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-rw-r--r--ANDROID_3.4.5/fs/proc/task_nommu.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/ANDROID_3.4.5/fs/proc/task_nommu.c b/ANDROID_3.4.5/fs/proc/task_nommu.c
deleted file mode 100644
index 74fe164d..00000000
--- a/ANDROID_3.4.5/fs/proc/task_nommu.c
+++ /dev/null
@@ -1,318 +0,0 @@
-
-#include <linux/mm.h>
-#include <linux/file.h>
-#include <linux/fdtable.h>
-#include <linux/fs_struct.h>
-#include <linux/mount.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-#include "internal.h"
-
-/*
- * Logic: we've got two memory sums for each process, "shared", and
- * "non-shared". Shared memory may get counted more than once, for
- * each process that owns it. Non-shared memory is counted
- * accurately.
- */
-void task_mem(struct seq_file *m, struct mm_struct *mm)
-{
- struct vm_area_struct *vma;
- struct vm_region *region;
- struct rb_node *p;
- unsigned long bytes = 0, sbytes = 0, slack = 0, size;
-
- down_read(&mm->mmap_sem);
- for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {
- vma = rb_entry(p, struct vm_area_struct, vm_rb);
-
- bytes += kobjsize(vma);
-
- region = vma->vm_region;
- if (region) {
- size = kobjsize(region);
- size += region->vm_end - region->vm_start;
- } else {
- size = vma->vm_end - vma->vm_start;
- }
-
- if (atomic_read(&mm->mm_count) > 1 ||
- vma->vm_flags & VM_MAYSHARE) {
- sbytes += size;
- } else {
- bytes += size;
- if (region)
- slack = region->vm_end - vma->vm_end;
- }
- }
-
- if (atomic_read(&mm->mm_count) > 1)
- sbytes += kobjsize(mm);
- else
- bytes += kobjsize(mm);
-
- if (current->fs && current->fs->users > 1)
- sbytes += kobjsize(current->fs);
- else
- bytes += kobjsize(current->fs);
-
- if (current->files && atomic_read(&current->files->count) > 1)
- sbytes += kobjsize(current->files);
- else
- bytes += kobjsize(current->files);
-
- if (current->sighand && atomic_read(&current->sighand->count) > 1)
- sbytes += kobjsize(current->sighand);
- else
- bytes += kobjsize(current->sighand);
-
- bytes += kobjsize(current); /* includes kernel stack */
-
- seq_printf(m,
- "Mem:\t%8lu bytes\n"
- "Slack:\t%8lu bytes\n"
- "Shared:\t%8lu bytes\n",
- bytes, slack, sbytes);
-
- up_read(&mm->mmap_sem);
-}
-
-unsigned long task_vsize(struct mm_struct *mm)
-{
- struct vm_area_struct *vma;
- struct rb_node *p;
- unsigned long vsize = 0;
-
- down_read(&mm->mmap_sem);
- for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {
- vma = rb_entry(p, struct vm_area_struct, vm_rb);
- vsize += vma->vm_end - vma->vm_start;
- }
- up_read(&mm->mmap_sem);
- return vsize;
-}
-
-unsigned long task_statm(struct mm_struct *mm,
- unsigned long *shared, unsigned long *text,
- unsigned long *data, unsigned long *resident)
-{
- struct vm_area_struct *vma;
- struct vm_region *region;
- struct rb_node *p;
- unsigned long size = kobjsize(mm);
-
- down_read(&mm->mmap_sem);
- for (p = rb_first(&mm->mm_rb); p; p = rb_next(p)) {
- vma = rb_entry(p, struct vm_area_struct, vm_rb);
- size += kobjsize(vma);
- region = vma->vm_region;
- if (region) {
- size += kobjsize(region);
- size += region->vm_end - region->vm_start;
- }
- }
-
- *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK))
- >> PAGE_SHIFT;
- *data = (PAGE_ALIGN(mm->start_stack) - (mm->start_data & PAGE_MASK))
- >> PAGE_SHIFT;
- up_read(&mm->mmap_sem);
- size >>= PAGE_SHIFT;
- size += *text + *data;
- *resident = size;
- return size;
-}
-
-static void pad_len_spaces(struct seq_file *m, int len)
-{
- len = 25 + sizeof(void*) * 6 - len;
- if (len < 1)
- len = 1;
- seq_printf(m, "%*c", len, ' ');
-}
-
-/*
- * display a single VMA to a sequenced file
- */
-static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
- int is_pid)
-{
- struct mm_struct *mm = vma->vm_mm;
- struct proc_maps_private *priv = m->private;
- unsigned long ino = 0;
- struct file *file;
- dev_t dev = 0;
- int flags, len;
- unsigned long long pgoff = 0;
-
- flags = vma->vm_flags;
- file = vma->vm_file;
-
- if (file) {
- struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
- dev = inode->i_sb->s_dev;
- ino = inode->i_ino;
- pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT;
- }
-
- seq_printf(m,
- "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
- vma->vm_start,
- vma->vm_end,
- flags & VM_READ ? 'r' : '-',
- flags & VM_WRITE ? 'w' : '-',
- flags & VM_EXEC ? 'x' : '-',
- flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
- pgoff,
- MAJOR(dev), MINOR(dev), ino, &len);
-
- if (file) {
- pad_len_spaces(m, len);
- seq_path(m, &file->f_path, "");
- } else if (mm) {
- pid_t tid = vm_is_stack(priv->task, vma, is_pid);
-
- if (tid != 0) {
- pad_len_spaces(m, len);
- /*
- * Thread stack in /proc/PID/task/TID/maps or
- * the main process stack.
