linux-imx

// SPDX-License-Identifier: GPL-2.0

#include <linux/fs.h>

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/mm.h>

#include <linux/hugetlb.h>

#include <linux/mman.h>

#include <linux/mmzone.h>

#include <linux/proc_fs.h>

#include <linux/percpu.h>

#include <linux/quicklist.h>

#include <linux/seq_file.h>

#include <linux/swap.h>

#include <linux/vmstat.h>

#include <linux/atomic.h>

#include <linux/vmalloc.h>

#ifdef CONFIG_CMA

#include <linux/cma.h>

#endif

#include <asm/page.h>

#include <asm/pgtable.h>

#include "internal.h"

​

void __attribute__((weak)) arch_report_meminfo(struct seq_file *m)

{

}

​

static void show_val_kb(struct seq_file *m, const char *s, unsigned long num)

{

    seq_put_decimal_ull_width(m, s, num << (PAGE_SHIFT - 10), 8);

    seq_write(m, " kB\n", 4);

}

​

static int meminfo_proc_show(struct seq_file *m, void *v)

{

    struct sysinfo i;

    unsigned long committed;

    long cached;

    long available;

    unsigned long pages[NR_LRU_LISTS];

    unsigned long sreclaimable, sunreclaim;

    int lru;

​

    si_meminfo(&i);

    si_swapinfo(&i);

    committed = percpu_counter_read_positive(&vm_committed_as);

​

    cached = global_node_page_state(NR_FILE_PAGES) -

            total_swapcache_pages() - i.bufferram;

    if (cached < 0)

        cached = 0;

​

    for (lru = LRU_BASE; lru < NR_LRU_LISTS; lru++)

        pages[lru] = global_node_page_state(NR_LRU_BASE + lru);

​

    available = si_mem_available();

    sreclaimable = global_node_page_state(NR_SLAB_RECLAIMABLE);

    sunreclaim = global_node_page_state(NR_SLAB_UNRECLAIMABLE);

​

    show_val_kb(m, "MemTotal:       ", i.totalram);

    show_val_kb(m, "MemFree:        ", i.freeram);

    show_val_kb(m, "MemAvailable:   ", available);

    show_val_kb(m, "Buffers:        ", i.bufferram);