Statistics
| Branch: | Revision:

root / block / qcow.c @ 205ef796

History | View | Annotate | Download (29.9 kB)

# Date Author Comment
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 <>
5e5557d9 06/22/2010 03:38 pm Kevin Wolf

qcow: Use bdrv_(p)write_sync for metadata writes

Use bdrv_(p)write_sync to ensure metadata integrity in case of a crash.

Signed-off-by: Kevin Wolf <>
b666d239 05/17/2010 11:20 am Kevin Wolf

block: Avoid unchecked casts for AIOCBs

Use container_of for one direction and &acb->common for the other one.

Signed-off-by: Kevin Wolf <>
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...
98c2b2f4 03/09/2010 07:23 pm Juan Quintela

qcow: return errno instead of -1

Signed-off-by: Juan Quintela <>
Signed-off-by: Anthony Liguori <>
3e1a8134 01/26/2010 10:59 pm Kirill A. Shutemov

block/qcow.c: fix warnings with _FORTIFY_SOURCE

CC block/qcow.o
cc1: warnings being treated as errors
block/qcow.c: In function 'qcow_create':
block/qcow.c:804: error: ignoring return value of 'write', declared with attribute warn_unused_result
block/qcow.c:806: error: ignoring return value of 'write', declared with attribute warn_unused_result...
f8012c13 01/14/2010 01:14 am Kevin Wolf

qcow/qcow2: implement bdrv_aio_flush

Now that we do not have to flush the backing device anymore implementing
the bdrv_aio_flush method for image formats is trivial.

[hch: forward ported to qemu mainline from a product tree]

Signed-off-by: Kevin Wolf <>...
c53ffce9 07/10/2009 09:44 pm Kevin Wolf

qcow1: Fix qcow_aio_writev

Pass is_write = 1 to qcow_aio_setup when writing.

Signed-off-by: Kevin Wolf <>
Signed-off-by: Anthony Liguori <>
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 <>
c16b5a2c 05/27/2009 05:46 pm Christoph Hellwig

fully split aio_pool from BlockDriver

Now that we have a separate aio pool structure we can remove those
aio pool details from BlockDriver.

Every driver supporting AIO now needs to declare a static AIOPool
with the aiocb size and the cancellation method. This cleans up the...
ad53089b 05/27/2009 05:45 pm Christoph Hellwig

qcow: add qcow_aio_setup helper

[this one is required for [PATCH] fully split aio_pool from BlockDriver,
sorry for not sending it out earlier]

Add a qcow_aio_setup helper to qcow to shared common code between
the aio_readv and aio_writev methods. Based on the function with...
ade40677 05/27/2009 05:45 pm Kevin Wolf

qcow/qcow2: Drop synchronous qcow_write()

There is only one (internal) user left and it can be switched to the normal
emulation provided in block.c

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

Move block drivers into their own directory

Signed-off-by: Anthony Liguori <>