Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Alexey Dobriyan |
77 |
60.16% |
1 |
10.00% |
| Heiko Carstens |
19 |
14.84% |
1 |
10.00% |
| Yang Shi |
10 |
7.81% |
1 |
10.00% |
| Eric W. Biedermann |
8 |
6.25% |
1 |
10.00% |
| Rik Van Riel |
5 |
3.91% |
1 |
10.00% |
| Mike Rapoport |
4 |
3.12% |
2 |
20.00% |
| Ben Dooks |
3 |
2.34% |
1 |
10.00% |
| Greg Kroah-Hartman |
1 |
0.78% |
1 |
10.00% |
| Michel Lespinasse |
1 |
0.78% |
1 |
10.00% |
| Total |
128 |
|
10 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/mm_types.h>
#include <linux/rbtree.h>
#include <linux/rwsem.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/cpumask.h>
#include <linux/mman.h>
#include <linux/pgtable.h>
#include <linux/atomic.h>
#include <linux/user_namespace.h>
#include <asm/mmu.h>
#ifndef INIT_MM_CONTEXT
#define INIT_MM_CONTEXT(name)
#endif
/*
* For dynamically allocated mm_structs, there is a dynamically sized cpumask
* at the end of the structure, the size of which depends on the maximum CPU
* number the system can see. That way we allocate only as much memory for
* mm_cpumask() as needed for the hundreds, or thousands of processes that
* a system typically runs.
*
* Since there is only one init_mm in the entire system, keep it simple
* and size this cpu_bitmask to NR_CPUS.
*/
struct mm_struct init_mm = {
.mm_rb = RB_ROOT,
.pgd = swapper_pg_dir,
.mm_users = ATOMIC_INIT(2),
.mm_count = ATOMIC_INIT(1),
MMAP_LOCK_INITIALIZER(init_mm)
.page_table_lock = __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
.arg_lock = __SPIN_LOCK_UNLOCKED(init_mm.arg_lock),
.mmlist = LIST_HEAD_INIT(init_mm.mmlist),
.user_ns = &init_user_ns,
.cpu_bitmap = CPU_BITS_NONE,
INIT_MM_CONTEXT(init_mm)
};