����A� ��������DU�e�����M�o��/.S��o�aVsd��H��a�2v8�����V琽셤� .q�"m/P�$����u/i���V�;��:���­�2��W��.�{uÖ����>���ô1���'2w�i L2 �W(�}d�9����� H�A�= �!�) �d�\D�������ԥ�f���j F�AA�p 䴖u�G��XHd����L����xb7�Ly5�X�����׳�G������a�����4���t9=KjIµ+���c�x7�Q���ߊ�!T*��� :ߣ��nb)�h+E�����̓�k�k��+MU�X� ���=�Л�Է&����ݽ����;��]��Xwj:���b��C�Z�i�>9��sRf��h����� ��y�NF��%Mn\���*TԵD*Tڥ@�SP��SR�Ir< ാ��=���|��$��\&����ʟ� ���].=�������ĴsX���U�6�����*�]q�T���s�]¾�%��> Ș������غ�C)[�x$���WL�(,P�6�m�� mķ�5��MJ`QU����3A��k�W�6 ��� �����p8��5�G��ߑ�8�8�㹠rZ�hm nM��\�/��R�D�45�Z(� 70�B��Ktu�/=uƨ�:n;�y[�)�4���Hʂ6�[yƙō?�4��P��;��Ini���l�CJ��_I��j�,m��A�)N ;o�?�o�+�ש���BQ]t�i�h�RQKu!��j.�HIu�D�W�'�EٴT�il�}YV�>�{[��������uV?Gض���.>�Ol�/�+�݌@�;� ��Kr#��yͮ N��R��b�4��f�+�N�������q���๮��'Z�hid/-m�/�����y+)���4��,�X��p0dC^��A��jk�h�|.��6݆�lu2?T��р�55�MJ�3lWL]U���C�g ��o �W���~���˯P�@H��H�۲�(rjD��OE��E�����˻L�9r��J�q�����hΝ?�b�)9�%2��׍k�(��p��D��l��8„�m 3�J�U��b���� 鵝��C+����p��;���Ŧ��L�J�6��VF���_�U�z���ϴ���I�U��"�������.�@f�I��f��8�R.��i��6�X�V���Ү�Yg�u&GK,.oU#X�H܉qp7{�h����@)�$����j���`�I��5�lQ����⊪�y f� �CҤJ��!%�\��o�:#�V�DkpVI=���h9�n�� ˾�gcm20�����u�p�kȯSj���姫�z�N �և�K�lg}�a�ⴴ��8_#�Ɨ8�h�y�EzGz�#d�Z]V{��o1�6�2;nG�4� ��[�Ⴐ����$�W1�� cƾEJ��'��S��[��Z�(i=��j�skq����1�mOF�,� �h�ܕ��0��1�P�v�a��6�N��ӆI���Ln�1�1���滑�x�l�x7�v���y���X���-�)���W�]�uN�P� � ��y�(U� a���m h&k�����(������gk� �1��M(]��7�v� �xi�K,a„,y"������j��<6V���Wm�' �c[]N ����@ܹ'U1���R��@�SR�T$�J�� &G�\5�}��� �Z�w�O�yfy��7�\O�\�n���=��(�.��v�OK��:�����2Q�q�� x�.ӦhC��=IU�ƙ��h��' �)��R��E�g��cuG!�i�}X� [K*����+�m+���F-=a�H難�����5� �p�U\���fd��#��Nh!fݪT׶�*" adL����edr8��߼�d��PKt�{\ ^�{.i��P��$l)�[�Ǎi�j�Y���8 5>��e�p'�D,8G����C������Ň�5ql���+u � ����Tv7�`;FK�� c��Tƫ�zQ�>�3�;���1�V��N>R�Ň�G'/�?�ƚZ�ˍI$�IQT�NB�2>m�6�o�K��rU�!��Ev�BiT�"�BH� � \ڧ!w2�VSKVt�D��k��p$�L��F�<QoG�� �����׍�9�Ts^���̞&L��Esx5��4�E�0�����VX�u~6�t<��sṷ~�t����O ������xR����Ů�\��Qk��� �'<��jpx���Go��R\�S.���Ë�ӯ#�: ���~�0'���t��ׁtsK��hd��4����=���^��{Z����i�EAS<|j㗔Q�E� �� b4���<��-KL�_��J6юÛoj�\�b�2m�9��Y��G�_������m�/�B����lo�H�aR93�o �=����Y#|�IBZ�h�c�5�a����sՈek���F �*N��$`sH ��2 �U7���?w+��:�!