Release 4.7 fs/proc/meminfo.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 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;
/*
* display in kilobytes.
*/
#define K(x) ((x) << (PAGE_SHIFT - 10))
si_meminfo(&i);
si_swapinfo(&i);
committed = percpu_counter_read_positive(&vm_committed_as);
cached = global_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_page_state(NR_LRU_BASE + lru);
available = si_mem_available();
/*
* Tagged format, for easy grepping and expansion.
*/
seq_printf(m,
"MemTotal: %8lu kB\n"
"MemFree: %8lu kB\n"
"MemAvailable: %8lu kB\n"
"Buffers: %8lu kB\n"
"Cached: %8lu kB\n"
"SwapCached: %8lu kB\n"
"Active: %8lu kB\n"
"Inactive: %8lu kB\n"
"Active(anon): %8lu kB\n"
"Inactive(anon): %8lu kB\n"
"Active(file): %8lu kB\n"
"Inactive(file): %8lu kB\n"
"Unevictable: %8lu kB\n"
"Mlocked: %8lu kB\n"
#ifdef CONFIG_HIGHMEM
"HighTotal: %8lu kB\n"
"HighFree: %8lu kB\n"
"LowTotal: %8lu kB\n"
"LowFree: %8lu kB\n"
#endif
#ifndef CONFIG_MMU
"MmapCopy: %8lu kB\n"
#endif
"SwapTotal: %8lu kB\n"
"SwapFree: %8lu kB\n"
"Dirty: %8lu kB\n"
"Writeback: %8lu kB\n"
"AnonPages: %8lu kB\n"
"Mapped: %8lu kB\n"
"Shmem: %8lu kB\n"
"Slab: %8lu kB\n"
"SReclaimable: %8lu kB\n"
"SUnreclaim: %8lu kB\n"
"KernelStack: %8lu kB\n"
"PageTables: %8lu kB\n"
#ifdef CONFIG_QUICKLIST
"Quicklists: %8lu kB\n"
#endif
"NFS_Unstable: %8lu kB\n"
"Bounce: %8lu kB\n"
"WritebackTmp: %8lu kB\n"
"CommitLimit: %8lu kB\n"
"Committed_AS: %8lu kB\n"
"VmallocTotal: %8lu kB\n"
"VmallocUsed: %8lu kB\n"
"VmallocChunk: %8lu kB\n"
#ifdef CONFIG_MEMORY_FAILURE
"HardwareCorrupted: %5lu kB\n"
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
"AnonHugePages: %8lu kB\n"
#endif
#ifdef CONFIG_CMA
"CmaTotal: %8lu kB\n"
"CmaFree: %8lu kB\n"
#endif
,
K(i.totalram),
K(i.freeram),
K(available),
K(i.bufferram),
K(cached),
K(total_swapcache_pages()),
K(pages[LRU_ACTIVE_ANON] + pages[LRU_ACTIVE_FILE]),
K(pages[LRU_INACTIVE_ANON] + pages[LRU_INACTIVE_FILE]),
K(pages[LRU_ACTIVE_ANON]),
K(pages[LRU_INACTIVE_ANON]),
K(pages[LRU_ACTIVE_FILE]),
K(pages[LRU_INACTIVE_FILE]),
K(pages[LRU_UNEVICTABLE]),
K(global_page_state(NR_MLOCK)),
#ifdef CONFIG_HIGHMEM
K(i.totalhigh),
K(i.freehigh),
K(i.totalram-i.totalhigh),
K(i.freeram-i.freehigh),
#endif
#ifndef CONFIG_MMU
K((unsigned long) atomic_long_read(&mmap_pages_allocated)),
#endif
K(i.totalswap),
K(i.freeswap),
K(global_page_state(NR_FILE_DIRTY)),
K(global_page_state(NR_WRITEBACK)),
K(global_page_state(NR_ANON_PAGES)),
K(global_page_state(NR_FILE_MAPPED)),
K(i.sharedram),
K(global_page_state(NR_SLAB_RECLAIMABLE) +
global_page_state(NR_SLAB_UNRECLAIMABLE)),
K(global_page_state(NR_SLAB_RECLAIMABLE)),
K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
global_page_state(NR_KERNEL_STACK) * THREAD_SIZE / 1024,
K(global_page_state(NR_PAGETABLE)),
#ifdef CONFIG_QUICKLIST
K(quicklist_total_size()),
#endif
K(global_page_state(NR_UNSTABLE_NFS)),
K(global_page_state(NR_BOUNCE)),
K(global_page_state(NR_WRITEBACK_TEMP)),
K(vm_commit_limit()),
K(committed),
