Statistics
| Branch: | Revision:

root / block / qed-table.c @ 2923d34f

History | View | Annotate | Download (8.7 kB)

# Date Author Comment
e4fc8781 10/05/2011 06:52 pm Stefan Hajnoczi

qed: fix use-after-free during l2 cache commit

QED's metadata caching strategy allows two parallel requests to race for
metadata lookup. The first one to complete will populate the metadata
cache and the second one will drop the data it just read in favor of the...
384acbf4 08/02/2011 04:53 pm Kevin Wolf

async: Remove AsyncContext

The purpose of AsyncContexts was to protect qcow and qcow2 against reentrancy
during an emulated bdrv_read/write (which includes a qemu_aio_wait() call and
can run AIO callbacks of different requests if it weren't for AsyncContexts)....
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)....