Contributors: 16
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Howells |
255 |
52.47% |
5 |
12.20% |
| Linus Torvalds (pre-git) |
73 |
15.02% |
17 |
41.46% |
| Christoph Hellwig |
42 |
8.64% |
2 |
4.88% |
| Al Viro |
38 |
7.82% |
2 |
4.88% |
| Andrew Morton |
31 |
6.38% |
3 |
7.32% |
| Andries E. Brouwer |
13 |
2.67% |
1 |
2.44% |
| Tetsuo Handa |
9 |
1.85% |
1 |
2.44% |
| Linus Torvalds |
8 |
1.65% |
2 |
4.88% |
| Clément Calmels |
5 |
1.03% |
1 |
2.44% |
| Amir Goldstein |
4 |
0.82% |
1 |
2.44% |
| Thomas Gleixner |
2 |
0.41% |
1 |
2.44% |
| Alexey Dobriyan |
2 |
0.41% |
1 |
2.44% |
| Uwe Kleine-König |
1 |
0.21% |
1 |
2.44% |
| Paul Gortmaker |
1 |
0.21% |
1 |
2.44% |
| Dave Jones |
1 |
0.21% |
1 |
2.44% |
| James Morris |
1 |
0.21% |
1 |
2.44% |
| Total |
486 |
|
41 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/* nommu.c: mmu-less memory info files
*
* Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mman.h>
#include <linux/proc_fs.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/pagemap.h>
#include <linux/swap.h>
#include <linux/smp.h>
#include <linux/seq_file.h>
#include <linux/hugetlb.h>
#include <linux/vmalloc.h>
#include <asm/tlb.h>
#include <asm/div64.h>
#include "internal.h"
/*
* display a single region to a sequenced file
*/
static int nommu_region_show(struct seq_file *m, struct vm_region *region)
{
unsigned long ino = 0;
struct file *file;
dev_t dev = 0;
int flags;
flags = region->vm_flags;
file = region->vm_file;
if (file) {
struct inode *inode = file_inode(region->vm_file);
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
}
seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
seq_printf(m,
"%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
region->vm_start,
region->vm_end,
flags & VM_READ ? 'r' : '-',
flags & VM_WRITE ? 'w' : '-',
flags & VM_EXEC ? 'x' : '-',
flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
((loff_t)region->vm_pgoff) << PAGE_SHIFT,
MAJOR(dev), MINOR(dev), ino);
if (file) {
seq_pad(m, ' ');
seq_path(m, file_user_path(file), "");
}
seq_putc(m, '\n');
return 0;
}
/*
* display a list of all the REGIONs the kernel knows about
* - nommu kernels have a single flat list
*/
static int nommu_region_list_show(struct seq_file *m, void *_p)
{
struct rb_node *p = _p;
return nommu_region_show(m, rb_entry(p, struct vm_region, vm_rb));
}
static void *nommu_region_list_start(struct seq_file *m, loff_t *_pos)
{
struct rb_node *p;
loff_t pos = *_pos;
down_read(&nommu_region_sem);
for (p = rb_first(&nommu_region_tree); p; p = rb_next(p))
if (pos-- == 0)
return p;
return NULL;
}
static void nommu_region_list_stop(struct seq_file *m, void *v)
{
up_read(&nommu_region_sem);
}
static void *nommu_region_list_next(struct seq_file *m, void *v, loff_t *pos)
{
(*pos)++;
return rb_next((struct rb_node *) v);
}
static const struct seq_operations proc_nommu_region_list_seqop = {
.start = nommu_region_list_start,
.next = nommu_region_list_next,
.stop = nommu_region_list_stop,
.show = nommu_region_list_show
};
static int __init proc_nommu_init(void)
{
proc_create_seq("maps", S_IRUGO, NULL, &proc_nommu_region_list_seqop);
return 0;
}
fs_initcall(proc_nommu_init);