btrfs: Refactor unclustered extent allocation into find_free_extent_unclustered()

This patch will extract unclsutered extent allocation code into
find_free_extent_unclustered().

And this helper function will use return value to indicate what to do
next.

This should make find_free_extent() a little easier to read.

Signed-off-by: Qu Wenruo <[email protected]>
Reviewed-by: Su Yue <[email protected]>
Reviewed-by: Josef Bacik <[email protected]>
[Update merge conflict with fb5c39d7a887 ("btrfs: don't use ctl->free_space for max_extent_size")]
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>

0 files changed, 0 insertions, 0 deletions