dirty-bitmap: Avoid size query failure during truncate

We've previously fixed several places where we failed to account
for possible errors from bdrv_nb_sectors(). Fix another one by
making bdrv_di

dirty-bitmap: Avoid size query failure during truncate

We've previously fixed several places where we failed to account
for possible errors from bdrv_nb_sectors(). Fix another one by
making bdrv_dirty_bitmap_truncate() take the new size from the
caller instead of querying itself; then adjust the sole caller
bdrv_truncate() to pass the size just determined by a successful
resize, or to reuse the size given to the original truncate
operation when refresh_total_sectors() was not able to confirm the
actual size (the two sizes can potentially differ according to
rounding constraints), thus avoiding sizing the bitmaps to -1.
This also fixes a bug where not all failure paths in
bdrv_truncate() would set errp.

Note that bdrv_truncate() is still a bit awkward. We may want
to revisit it later and clean up things to better guarantee that
a resize attempt either fails cleanly up front, or cannot fail
after guest-visible changes have been made (if temporary changes
are made, then they need to be cleanly rolled back). But that
is a task for another day; for now, the goal is the bare minimum
fix to ensure that just bdrv_dirty_bitmap_truncate() cannot fail.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

dirty-bitmap: Drop unused functions

We had several functions that no one is currently using, and which
use sector-based interfaces. I'm trying to convert towards byte-based
interfaces, so it's easi

dirty-bitmap: Drop unused functions

We had several functions that no one is currently using, and which
use sector-based interfaces. I'm trying to convert towards byte-based
interfaces, so it's easier to just drop the unused functions:

bdrv_dirty_bitmap_get_meta
bdrv_dirty_bitmap_get_meta_locked
bdrv_dirty_bitmap_reset_meta
bdrv_dirty_bitmap_meta_granularity

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2017-07-11' into staging

Block layer patches

# gpg: Signature made Tue 11 Jul 2017 17:05:56 BST
# gpg: using RSA key 0x

Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2017-07-11' into staging

Block layer patches

# gpg: Signature made Tue 11 Jul 2017 17:05:56 BST
# gpg: using RSA key 0xF407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40

* remotes/maxreitz/tags/pull-block-2017-07-11: (85 commits)
iotests: Add preallocated growth test for qcow2
iotests: Add preallocated resize test for raw
block/qcow2: falloc/full preallocating growth
block/qcow2: Rename "fail_block" to just "fail"
block/qcow2: Add qcow2_refcount_area()
block/qcow2: Metadata preallocation for truncate
block/qcow2: Lock s->lock in preallocate()
block/qcow2: Generalize preallocate()
block/file-posix: Preallocation for truncate
block/file-posix: Generalize raw_regular_truncate
block/file-posix: Extract raw_regular_truncate()
block/file-posix: Small fixes in raw_create()
qemu-img: Expose PreallocMode for resizing
block: Add PreallocMode to blk_truncate()
block: Add PreallocMode to bdrv_truncate()
block: Add PreallocMode to BD.bdrv_truncate()
iotests: add test 178 for qemu-img measure
qemu-iotests: support per-format golden output files
qemu-img: add measure subcommand
qcow2: add bdrv_measure() support
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

block: release persistent bitmaps on inactivate

We should release them here to reload on invalidate cache.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Re

block: release persistent bitmaps on inactivate

We should release them here to reload on invalidate cache.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170628120530.31251-31-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block/dirty-bitmap: add bdrv_remove_persistent_dirty_bitmap

Interface for removing persistent bitmap from its storage.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewe

block/dirty-bitmap: add bdrv_remove_persistent_dirty_bitmap

Interface for removing persistent bitmap from its storage.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170628120530.31251-28-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

qmp: add x-debug-block-dirty-bitmap-sha256

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-26-vsementsov@virtuozzo.com
Signed-off-by: Max Reit

qmp: add x-debug-block-dirty-bitmap-sha256

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-26-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block/dirty-bitmap: add bdrv_dirty_bitmap_next()

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redha

block/dirty-bitmap: add bdrv_dirty_bitmap_next()

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170628120530.31251-19-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block: introduce persistent dirty bitmaps

