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# Date Author Comment
9f7965c7 10/14/2008 05:42 pm aliguori

Expand cache= option and use write-through caching by default

This patch changes the cache= option to accept none, writeback, or writethough
to control the host page cache behavior. By default, writethrough caching is
now used which internally is implemented by using O_DSYNC to open the disk...
a76bab49 09/22/2008 10:17 pm aliguori

Refactor AIO to allow multiple AIO implementations

This patch refactors the AIO layer to allow multiple AIO implementations. It's
only possible because of the recent signalfd() patch.

Right now, the AIO infrastructure is pretty specific to the block raw backend....
2acf5af0 09/16/2008 04:21 pm aliguori

block-raw is not a protocol

The protocol_name "file" was added to the block driver when async IO was
introduced. This can be used to select that a file is treated as a raw
device instead of probing for the type. However, protocols are not subject
to path interpretation which cases qcow2 images with raw base images to not...
03ff3ca3 09/15/2008 06:51 pm aliguori

Use common objects for qemu-img and qemu-nbd

Right now, we sprinkle #if defined(QEMU_IMG) && defined(QEMU_NBD) all over the
code. It's ugly and causes us to have to build multiple object files for
linking against qemu and the tools.

This patch introduces a new file, qemu-tool.c which contains enough for...
baf35cb9 09/10/2008 06:45 pm aliguori

Use signalfd() to work around signal/select race

This patch introduces signalfd() to work around the signal/select race in
checking for AIO completions. For platforms that don't support signalfd(), we
emulate it with threads.

There was a long discussion about this approach. I don't believe there are any...
33f00271 12/24/2007 04:33 pm balrog

Add "cache" parameter to "-drive" (Laurent Vivier).

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3848 c046a42c-6fe2-441c-8c8c-71466251a162
223d4670 12/15/2007 07:28 pm ths

Split block-raw.c into block-raw-posix.c and block-raw-win32.c, by
Anthony Liguori.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3814 c046a42c-6fe2-441c-8c8c-71466251a162