btrfs: make state preallocation more speculative in __set_extent_bit

Similar to __clear_extent_bit, do not fail if the state preallocation
fails as we might not need it. One less BUG_ON.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-04-27 01:03:45 +02:00
commit 059f791c6b