btrfs: cleanup the target logic in __btrfs_block_rsv_release

This works for all callers already, but if we wanted to use the helper
for the global_block_rsv it would end up trying to refill itself.  Fix
the logic to be able to be used no matter which block rsv is passed in
to this helper.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2019-06-19 13:47:20 -04:00 • committed by David Sterba
commit fcec36224f