BTRFS_MAP_DISCARD 1320 fs/btrfs/extent-tree.c 	ret = btrfs_map_block(fs_info, BTRFS_MAP_DISCARD, bytenr, &num_bytes,
BTRFS_MAP_DISCARD 5984 fs/btrfs/volumes.c 	ASSERT(op != BTRFS_MAP_DISCARD);
BTRFS_MAP_DISCARD 6086 fs/btrfs/volumes.c 	if (op == BTRFS_MAP_DISCARD)
BTRFS_MAP_DISCARD  410 fs/btrfs/volumes.h 		return BTRFS_MAP_DISCARD;