DECLARE_FIFO 439 drivers/md/bcache/bcache.h DECLARE_FIFO(long, free)[RESERVE_NR]; DECLARE_FIFO 440 drivers/md/bcache/bcache.h DECLARE_FIFO(long, free_inc); DECLARE_FIFO 117 drivers/md/bcache/journal.h DECLARE_FIFO(atomic_t, pin);