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# Date Author Comment
1b40bbd1 01/31/2011 11:03 am Kevin Wolf

raw-win32: Fix bdrv_flush return value

Signed-off-by: Kevin Wolf <>
cfd07e7a 11/07/2010 05:10 pm Blue Swirl

Fix win32 build

Fix a return value change missed by
205ef7961f781496366e0a93a4ec621ad3724bd7.

Signed-off-by: Blue Swirl <>
205ef796 11/04/2010 01:52 pm Kevin Wolf

block: Allow bdrv_flush to return errors

This changes bdrv_flush to return 0 on success and -errno in case of failure.
It's a requirement for implementing proper error handle in users of bdrv_flush.

Signed-off-by: Kevin Wolf <>
Reviewed-by: Stefan Hajnoczi <>
336c1c12 08/03/2010 04:57 pm Kevin Wolf

block: Fix bdrv_has_zero_init

Assuming that any image on a block device is not properly zero-initialized is
actually wrong: Only raw images have this problem. Any other image format
shouldn't care about it, they initialize everything properly themselves....
84a12e66 05/03/2010 11:07 am Christoph Hellwig

block: separate raw images from the file protocol

We're running into various problems because the "raw" file access, which
is used internally by the various image formats is entangled with the
"raw" image format, which maps the VM view 1:1 to a file system....
66f82cee 05/03/2010 11:07 am Kevin Wolf

block: Open the underlying image file in generic code

Format drivers shouldn't need to bother with things like file names, but rather
just get an open BlockDriverState for the underlying protocol. This patch
introduces this behaviour for bdrv_open implementation. For protocols which...
9a2d77ad 01/26/2010 11:42 pm Christoph Hellwig

block: kill BDRV_O_CREAT

The BDRV_O_CREAT option is unused inside qemu and partially duplicates
the bdrv_create method. Remove it, and the -C option to qemu-io which
isn't used in qemu-iotests anyway.

Signed-off-by: Christoph Hellwig <>
Signed-off-by: Anthony Liguori <>
f5edb014 01/20/2010 04:25 pm Naphtali Sprei

Clean-up a little bit the RW related bits of BDRV_O_FLAGS. BDRV_O_RDONLY gone (and so is BDRV_O_ACCESS). Default value for bdrv_flags (0/zero) is READ-ONLY. Need to explicitly request READ-WRITE.

Instead of using the field 'readonly' of the BlockDriverState struct for passing the request,...
508c7cb3 06/15/2009 03:04 pm Christoph Hellwig

block: add bdrv_probe_device method

Add a bdrv_probe_device method to all BlockDriver instances implementing
host devices to move matching of host device types into the actual drivers.
For now we keep exacly the old matching behaviour based on the devices names,...
db08adf5 06/06/2009 06:38 pm Kevin Wolf

qemu-img: Print available options with -o ?

This patch adds a small help text to each of the options in the block drivers
which can be displayed by using qemu-img create -f fmt -o ?

Signed-off-by: Kevin Wolf <>
0e7e1989 05/22/2009 06:50 pm Kevin Wolf

Convert all block drivers to new bdrv_create

Now we can make use of the newly introduced option structures. Instead of
having bdrv_create carry more and more parameters (which are format specific in
most cases), just pass a option structure as defined by the driver itself....
dcc5e4a0 05/15/2009 01:03 am Anthony Liguori

Fix warning on WIN32

Signed-off-by: Anthony Liguori <>
019d6b8f 05/15/2009 12:13 am Anthony Liguori

Move block drivers into their own directory

Signed-off-by: Anthony Liguori <>