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;
}
unsigned long task_vsize(struct mm_struct *mm)
{
struct mm_tblock_struct *tbp;
unsigned long vsize = 0;
for (tbp = &mm->context.tblock; tbp; tbp = tbp->next) {
if (tbp->rblock)
vsize += kobjsize(tbp->rblock->kblock);
}
return vsize;
}
int task_statm(struct mm_struct *mm, int *shared, int *text,
int *data, int *resident)
{
struct mm_tblock_struct *tbp;
int size = kobjsize(mm);
for (tbp = &mm->context.tblock; tbp; tbp = tbp->next) {
if (tbp->next)
size += kobjsize(tbp->next);
if (tbp->rblock) {
size += kobjsize(tbp->rblock);
size += kobjsize(tbp->rblock->kblock);
}
}
size += (*text = mm->end_code - mm->start_code);
size += (*data = mm->start_stack - mm->start_data);
*resident = size;
return size;
}
/*
* 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 && atomic_read(¤t->fs->users) > 1)
sbytes += kobjsize(current->fs);
else
bytes += kobjsize(current->fs);
if (current->files && atomic_read(¤t->files->count) > 1)
sbytes += kobjsize(current->files);
else
bytes += kobjsize(current->files);
if (current->sighand && atomic_read(¤t->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);
}
/*
* Logic: we've got two memory sums for each process, "shared", and
* "non-shared". Shared memory may get counted more then once, for
* each process that owns it. Non-shared memory is counted
* accurately.
*/
char *task_mem(struct mm_struct *mm, char *buffer)
{
unsigned long bytes = 0, sbytes = 0, slack = 0;
struct mm_tblock_struct *tblock;
down_read(&mm->mmap_sem);
for (tblock = &mm->context.tblock; tblock; tblock = tblock->next) {
if (!tblock->rblock)
continue;
bytes += kobjsize(tblock);
if (atomic_read(&mm->mm_count) > 1 ||
tblock->rblock->refcount > 1) {
sbytes += kobjsize(tblock->rblock->kblock);
sbytes += kobjsize(tblock->rblock);
} else {
bytes += kobjsize(tblock->rblock->kblock);
bytes += kobjsize(tblock->rblock);
slack += kobjsize(tblock->rblock->kblock) -
tblock->rblock->size;
}
}
if (atomic_read(&mm->mm_count) > 1)
sbytes += kobjsize(mm);
else
bytes += kobjsize(mm);
if (current->fs && atomic_read(¤t->fs->count) > 1)
sbytes += kobjsize(current->fs);
else
bytes += kobjsize(current->fs);
if (current->files && atomic_read(¤t->files->count) > 1)
sbytes += kobjsize(current->files);
else
bytes += kobjsize(current->files);
if (current->sighand && atomic_read(¤t->sighand->count) > 1)
sbytes += kobjsize(current->sighand);
else
bytes += kobjsize(current->sighand);
bytes += kobjsize(current); /* includes kernel stack */
buffer += sprintf(buffer,
"Mem:\t%8lu bytes\n"
"Slack:\t%8lu bytes\n"
"Shared:\t%8lu bytes\n",
bytes, slack, sbytes);
up_read(&mm->mmap_sem);
return buffer;
}
