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root / include / block @ 79761c66

Name Size
aio.h 8 kB
block.h 17.6 kB
block_int.h 16.5 kB
blockjob.h 8.2 kB
coroutine.h 5.9 kB
coroutine_int.h 1.9 kB
nbd.h 3.3 kB
qapi.h 2 kB
scsi.h 10.7 kB
snapshot.h 2.3 kB
thread-pool.h 1.1 kB

Latest revisions

# Date Author Comment
b681a1c7 07/29/2013 06:07 pm Benoît Canet

block: Repair the throttling code.

The throttling code was segfaulting since commit
02ffb504485f0920cfc75a0982a602f824a9a4f4 because some qemu_co_queue_next caller
does not run in a coroutine.
qemu_co_queue_do_restart assume that the caller is a coroutinne....
fc5d3f84 07/26/2013 11:01 pm Ian Main

Implement sync modes for drive-backup.

This patch adds sync-modes to the drive-backup interface and
implements the FULL, NONE and TOP modes of synchronization.

FULL performs as before copying the entire contents of the drive
while preserving the point-in-time using CoW....
dcc772e2 07/19/2013 07:29 am Liu Ping Fan

QEMUBH: make AioContext's bh re-entrant

BH will be used outside big lock, so introduce lock to protect
between the writers, ie, bh's adders and deleter. The lock only
affects the writers and bh's callback does not take this extra lock.
Note that for the same AioContext, aio_bh_poll() can not run in...
4105eaaa 07/19/2013 07:29 am Peter Lieven

block: add bdrv_write_zeroes()

Signed-off-by: Peter Lieven <>
Reviewed-by: Kevin Wolf <>
Signed-off-by: Stefan Hajnoczi <>
f0f0fdfe 07/15/2013 10:51 am Kevin Wolf

block: Add return value for bdrv_flush_all()

bdrv_flush() can fail, and bdrv_flush_all() should return an error as
well if this happens for a block device. It returns the first error
return now, but still at least tries to flush the remaining devices even...
98289620 07/15/2013 10:49 am Kevin Wolf

block: Don't parse protocol from file.filename

One of the major reasons for doing something new for -blockdev and
blockdev-add was that the old block layer code parses filenames instead
of just taking them literally. So we should really leave it untouched...
3ac21627 06/28/2013 02:52 pm Peter Lieven

block: change default of .has_zero_init to 0

.has_zero_init defaults to 1 for all formats and protocols.

this is a dangerous default since this means that all
new added drivers need to manually overwrite it to 0 if
they do not ensure that a device is zero initialized...
d616b224 06/28/2013 10:20 am Stefan Hajnoczi

block: add bdrv_add_before_write_notifier()

The bdrv_add_before_write_notifier() function installs a callback that
is invoked before a write request is processed. This will be used to
implement copy-on-write point-in-time snapshots where we need to copy...
98d2c6f2 06/28/2013 10:20 am Dietmar Maurer

block: add basic backup support to block driver

backup_start() creates a block job that copies a point-in-time snapshot
of a block device to a target block device.

We call backup_do_cow() for each write during backup. That function
reads the original data from the block device before it gets...
9f05d0c3 06/27/2013 03:38 am Michael R. Hines

rdma: export yield_until_fd_readable()

The RDMA event channel can be made non-blocking just like a TCP
socket. Exporting this function allows us to yield so that the
QEMU monitor remains available.

Reviewed-by: Juan Quintela <>
Reviewed-by: Paolo Bonzini <>...

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