linux/fs/f2fs/shrinker.c

// SPDX-License-Identifier: GPL-2.0
/*
 * f2fs shrinker support
 *   the basic infra was copied from fs/ubifs/shrinker.c
 *
 * Copyright (c) 2015 Motorola Mobility
 * Copyright (c) 2015 Jaegeuk Kim <[email protected]>
 */
#include <linux/fs.h>
#include <linux/f2fs_fs.h>

#include "f2fs.h"
#include "node.h"

static LIST_HEAD(f2fs_list);
static DEFINE_SPINLOCK(f2fs_list_lock);
static unsigned int shrinker_run_no;

static unsigned long __count_nat_entries(struct f2fs_sb_info *sbi)
{ … }

static unsigned long __count_free_nids(struct f2fs_sb_info *sbi)
{ … }

static unsigned long __count_extent_cache(struct f2fs_sb_info *sbi,
					enum extent_type type)
{ … }

unsigned long f2fs_shrink_count(struct shrinker *shrink,
				struct shrink_control *sc)
{ … }

unsigned long f2fs_shrink_scan(struct shrinker *shrink,
				struct shrink_control *sc)
{ … }

void f2fs_join_shrinker(struct f2fs_sb_info *sbi)
{ … }

void f2fs_leave_shrinker(struct f2fs_sb_info *sbi)
{ … }