(unsigned long)VMALLOC_TOTAL >> 10,
0ul, // used to be vmalloc 'used'
0ul // used to be vmalloc 'largest_chunk'
#ifdef CONFIG_MEMORY_FAILURE
, atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
, K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
HPAGE_PMD_NR)
#endif
#ifdef CONFIG_CMA
, K(totalcma_pages)
, K(global_page_state(NR_FREE_CMA_PAGES))
#endif
);
hugetlb_report_meminfo(m);
arch_report_meminfo(m);
return 0;
#undef K
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alexey dobriyan | alexey dobriyan | 450 | 75.38% | 1 | 5.56% |
| pintu kumar | pintu kumar | 25 | 4.19% | 1 | 5.56% |
| david howells | david howells | 24 | 4.02% | 2 | 11.11% |
| andi kleen | andi kleen | 21 | 3.52% | 1 | 5.56% |
| andrea arcangeli | andrea arcangeli | 21 | 3.52% | 1 | 5.56% |
| kosaki motohiro | kosaki motohiro | 19 | 3.18% | 3 | 16.67% |
| rik van riel | rik van riel | 14 | 2.35% | 1 | 5.56% |
| claudio scordino | claudio scordino | 8 | 1.34% | 1 | 5.56% |
| linus torvalds | linus torvalds | 4 | 0.67% | 1 | 5.56% |
| rafael aquini | rafael aquini | 3 | 0.50% | 1 | 5.56% |
| shaohua li | shaohua li | 2 | 0.34% | 1 | 5.56% |
| igor redko | igor redko | 2 | 0.34% | 1 | 5.56% |
| jerome marchand | jerome marchand | 2 | 0.34% | 1 | 5.56% |
| xishi qiu | xishi qiu | 1 | 0.17% | 1 | 5.56% |
| hugh dickins | hugh dickins | 1 | 0.17% | 1 | 5.56% |
| Total | 597 | 100.00% | 18 | 100.00% |
static int meminfo_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, meminfo_proc_show, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alexey dobriyan | alexey dobriyan | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alexey dobriyan | alexey dobriyan | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
fs_initcall(proc_meminfo_init);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alexey dobriyan | alexey dobriyan | 590 | 78.25% | 1 | 4.55% |
| pintu kumar | pintu kumar | 33 | 4.38% | 1 | 4.55% |
| david howells | david howells | 24 | 3.18% | 2 | 9.09% |
| andrea arcangeli | andrea arcangeli | 21 | 2.79% | 1 | 4.55% |
| andi kleen | andi kleen | 21 | 2.79% | 1 | 4.55% |
| kosaki motohiro | kosaki motohiro | 19 | 2.52% | 3 | 13.64% |
| rik van riel | rik van riel | 14 | 1.86% | 1 | 4.55% |
| claudio scordino | claudio scordino | 8 | 1.06% | 1 | 4.55% |
| kirill a. shutemov | kirill a. shutemov | 4 | 0.53% | 1 | 4.55% |
| linus torvalds | linus torvalds | 4 | 0.53% | 1 | 4.55% |
| rafael aquini | rafael aquini | 3 | 0.40% | 1 | 4.55% |
| joonsoo kim | joonsoo kim | 3 | 0.40% | 1 | 4.55% |
| igor redko | igor redko | 2 | 0.27% | 1 | 4.55% |
| jerome marchand | jerome marchand | 2 | 0.27% | 1 | 4.55% |
| shaohua li | shaohua li | 2 | 0.27% | 1 | 4.55% |
| arun sharma | arun sharma | 1 | 0.13% | 1 | 4.55% |
| paul gortmaker | paul gortmaker | 1 | 0.13% | 1 | 4.55% |
| hugh dickins | hugh dickins | 1 | 0.13% | 1 | 4.55% |
| xishi qiu | xishi qiu | 1 | 0.13% | 1 | 4.55% |
| Total | 754 | 100.00% | 22 | 100.00% |
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