kobjsize
extern unsigned int kobjsize(const void *objp);
unsigned long size = kobjsize(mm);
size += kobjsize(vma);
size += kobjsize(region);
bytes += kobjsize(vma);
size = kobjsize(region);
sbytes += kobjsize(mm);
bytes += kobjsize(mm);
sbytes += kobjsize(current->fs);
bytes += kobjsize(current->fs);
sbytes += kobjsize(current->files);
bytes += kobjsize(current->files);
sbytes += kobjsize(current->sighand);
bytes += kobjsize(current->sighand);
bytes += kobjsize(current); /* includes kernel stack */
extern unsigned int kobjsize(const void *objp);