zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v4, handle last...

zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v4, handle last hole correctly when it is aligned)

zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v2, right end of the hole)

(cherry picked from commit ded252ea39093671390a526a76c6def61d7e6ac1)

zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v3, handle last hole correctly)

(cherry picked from commit 825cb15cd8a02a083042cc6fa12767ec1805f92d)

zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v4, handle last hole correctly when it is aligned)

zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v2, right end of the hole)

(cherry picked from commit ded252ea39093671390a526a76c6def61d7e6ac1)

zygo: btrfs: prefer aligned dev_extent holes when allocating chunks (v3, handle last hole correctly)

(cherry picked from commit 825cb15cd8a02a083042cc6fa12767ec1805f92d)

(cherry picked from commit 4ca76de09f5ac2c9354df4effd4bcea41830eb47)
(cherry picked from commit fd66ce7a8643932159cfee3fd539bfe8529ab35d)
(cherry picked from commit f2dd2c8c2401075b679971b4fc28379b6760fec3)