local_add
local_add(head - old, &bb->data_size);
local_add(base - old, &buf->data_size);
#define __local_add(i, l) local_add((i), (l))
#define local64_add(i,l) local_add((i),(&(l)->a))
local_add(rb->watermark, &rb->wakeup);
local_add(page_entries, &cpu_buffer->overrun);
local_add(entries, &cpu_buffer->overrun);
local_add(bsize - tail, &cpu_buffer->entries_bytes);
local_add(info->length, &cpu_buffer->entries_bytes);
local_add(RB_MISSED_STORED, &bpage->commit);
local_add(RB_MISSED_EVENTS, &bpage->commit);
local_add(RB_MISSED_STORED, &bpage->commit);
local_add(RB_MISSED_EVENTS, &bpage->commit);