�t\�p�CP]x��c(�A)��Sj��qm> ���0:�c\�=��|����V��1�Q� ��j:�1 9c*�tx:�i�hAe p"��i��k�T�no�;�)Ri�w��WF�upJ��@�SR�pB@��6�j�R�Bˑ�W�WHv����o�v�8�uO��G`W3W.7����}:q�i=*�GĀ�,�7%(6��I�ݓ����xM�`8)����$��$�WfY,���64��4h�����^;(u$��^rf�ơ�3䎉�u�V_xg��9����N�р��ʐ59Q���4V[�4��M��X�L� 4纥5J� ����k�r4vdh����O*U�"�!����3C$�"��+G㌟6�G  �����Yt�Վ��2sN���ɉq�@#.�暁#?)��j5)[°�S1I��#��p�C�KKi#��'ǵ�^���/��LK[�7� �s�9�;ҭ�J���x�J)^�U�{'��EI����T4T�}�k�+ �~#��{j=�ﭑ��t�����\�A�/g�;���k��O��V��훧-Ή�k0|��� s����y.|G��W8���<έ�-��BKc�e�;��[_�+%g'���o��i�*V�@�#�TM��Ց�9��6��w ���ed��R l�N��M�)J������G�V�L�k?UQPK�#��(�/F᳓!d��dpȜ(���n��E���t� qX�"��Y#��t�}�`��v����FY�=҂ )`4|���]��xS. ȥr��ZFI�t�>�ƍMh��%{x0���͗� P�B�� � JS$U*B ���@!@!@!@QB!6��� ��-ςVM/F�µ��A�� �4�,�Yt�}k���X��6^�P�{��ӆV�&��u�F�v�Qmtg���g0��-.0�ݺ���jk��{�'j���H�W=�{��8ԯ.vd�$�Ҭkݺ%-ls�����|�Яn�A����dx9�g�x�Y��Ln$���)Z�sV4�cO�Y�F<~G��b��~�?� ���m%��w�џvH�)��bgH��,��f�%��B^�}��O�o�)��ү�����e�}۟Խ���.�c�$p������H�׆��u���5�x K#��.��P��i�vG0y4+��~�?�<1߳�O�~��-k�^�!|lq���q�HJZ�AT/S�Np�UgDXoG��E>;Q�y;_=�Xsy��C!��a�v�u��'9���k8v9�#��n���4 qћ���q x�nz��|���b�,�i�� ����x�we��R�EB!@$)Rn������z�x�F�-�pBF�8%E BD� �J��J��9%�<���.�Uͅ��Y)Y�$��j���b�7=�;qB���y�o �u�sV�^���qǷZF�t@�}nA�D�� ��!�k����6�C!Ƅސ���c��$/b� ֆ�ZA�P�t�yS��!e��!�!�!�!U )a�s($��7�sc�+�+��W�6y��Z�s]�k�k��P��Nٺ�[� ������zZ��X�PZ?) ��;u�\_K#w�~8�N�+A»n��lQ�]��$���]�IIC��#�kN ^�����C�<�i36���~ � ͺ?�Y�չ$o�� �Ů����^�����@ � �ZG�S�a��� m k�w �0�AA)�Ǔ,z�8�&�>��V0�Ƶw�ܵ����(7%U��-%��c�l�u�C{��&Yܻ^L�f���sZ֊�8�� 䬷[m���O�i�?x�\�L�g.{�+��1���\Ʀ�@ i�NB�s ��龝F�Yfi�� )���Cy\���\d��{��s�4��O*�N⤞�u�j.uMv⚄/���|ܮ�P�*���R � �!P$J���PMN@!*D��� �!%�D"��}��:�f�R��E�z�х�}RFS+�w1�� �x/7�O[v��^�������J�).���`����Hm�ROz'1���0�\���S٧��Q��g?W��ub{i��]ą��Ykhu�����c}���]|�*�'��ix�϶h|�*7�����!|��X�<2��H�g��k���=����8��4k1[v C/N���{Z p�ؘ�Mݧk�-��4������9B�v��y9r�^ɡt�v������4�� �V�^S�+��z�:��\�.�w�1�}X�ö���j�3ӿ��t��O!�_��C����&]����o��4 �����+���ľ�&Jw�X> �KO"��`��V �n=�a\{k?�UT�8%_F>aP�"�R ��@���P �P�B (Q�)�Oc��ÁBi ��� � � T!�R �F4�՟ q!����MN �w"|��Jr��j�7Wol�����C���R���1����[�x�B$?