Statistics
| Branch: | Revision:

root / block / qed-cluster.c @ a74cdab4

History | View | Annotate | Download (5.1 kB)

# Date Author Comment
21df65b6 04/13/2011 01:06 pm Anthony Liguori

qed: Add support for zero clusters

Zero clusters are similar to unallocated clusters except instead of reading
their value from a backing file when one is available, the cluster is always
read as zero.

This implements read support only. At this stage, QED will never write a...
298800ca 12/17/2010 05:11 pm Stefan Hajnoczi

qed: Table, L2 cache, and cluster functions

This patch adds code to look up data cluster offsets in the image via
the L1/L2 tables. The L2 tables are writethrough cached in memory for
performance (each read/write requires a lookup so it is essential to
cache the tables)....