182 строки
5.3 KiB
C
182 строки
5.3 KiB
C
#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/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)
|
|
{
|
|
char v[32];
|
|
static const char blanks[7] = {' ', ' ', ' ', ' ',' ', ' ', ' '};
|
|
int len;
|
|
|
|
len = num_to_str(v, sizeof(v), num << (PAGE_SHIFT - 10));
|
|
|
|
seq_write(m, s, 16);
|
|
|
|
if (len > 0) {
|
|
if (len < 8)
|
|
seq_write(m, blanks, 8 - len);
|
|
|
|
seq_write(m, v, len);
|
|
}
|
|
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];
|
|
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();
|
|
|
|
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);
|
|
show_val_kb(m, "Cached: ", cached);
|
|
show_val_kb(m, "SwapCached: ", total_swapcache_pages());
|
|
show_val_kb(m, "Active: ", pages[LRU_ACTIVE_ANON] +
|
|
pages[LRU_ACTIVE_FILE]);
|
|
show_val_kb(m, "Inactive: ", pages[LRU_INACTIVE_ANON] +
|
|
pages[LRU_INACTIVE_FILE]);
|
|
show_val_kb(m, "Active(anon): ", pages[LRU_ACTIVE_ANON]);
|
|
show_val_kb(m, "Inactive(anon): ", pages[LRU_INACTIVE_ANON]);
|
|
show_val_kb(m, "Active(file): ", pages[LRU_ACTIVE_FILE]);
|
|
show_val_kb(m, "Inactive(file): ", pages[LRU_INACTIVE_FILE]);
|
|
show_val_kb(m, "Unevictable: ", pages[LRU_UNEVICTABLE]);
|
|
show_val_kb(m, "Mlocked: ", global_zone_page_state(NR_MLOCK));
|
|
|
|
#ifdef CONFIG_HIGHMEM
|
|
show_val_kb(m, "HighTotal: ", i.totalhigh);
|
|
show_val_kb(m, "HighFree: ", i.freehigh);
|
|
show_val_kb(m, "LowTotal: ", i.totalram - i.totalhigh);
|
|
show_val_kb(m, "LowFree: ", i.freeram - i.freehigh);
|
|
#endif
|
|
|
|
#ifndef CONFIG_MMU
|
|
show_val_kb(m, "MmapCopy: ",
|
|
(unsigned long)atomic_long_read(&mmap_pages_allocated));
|
|
#endif
|
|
|
|
show_val_kb(m, "SwapTotal: ", i.totalswap);
|
|
show_val_kb(m, "SwapFree: ", i.freeswap);
|
|
show_val_kb(m, "Dirty: ",
|
|
global_node_page_state(NR_FILE_DIRTY));
|
|
show_val_kb(m, "Writeback: ",
|
|
global_node_page_state(NR_WRITEBACK));
|
|
show_val_kb(m, "AnonPages: ",
|
|
global_node_page_state(NR_ANON_MAPPED));
|
|
show_val_kb(m, "Mapped: ",
|
|
global_node_page_state(NR_FILE_MAPPED));
|
|
show_val_kb(m, "Shmem: ", i.sharedram);
|
|
show_val_kb(m, "Slab: ",
|
|
global_node_page_state(NR_SLAB_RECLAIMABLE) +
|
|
global_node_page_state(NR_SLAB_UNRECLAIMABLE));
|
|
|
|
show_val_kb(m, "SReclaimable: ",
|
|
global_node_page_state(NR_SLAB_RECLAIMABLE));
|
|
show_val_kb(m, "SUnreclaim: ",
|
|
global_node_page_state(NR_SLAB_UNRECLAIMABLE));
|
|
seq_printf(m, "KernelStack: %8lu kB\n",
|
|
global_zone_page_state(NR_KERNEL_STACK_KB));
|
|
show_val_kb(m, "PageTables: ",
|
|
global_zone_page_state(NR_PAGETABLE));
|
|
#ifdef CONFIG_QUICKLIST
|
|
show_val_kb(m, "Quicklists: ", quicklist_total_size());
|
|
#endif
|
|
|
|
show_val_kb(m, "NFS_Unstable: ",
|
|
global_node_page_state(NR_UNSTABLE_NFS));
|
|
show_val_kb(m, "Bounce: ",
|
|
global_zone_page_state(NR_BOUNCE));
|
|
show_val_kb(m, "WritebackTmp: ",
|
|
global_node_page_state(NR_WRITEBACK_TEMP));
|
|
show_val_kb(m, "CommitLimit: ", vm_commit_limit());
|
|
show_val_kb(m, "Committed_AS: ", committed);
|
|
seq_printf(m, "VmallocTotal: %8lu kB\n",
|
|
(unsigned long)VMALLOC_TOTAL >> 10);
|
|
show_val_kb(m, "VmallocUsed: ", 0ul);
|
|
show_val_kb(m, "VmallocChunk: ", 0ul);
|
|
|
|
#ifdef CONFIG_MEMORY_FAILURE
|
|
seq_printf(m, "HardwareCorrupted: %5lu kB\n",
|
|
atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10));
|
|
#endif
|
|
|
|
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
|
|
show_val_kb(m, "AnonHugePages: ",
|
|
global_node_page_state(NR_ANON_THPS) * HPAGE_PMD_NR);
|
|
show_val_kb(m, "ShmemHugePages: ",
|
|
global_node_page_state(NR_SHMEM_THPS) * HPAGE_PMD_NR);
|
|
show_val_kb(m, "ShmemPmdMapped: ",
|
|
global_node_page_state(NR_SHMEM_PMDMAPPED) * HPAGE_PMD_NR);
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMA
|
|
show_val_kb(m, "CmaTotal: ", totalcma_pages);
|
|
show_val_kb(m, "CmaFree: ",
|
|
global_zone_page_state(NR_FREE_CMA_PAGES));
|
|
#endif
|
|
|
|
hugetlb_report_meminfo(m);
|
|
|
|
arch_report_meminfo(m);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int meminfo_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, meminfo_proc_show, NULL);
|
|
}
|
|
|
|
static const struct file_operations meminfo_proc_fops = {
|
|
.open = meminfo_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int __init proc_meminfo_init(void)
|
|
{
|
|
proc_create("meminfo", 0, NULL, &meminfo_proc_fops);
|
|
return 0;
|
|
}
|
|
fs_initcall(proc_meminfo_init);
|