_����c�*n���i�W��������/(�ұ���ͻ#���q�H�� �L��V��u��/�^Ž8�Q���s�t���Zߎ�&�������y5ɖ�eA�f�7B� Y'xP�CBq`��C0ƻT�{��G�,�M� �B �#%�=�_Z��l��6<;�W�^$һߣM'G>�Nl~�x��T�5�z*AN ��Q�v~*D( d�ge���:³J��Pv&�\ ��j�F��4ێ��;A�9;楆F����ӟ-�{��-Mk@� ��*]�n��+ pp�MB�L��x�ɻ��Tdؾ���d���Fv�T��*;BBBD T!UҖ��3kG�L<胗^.q�r��^7��Wkh�3SX����U��v���7K�8��}h�̖��=K7G<�%���KJ������}^�T��/����d�c�f�*rBBBBB ��A�zF� �HBT �zi�ʗZ"���ƽkxH�v�? �C��%y�Mz1�8�aoٻ�h~ONƹ;$�^#�u�6!5��^���O�W1�.�]7F�`H��bw��\�GԮ�ݛ�p��]"�x{.�o�� �R5�S�i���څo��+��X;���Z2�M�*����FѬs^�l��9㓼�P����9���*E��cHQ�k�f�ٸs�Ժe���� ���\/N����>n?%��t���3��ަ-������´TV��1ߕ�� �=����؎ �(��} z|�T! �BD��E�4�d�\��T�R%Z@�!�* p�@�P� ���f��HF�/ԦM�&���! P"���T�A�У�g?����5^ �m� ��w#�����ndδ>9�m�����Ƹm����{z�o�;E�G��ݐ�g�>��`^Ch��^9�I�q>k��}%2��;Ee��q �i�� Y��8Uk� {g�=�2Q�pAM��Gխl|26X��y�8�TsUKT���z3�Yl��E�4�FV�]��A�~J�{��Od`9����}�q#kA����su��{.���Nװ�5��#"4\,Ӵ�qb9�=hZ� hv]�k�5���0�x�հ�+)2 R!C,�vNН��Ɂ��G��J�#� ���5�-f�=��{l�o`EA�*�2^��S�e� ��8!W6��4a��#��%Mn\���P�*)P�*D U��Ii`�I94�>M�Z�����6�k$y�KCԳ��5gl��dv�s$���W�~3�B?t���xooL�WC�z�tm���>�;G�i�z��}��M,�}�a���S��5�M q�:r�`!@!@!@!@!@!@!@��E�8q'!�=2��՝���Լ�=K���:�e�aX�A�489�c�j����^����EA0B��t}�I/�������a����<�r�9-6j�:��������+9�,"�� �������D������F{�=������t���P>�s=�?�Wn ����1�;T�Ŵ���j3�8|v��E����OS�Z�� �����-i�p��׆֓Q�Nn?/qǃ��껅���m� ��.�9�p �dAȮ?���B��0��ג=�L�6X�G.���Uev���$v����U/N]�:�T�uB�8_O��g�B�*D�6L�`��Dȃ.k?*�*D-!P� � D�F D�(���P��b�:��KI����#��+l��TB �B繬cK��5�hĹ�4s)��~��.jt��p �P�MGjPb��;ݹL���Α�&�|Խj���Y/:�/7�`] .��j+�y�^��"�[,���i�fY�s�ye��66��$V��;�W��蟭۠�f��d����R÷�;�X�.�:�����7���p�+�ccs�m ���(��fM�m���[,P0E ��|&)#!���� W"3"���aӯ��~� ����������hk�7�.f����*RK�����ߢ�IK~Z��]- G�TDӫi9�����o�Me�ء�9�Dz�$�8z��`@��k#�2� �^�C��Ѥ:�F�ܤ�� u�E��C������_m H� ��v?�m��W���.���8C��w�q澴��������$�T��Q��D�kFƁ�:E�g���u�GP�����;���yu�at.+�(�0s�y�?���{*G:��*k�E@�Ȃ����47N�J��UƐ�/�i#ۈ9�{��W��~.��Y�](׀施�[MU��Xu��7� B�T!"BD T!!!�Al�2F:7�9��X�qS��V� �m��$�2{.��89������,�������#d�#��]�����"tR �ÛN�4�!p�j7� l���G,&7bЇ��G G�'X�e��e���i9��x��#��D&�G`q�qR�|x+C��L��C�ѵ�7�#�1��:��F�fR�Ni��,�� TҔ��v)-�@�dto&�:��x���5�J�^^^?{�g.櫝R�M,���'b�r�c_?