2 #include <linux/hugetlb.h>
3 #include <linux/seq_file.h>
5 #include <asm/uaccess.h>
7 char *task_mem(struct mm_struct *mm, char *buffer)
9 unsigned long data = 0, stack = 0, exec = 0, lib = 0;
10 struct vm_area_struct *vma;
12 down_read(&mm->mmap_sem);
13 for (vma = mm->mmap; vma; vma = vma->vm_next) {
14 unsigned long len = (vma->vm_end - vma->vm_start) >> 10;
17 if (vma->vm_flags & VM_GROWSDOWN)
21 if (vma->vm_flags & VM_WRITE)
23 if (vma->vm_flags & VM_EXEC) {
25 if (vma->vm_flags & VM_EXECUTABLE)
30 buffer += sprintf(buffer,
38 mm->total_vm << (PAGE_SHIFT-10),
39 mm->locked_vm << (PAGE_SHIFT-10),
40 mm->rss << (PAGE_SHIFT-10),
43 up_read(&mm->mmap_sem);
47 unsigned long task_vsize(struct mm_struct *mm)
49 return PAGE_SIZE * mm->total_vm;
52 int task_statm(struct mm_struct *mm, int *shared, int *text,
53 int *data, int *resident)
55 struct vm_area_struct *vma;
59 for (vma = mm->mmap; vma; vma = vma->vm_next) {
60 int pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
63 if (is_vm_hugetlb_page(vma)) {
64 if (!(vma->vm_flags & VM_DONTCOPY))
70 if (vma->vm_flags & VM_EXECUTABLE)
79 static int show_map(struct seq_file *m, void *v)
81 struct vm_area_struct *map = v;
82 struct file *file = map->vm_file;
83 int flags = map->vm_flags;
84 unsigned long ino = 0;
89 struct inode *inode = map->vm_file->f_dentry->d_inode;
90 dev = inode->i_sb->s_dev;
94 seq_printf(m, "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n",
97 flags & VM_READ ? 'r' : '-',
98 flags & VM_WRITE ? 'w' : '-',
99 flags & VM_EXEC ? 'x' : '-',
100 flags & VM_MAYSHARE ? 's' : 'p',
101 map->vm_pgoff << PAGE_SHIFT,
102 MAJOR(dev), MINOR(dev), ino, &len);
105 len = 25 + sizeof(void*) * 6 - len;
108 seq_printf(m, "%*c", len, ' ');
109 seq_path(m, file->f_vfsmnt, file->f_dentry, "");
115 static void *m_start(struct seq_file *m, loff_t *pos)
117 struct task_struct *task = m->private;
118 struct mm_struct *mm = get_task_mm(task);
119 struct vm_area_struct * map;
125 down_read(&mm->mmap_sem);
130 up_read(&mm->mmap_sem);
133 map = get_gate_vma(task);
138 static void m_stop(struct seq_file *m, void *v)
140 struct task_struct *task = m->private;
141 struct vm_area_struct *map = v;
142 if (map && map != get_gate_vma(task)) {
143 struct mm_struct *mm = map->vm_mm;
144 up_read(&mm->mmap_sem);
149 static void *m_next(struct seq_file *m, void *v, loff_t *pos)
151 struct task_struct *task = m->private;
152 struct vm_area_struct *map = v;
157 if (map != get_gate_vma(task))
158 return get_gate_vma(task);
162 struct seq_operations proc_pid_maps_op = {