Function prototype or declaration at fs/btrfs/extent-tree.c, line 3751 References: fs/btrfs/extent-tree.c, line 504 fs/btrfs/extent-tree.c, line 2763 fs/btrfs/extent-tree.c, line 2769 fs/btrfs/extent-tree.c, line 3154 fs/btrfs/extent-tree.c, line 3181 fs/btrfs/extent-tree.c, line 3524 fs/btrfs/extent-tree.c, line 3751 fs/btrfs/extent-tree.c, line 5740 fs/btrfs/extent-tree.c, line 5752 fs/btrfs/extent-tree.c, line 6282 fs/btrfs/extent-tree.c, line 6381 fs/btrfs/extent-tree.c, line 7543 fs/btrfs/extent-tree.c, line 7601 fs/btrfs/extent-tree.c, line 7845 fs/btrfs/extent-tree.c, line 8060 fs/btrfs/extent-tree.c, line 8651