%�&��O]�H�D3R��5�����OBT����P�(�R �f�P�D*�,d�>7�NrUB�'jICِ��63����&��J�QD�J�E�e릊��t��xҍ���ܫU�I},�G >�����äu�Hb���#m���c7�$M &����Y;��دH�9饭���m��fN�/�5�`Z{ з���%�=� _[�u�{�{Ndv����kk�M6�p�'8H�ėd�%K��{F��>��9ͺ�lkh��n�N׹� ��.��h#G��� ��o��j�<ׇ &���0���R�3+�N���� ��4��kE�5~��:��5���A8�k!�c�c���i4�4T8ePuQ3E}� ~���GՏZ޺id��n!ΒS�2�٧|n��D�E#�}6^iY�O$���z�<�L��@VcQ�} t�i;`|U������H ���KC������Z��[\�7������^�����87ch��4��V��mC��y� ����81�������SPv?C�^8-��G Lmc 4k]V����` kj��cm|�2="���Z&��ZZ�� Mpk�ZV��Լ������7n ]�6���]���ˡԢ����.��M ���4{��V9��Z] d�ɥ#'�P Ay��ю�M�2e{#�ѭ܅M7*q���MN�v��I�HsIii����FE\q��諒*�-� f4� �5,�G�ZN׹� v��ql�#���G��=�|�t�q�U�$�¤�P��z7n�Ŗ)+RX���]� �5�;A�\ѕ��RBOݼ=����O����g�y�ˤ�f^�u8X-�fk�Zj�H�j��7��[uSr��]е��6,�M�ё�渐�iZjä�'d�\3�[�{��\���Б ��H���}㸡%�����i��R���U����P R!���?O�H u�[�Ok�C�=nŠ{O`�PO�+WN�YX�a�狍��5�+*|^����?Լ��n���I�v�vC�W�N�wh���u�6�^���H�� �`+UP������B?�+�n!"TFu�:;�*�ԴCxo,�q��&�4���ne>����L릏��#}���g�$�W�d����O�ZkC��;�г��;�dZ�aݶ�J`���=�c0���=��if����oٵ��Ӭs�. �sIk�X�=�0~#X:��q�yG�� Sh�[���u� -5i�GQ�E��вZE�Dq�ym��ਨߗ���+0��d����h:�|��F^�Qg�Ϡc\�a�^k�+�tz����f��U����q+ج�6F۱��h�Ɔ��'�Ayv�o���=��U�Y鹅��U�5��4{\ñ�->}�����##N��8x�sX�x�;��)�鯣�,��+g~�U�-9r!y�����~�>�h$e]��4^�9�qˎ�:l��Lb*�஻s�f,��ZL{Z�-�D%BH�R!*PN�j�)� �,X���D�.m,Œz�褕�[��:6WW$m�P�*U� �Ϊա�DJ,�J�!@�ZU�1VV�J� Hn��=Vq�KUa�*��U��aP�*���iCf��O�M��8��XK٘���S�=��lK��P ����,�ס"U�� �p�r#"3 #�J�>� $��,��ٚ�h!TB :����[���P���! 8"�!�M�T ��@�H�i;A��R���}��|�PaO)|�?Q����;#Оj�A2��kO�T�2�Cv o* �5����=��Axr��N3Qab�v��ඊ�N�����f��q��B��hWV��o��[p�B�U�`�F�YB��#��-4�p޳Ee٥c��ֶ�?j{QKќ����I�t��\e!�`����H�$��J��ؽ���q�.�|~_�˗�c�v�tf�k�b����iFKOgaܷ!���y�`��Nd� ���њe�Q��jy���������' ��|����Ci�T�)�"��PF�U�=��;�pۭ��u A�*2T!!!! �+I��v� �=D�`%$TBH� �񦲵t����K^�#�r;]�w��Y�lk&�Ĝ�㋜w�S�T>8�E�� ���FPIJ��M(�J�PR%B)r� p ��7�*D���;;8�_+}��?G�e�G��_�v(Ve~��}<���^�����`� �0�賭?Gv����s�m<׬ ��˔�f��^'i腽�ٞ�?�1�ɦ�*�a�<$�H��9��{�������T.��/�c�G�F4۫ܭ��K߳Ŏ���w�hV�����b�X�J�:5�ɟ,����$]�����߻|3x����y�+wG�p�%�V�����څ�r�~\�Q��%��չYѥ HH�*�1MS���Z�HJ��� P�6(�T))�@%H��!Q,L�h�q�P�U*˕U��<.��>#B�e ����:+�M���F��\��X� xK H¦SmK��֧,��[��,Rk�u��{.��5����@!@ �n?h�)Sm�x�(Zi�ܒ� VZB* Z��?