btrfs_mod_outstanding_extents
btrfs_mod_outstanding_extents(inode, nr_extents);
btrfs_mod_outstanding_extents(inode, -num_extents);
btrfs_mod_outstanding_extents(inode, diff_num_extents);
btrfs_mod_outstanding_extents(inode, 1);
btrfs_mod_outstanding_extents(inode, -1);
btrfs_mod_outstanding_extents(inode, -1);
btrfs_mod_outstanding_extents(inode, num_extents);
btrfs_mod_outstanding_extents(inode, -num_extents);
btrfs_mod_outstanding_extents(inode, 1);
btrfs_mod_outstanding_extents(btrfs_inode, -1);