2 #include <linux/hugetlb.h>
3 #include <linux/mount.h>
4 #include <linux/seq_file.h>
6 #include <asm/uaccess.h>
9 char *task_mem(struct mm_struct *mm, char *buffer)
11 unsigned long data, text, lib;
13 data = mm->total_vm - mm->shared_vm - mm->stack_vm;
14 text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> 10;
15 lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text;
16 buffer += sprintf(buffer,
25 (mm->total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
26 mm->locked_vm << (PAGE_SHIFT-10),
27 mm->rss << (PAGE_SHIFT-10),
28 data << (PAGE_SHIFT-10),
29 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
30 (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10);
34 unsigned long task_vsize(struct mm_struct *mm)
36 return PAGE_SIZE * mm->total_vm;
39 int task_statm(struct mm_struct *mm, int *shared, int *text,
40 int *data, int *resident)
42 *shared = mm->rss - mm->anon_rss;
43 *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK))
45 *data = mm->total_vm - mm->shared_vm;
50 int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount **mnt)
52 struct vm_area_struct * vma;
54 struct task_struct *task = proc_task(inode);
55 struct mm_struct * mm = get_task_mm(task);
59 down_read(&mm->mmap_sem);
63 if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file)
69 *mnt = mntget(vma->vm_file->f_vfsmnt);
70 *dentry = dget(vma->vm_file->f_dentry);
74 up_read(&mm->mmap_sem);
80 static int show_map(struct seq_file *m, void *v)
82 struct vm_area_struct *map = v;
83 struct file *file = map->vm_file;
84 int flags = map->vm_flags;
85 unsigned long ino = 0;
90 struct inode *inode = map->vm_file->f_dentry->d_inode;
91 dev = inode->i_sb->s_dev;
95 seq_printf(m, "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n",
98 flags & VM_READ ? 'r' : '-',
99 flags & VM_WRITE ? 'w' : '-',
100 flags & VM_EXEC ? 'x' : '-',
101 flags & VM_MAYSHARE ? 's' : 'p',
102 map->vm_pgoff << PAGE_SHIFT,
103 MAJOR(dev), MINOR(dev), ino, &len);
106 len = 25 + sizeof(void*) * 6 - len;
109 seq_printf(m, "%*c", len, ' ');
110 seq_path(m, file->f_vfsmnt, file->f_dentry, "");
116 static void *m_start(struct seq_file *m, loff_t *pos)
118 struct task_struct *task = m->private;
119 struct mm_struct *mm = get_task_mm(task);
120 struct vm_area_struct * map;
126 down_read(&mm->mmap_sem);
131 up_read(&mm->mmap_sem);
134 map = get_gate_vma(task);
139 static void m_stop(struct seq_file *m, void *v)
141 struct task_struct *task = m->private;
142 struct vm_area_struct *map = v;
143 if (map && map != get_gate_vma(task)) {
144 struct mm_struct *mm = map->vm_mm;
145 up_read(&mm->mmap_sem);
150 static void *m_next(struct seq_file *m, void *v, loff_t *pos)
152 struct task_struct *task = m->private;
153 struct vm_area_struct *map = v;
158 if (map != get_gate_vma(task))
159 return get_gate_vma(task);
163 struct seq_operations proc_pid_maps_op = {