/r?i���X0�"����t��y��F?N'��r\�.��c7UmN��a{ ���<�YF7 aZl'<�v�SO�w����ixރ^�v����޶}۽ҹ�Ci\J�^�:�h�g�5k,�>�X���/�ෂۅBBR�V���ɴV�� KLiN�]e#�@91�۷l�2�4�R�Ay�cuos�4.Y�|�"�\Mf����ku2��N<<�ޓ�?��H�ok#�&���@r ��(8���+N=ƴ4T묝�G%�ڨ}W���ݩ�NsH�Q5m��o|��ä́� ���ݑݚ�,V�L��5�9�c�����tn��\#2{�5�~T\98e�;z8��>�N��r�b� ��as#K6qB J������{��֣$#"�vYu^�YM��B�g��w��[�EB�@BHUEz�I��;@��H1�O�B���+Zi[C�?�w��`�B�{}���A�@7�P�@4���ɒ�r�d�D\Ƽ6[v�c�T V��s�*+te����Xk�r�f����������� hoXt��v{��{�q�Z|���)����-�y��� ����������鈕��)�� q:SQ$��5��8c�x���E�„l$� m/�J�"��Z�֙���1܆�oV�ު��N�J^+��z�:�����gY٭n�Vz���_�ӄ�+�����n��I,�[o����� Y��5��\m�b��1/cĮ��1� sh�I�Գ����.�Թw�n�K���Wڻ���XGS�:�\cv�-��%gYtV�&�v �rc��Gy[���U�5��.�4pc��M� �Fgvc h��G�FG�޹p۴u���۷kZ�V�������Q�u��S��ҧ�i����[��)~�ޏ_��Z�~>2��N���S?[O ��y�jk��8�lƮ|���#���T]lт'{�X��E�@{����c���dk:�M� ��|6Ԧb6QX��! �!*D��Ui�*�, R!eVXj�0�R�t�BsR�Q��FS��#=���}A]��Ϣٱ���w��%罽��QB� u��� -�x�(Zm}��ђ*��ڢ�9"Kȼ���q�q�-.<�W17q�����j�2V�������ǀ}��w�9��Nfh��ƃ̯?5�v�&ݭ����/�` g�<�Ȟ�qh�(�s��� �Q�M&~���q���.{ޱ;Gp�\J�N��z��G��}�:��Ē7���Ի+�i�(ro����6��(�RP`�4�����:�h�f� ��Z䫎� �-�g���8��~ �����q�ʮYLq�9,��Ӏ�FPǍݧ?2v-;4 ����$�gz��g m5�����V�c#Ŗ[�T�u=�YV�mq&�qZeb�08 w��RX�t�����mܝ�( iy��#0ѫ��֛M+��7X/�6��V�5�2�=�8�F Iߏ%cGC� ���м�������i�oX�M�aROy����vn.Y�����ol���f������ra��c�Ifsy����p���pW肼�e�w^�p��PT�N[�XY.���i��&�����8+V;[%e���� � Yi��vEH�é�� �S�0���+�Ll������i���M%�Xv:R+��^Y�@ޖ���!���Ni�/���4d��T$�@�M��ȣ�n�"��0斜������h�̔ޕ�i]u��%�7��� ����|�:���+xr���sϋ ���0�#�ˢ���@��,;�1�cZoґ���Z�WmV[�1�rD潍����o4���M֍�Ecv����_�q��g�(h��#� �X����A1a]s�3�U�,f�M�1��ch{��\��s�vF e��u���Q�7o�W.|򚩏���6� �ݩoi�P��p{Mx�,��@�flvGL�5βFe��ը5ִ����(��Ȭ�˖V���?�"�w�c��d��#�|�����GZ��9�vx��������/�X�+ a%��^>AX�[�ȥ�[�ȫy���x0�����D"7�q8��>��7��A sZ^{�n_-�ڇ�� �¸��'ZݾE'ZݾE\���j��a��= �kv�u���Wd� D�����$0ct1{�ɣd id���..�h$�p��YQ�<��hq���f�N�uQ\f�9]E���B\��<������ �V�e�ȠJݾEzdy�=7�n�"���|�!h�����ȣ�n�"�?Ih+5�Rx"�{�/��x�;L}��٤|S]Yb>=��W�u���Q}�|����n��΋�`�pVF�"��0�������+Mtf�k��]������Ϊ̇��$+�4�с�$��������y���HX�C����*�y�E�v+%H��R�$����Z�FBUWaP����~G���=�*�,BT�ZTX�෋5"�GjNs���R��A�'ih?����Ay��DB���X�ʏ?�!����Bm��Šz/�_ ���%���A�[��;����� N���