struct vm_area_struct *vma)
{
unsigned long length = vma->vm_end - vma->vm_start;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;
struct vm_area_struct *vma)
{
unsigned long length = vma->vm_end - vma->vm_start;
struct lttng_kernel_ring_buffer_channel *chan = buf->backend.chan;