tree 63b14b1df54db25daa2ce46c8f42b5cff0ab1b89
parent bee63f40cb5f5e8ab2abfbc85acde99cc0acd4b5
author Nicholas Swenson <nks@daterainc.com> 1383875599 -0800
committer Kent Overstreet <kmo@daterainc.com> 1387232578 -0800

bcache: bugfix - moving_gc now moves only correct buckets

Removed gc_move_threshold because picking buckets only by
threshold could lead moving extra buckets (ei. if there are
buckets at the threshold that aren't supposed to be moved
do to space considerations).

This is replaced by a GC_MOVE bit in the gc_mark bitmask.
Now only marked buckets get moved.

Signed-off-by: Nicholas Swenson <nks@daterainc.com>
Signed-off-by: Kent Overstreet <kmo@daterainc.com>