4 Commits

Author	SHA1	Message	Date
Zach Brown	967e90e5ef	Fix kvec overlapping comparison ... The comparisons were a bit wrong when comparing overlaping kvec endpoints. We want to compare the starts and ends with the ends and starts, respectively. Signed-off-by: Zach Brown <zab@versity.com>	2017-04-18 13:44:53 -07:00
Zach Brown	471405f8cd	Fix kvec iterators ... A few of the kvec iterators that work with byte offsets forgot to reset the offsets as they advanced to the next vec. These should probably be refactored into a set of iterator helpers. Signed-off-by: Zach Brown <zab@versity.com>	2017-04-18 13:44:52 -07:00
Zach Brown	c4954eb6f4	Add initial LSM write implementation ... Add all the core strutural components to be able to modify metadata. We modify items in fs write operations, track dirty items in the cache, allocate free segment block reagions, stream dirty items into segments, write out the segments, update the manifest to reference the written segments, and write out a new ring that has the new manifest. Signed-off-by: Zach Brown <zab@versity.com>	2017-04-18 13:42:30 -07:00
Zach Brown	43d0d44e48	Add initial LSM implementation ... Add the initial core components of the LSM implementation to be able to read the root inode: - bio.c: read big block regions - seg.c: cache logical segments - ring.c: read the manifest from storage - manifest.c: organize segments into an LSM - kvec.c: work with arbitrary memory vectors - item.c: cache fs metadata items read from segments Signed-off-by: Zach Brown <zab@versity.com>	2017-04-18 13:38:50 -07:00