gc_merge_info 1370 drivers/md/bcache/btree.c struct gc_stat *gc, struct gc_merge_info *r) gc_merge_info 1617 drivers/md/bcache/btree.c struct gc_merge_info r[GC_MERGE_NODES]; gc_merge_info 1618 drivers/md/bcache/btree.c struct gc_merge_info *i, *last = r + ARRAY_SIZE(r) - 1;