tree 83887f41d8a876d919f74f83cda26eb18b10deca
parent a46d11a8b06dd0431a3888fbc4856ea13a8e634f
author Ilya Dryomov <idryomov@gmail.com> 1326744287 +0200
committer Ilya Dryomov <idryomov@gmail.com> 1326744287 +0200

Btrfs: make avail_*_alloc_bits fields dynamic

Currently when new chunks are created respective avail_alloc_bits field
is updated to reflect profiles of all chunks present in the system.
However when chunks are removed profile bits are never cleared.

This patch clears profile bit of respective avail_alloc_bits field when
the last chunk with that profile is removed.  Restriper needs this to
properly operate when "downgrading".

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>