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# Date Author Comment
d5124c00 09/12/2013 11:12 am Max Reitz

bdrv: Use "Error" for creating images

Add an Error ** parameter to BlockDriver.bdrv_create to allow more
specific error messages.

Signed-off-by: Max Reitz <>
015a1036 09/12/2013 11:12 am Max Reitz

bdrv: Use "Error" for opening images

Add an Error ** parameter to BlockDriver.bdrv_open and
BlockDriver.bdrv_file_open to allow more specific error messages.

Signed-off-by: Max Reitz <>
9faa574f 08/30/2013 04:28 pm Bharata B Rao

gluster: Abort on AIO completion failure

Currently if gluster AIO callback thread fails to notify the QEMU thread about
AIO completion, we try graceful recovery by marking the disk drive as
inaccessible. This error recovery code is race-prone as found by Asias and...
f2e5dca4 08/19/2013 04:52 pm Stefan Hajnoczi

aio: drop io_flush argument

The .io_flush() handler no longer exists and has no users. Drop the
io_flush argument to aio_set_fd_handler() and related functions.

The AioFlushEventNotifierHandler and AioFlushHandler typedefs are no
longer used and are dropped too....
372835fb 08/19/2013 04:51 pm Stefan Hajnoczi

block/gluster: drop qemu_gluster_aio_flush_cb()

Since .io_flush() is no longer called we do not need
qemu_gluster_aio_flush_cb() anymore. It turns out that qemu_aio_count
is unused now and can be dropped.

Thanks to Bharata B Rao <> for catching a...
42ec24e2 07/29/2013 06:07 pm Paolo Bonzini

gluster: Add image resize support

Implement .bdrv_truncate in GlusterFS block driver so that GlusterFS backend
can support image resizing.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Bharata B Rao <>
Tested-by: Bharata B Rao <>...
0c14fb47 07/19/2013 07:29 am Bharata B Rao

gluster: Add discard support for GlusterFS block driver.

Implement bdrv_aio_discard for gluster.

Signed-off-by: Bharata B Rao <>
Reviewed-by: Kevin Wolf <>
Signed-off-by: Stefan Hajnoczi <>
8ab6feec 06/28/2013 10:20 am Kevin Wolf

gluster: Return bdrv_has_zero_init = 0

GlusterFS volumes can be backed by block devices, in which case
bdrv_create() doesn't make sure that the image is zeroed out. It is
currently not possibly to detect whether a given image is backed by a
file or a block device, and incorrectly assuming that it is zeroed...
56d1b4d2 04/22/2013 12:34 pm Kevin Wolf

block: Remove filename parameter from .bdrv_file_open()

It is unused now in all block drivers.

Signed-off-by: Kevin Wolf <>
Reviewed-by: Eric Blake <>
b4894776 04/22/2013 11:27 am Kevin Wolf

gluster: Use bdrv_open options instead of filename

This is only to convert the internal interface that is used for passing
the "filename" to be parsed, but converting to actual fine grained
options is left for another day, as it doesn't look trivial.

Signed-off-by: Kevin Wolf <>...
787e4a85 03/22/2013 06:51 pm Kevin Wolf

block: Add options QDict to bdrv_file_open() prototypes

The new parameter is unused yet.

Signed-off-by: Kevin Wolf <>
Reviewed-by: Eric Blake <>
312fd5f2 02/11/2013 04:13 pm Markus Armbruster

error: Strip trailing '\n' from error string arguments (again)

Commit 6daf194d and be62a2eb got rid of a bunch, but they keep coming
back. Tracked down with this Coccinelle semantic patch:

r
    expression err, eno, cls, fmt;
    position p;
    @@
    (...
1de7afc9 12/19/2012 09:32 am Paolo Bonzini

misc: move include files to include/qemu/

Signed-off-by: Paolo Bonzini <>
737e150e 12/19/2012 09:31 am Paolo Bonzini

block: move include files to include/block/

Signed-off-by: Paolo Bonzini <>
d7331bed 11/14/2012 07:19 pm Stefan Hajnoczi

aio: rename AIOPool to AIOCBInfo

Now that AIOPool no longer keeps a freelist, it isn't really a "pool"
anymore. Rename it to AIOCBInfo and make it const since it no longer
needs to be modified.

Signed-off-by: Stefan Hajnoczi <>
Signed-off-by: Kevin Wolf <>
8d6d89cb 09/28/2012 06:58 pm Bharata B Rao

block: Support GlusterFS as a QEMU block backend.

This patch adds gluster as the new block backend in QEMU. This gives
QEMU the ability to boot VM images from gluster volumes. Its already
possible to boot from VM images on gluster volumes using FUSE mount, but...