- */
- if (!is_pid || (vma->vm_start <= mm->start_stack &&
- vma->vm_end >= mm->start_stack))
- seq_printf(m, "[stack]");
- else
- seq_printf(m, "[stack:%d]", tid);
- }
- }
-
- seq_putc(m, '\n');
- return 0;
-}
-
-/*
- * display mapping lines for a particular process's /proc/pid/maps
- */
-static int show_map(struct seq_file *m, void *_p, int is_pid)
-{
- struct rb_node *p = _p;
-
- return nommu_vma_show(m, rb_entry(p, struct vm_area_struct, vm_rb),
- is_pid);
-}
-
-static int show_pid_map(struct seq_file *m, void *_p)
-{
- return show_map(m, _p, 1);
-}
-
-static int show_tid_map(struct seq_file *m, void *_p)
-{
- return show_map(m, _p, 0);
-}
-
-static void *m_start(struct seq_file *m, loff_t *pos)
-{
- struct proc_maps_private *priv = m->private;
- struct mm_struct *mm;
- struct rb_node *p;
- loff_t n = *pos;
-
- /* pin the task and mm whilst we play with them */
- priv->task = get_pid_task(priv->pid, PIDTYPE_PID);
- if (!priv->task)
- return ERR_PTR(-ESRCH);
-
- mm = mm_for_maps(priv->task);
- if (!mm || IS_ERR(mm)) {
- put_task_struct(priv->task);
- priv->task = NULL;
- return mm;
- }
- down_read(&mm->mmap_sem);
-
- /* start from the Nth VMA */
- for (p = rb_first(&mm->mm_rb); p; p = rb_next(p))
- if (n-- == 0)
- return p;
- return NULL;
-}
-
-static void m_stop(struct seq_file *m, void *_vml)
-{
- struct proc_maps_private *priv = m->private;
-
- if (priv->task) {
- struct mm_struct *mm = priv->task->mm;
- up_read(&mm->mmap_sem);
- mmput(mm);
- put_task_struct(priv->task);
- }
-}
-
-static void *m_next(struct seq_file *m, void *_p, loff_t *pos)
-{
- struct rb_node *p = _p;
-
- (*pos)++;
- return p ? rb_next(p) : NULL;
-}
-
-static const struct seq_operations proc_pid_maps_ops = {
- .start = m_start,
- .next = m_next,
- .stop = m_stop,
- .show = show_pid_map
-};
-
-static const struct seq_operations proc_tid_maps_ops = {
- .start = m_start,
- .next = m_next,
- .stop = m_stop,
- .show = show_tid_map
-};
-
-static int maps_open(struct inode *inode, struct file *file,
- const struct seq_operations *ops)
-{
- struct proc_maps_private *priv;
- int ret = -ENOMEM;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (priv) {
- priv->pid = proc_pid(inode);
- ret = seq_open(file, ops);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = priv;
- } else {
- kfree(priv);
- }
- }
- return ret;
-}
-
-static int pid_maps_open(struct inode *inode, struct file *file)
-{
- return maps_open(inode, file, &proc_pid_maps_ops);
-}
-
-static int tid_maps_open(struct inode *inode, struct file *file)
-{
- return maps_open(inode, file, &proc_tid_maps_ops);
-}
-
-const struct file_operations proc_pid_maps_operations = {
- .open = pid_maps_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
-const struct file_operations proc_tid_maps_operations = {
- .open = tid_maps_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-