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Zach BrownandZach Brown
a25b6324d2
The free_blocks counter in the super is meant to track the number of total blocks in the primary free extent index. Callers of extent manipulation were trying to keep it in sync with the extents. Segment allocation was allocating extents manually using a cursor. It forgot to update free_blocks. Segment freeing then freed the segment as an extent which did update free_blocks. This created ever accumulating free blocks over time which eventually pushed it greater than total blocks and caused df to report negative usage. This updates the free_blocks count in server extent io which is the only place we update the extent items themselves. This ensures that we'll keep the count in sync with the extent items. Callers don't have to worry about it. Signed-off-by: Zach Brown <zab@versity.com> T# with '#' will be ignored, and an empty message aborts the commit.