New field BdrvDirtyBitmap.persistent means, that bitmap should be saved
by format driver in .bdrv_close and .bdrv_inactivate. No format driver
supports it f

block: introduce persistent dirty bitmaps

New field BdrvDirtyBitmap.persistent means, that bitmap should be saved
by format driver in .bdrv_close and .bdrv_inactivate. No format driver
supports it for now.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-18-vsementsov@virtuozzo.com
[mreitz: Fixed indentation]
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block/dirty-bitmap: add autoload field to BdrvDirtyBitmap

Mirror AUTO flag from Qcow2 bitmap in BdrvDirtyBitmap. This will be
needed in future, to save this flag back to Qcow2 for persistent
bitmaps

block/dirty-bitmap: add autoload field to BdrvDirtyBitmap

Mirror AUTO flag from Qcow2 bitmap in BdrvDirtyBitmap. This will be
needed in future, to save this flag back to Qcow2 for persistent
bitmaps.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-16-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block/dirty-bitmap: add readonly field to BdrvDirtyBitmap

It will be needed in following commits for persistent bitmaps.
If bitmap is loaded from read-only storage (and we can't mark it
"in use" in

block/dirty-bitmap: add readonly field to BdrvDirtyBitmap

It will be needed in following commits for persistent bitmaps.
If bitmap is loaded from read-only storage (and we can't mark it
"in use" in this storage) corresponding BdrvDirtyBitmap should be
read-only.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-11-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block/dirty-bitmap: add deserialize_ones func

Add bdrv_dirty_bitmap_deserialize_ones() function, which is needed for
qcow2 bitmap loading, to handle unallocated bitmap parts, marked as
all-ones.

Si

block/dirty-bitmap: add deserialize_ones func

Add bdrv_dirty_bitmap_deserialize_ones() function, which is needed for
qcow2 bitmap loading, to handle unallocated bitmap parts, marked as
all-ones.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20170628120530.31251-7-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block: fix bdrv_dirty_bitmap_granularity signature

Make getter signature const-correct. This allows other functions with
const dirty bitmap parameter use bdrv_dirty_bitmap_granularity().

Signed-off

block: fix bdrv_dirty_bitmap_granularity signature

Make getter signature const-correct. This allows other functions with
const dirty bitmap parameter use bdrv_dirty_bitmap_granularity().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 20170628120530.31251-6-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/famz/tags/docker-and-block-pull-request' into staging

# gpg: Signature made Fri 16 Jun 2017 01:18:46 BST
# gpg: using RSA key 0xCA35624C6A9171C6

Merge remote-tracking branch 'remotes/famz/tags/docker-and-block-pull-request' into staging

# gpg: Signature made Fri 16 Jun 2017 01:18:46 BST
# gpg: using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6

* remotes/famz/tags/docker-and-block-pull-request: (23 commits)
block: make accounting thread-safe
block: split BlockAcctStats creation and setup
block: introduce block_account_one_io
block: protect modification of dirty bitmaps with a mutex
migration/block: reset dirty bitmap before reading
block: introduce dirty_bitmap_mutex
block: protect tracked_requests and flush_queue with reqs_lock
block: access write_gen with atomics
block: use Stat64 for wr_highest_offset
util: add stats64 module
throttle-groups: protect throttled requests with a CoMutex
throttle-groups: do not use qemu_co_enter_next
throttle-groups: only start one coroutine from drained_begin
block: access io_plugged with atomic ops
block: access wakeup with atomic ops
block: access serialising_in_flight with atomic ops
block: access io_limits_disabled with atomic ops
block: access quiesce_counter with atomic ops
block: access copy_on_read with atomic ops
docker: Add flex and bison to centos6 image
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

block: protect modification of dirty bitmaps with a mutex

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170605123908.18777-17-p

block: protect modification of dirty bitmaps with a mutex

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20170605123908.18777-17-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 24 Oct 2016 17:02:47 BST
# gpg: using RSA key 0x7F09B272C88F

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 24 Oct 2016 17:02:47 BST
# gpg: using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (23 commits)
block/replication: Clarify 'top-id' parameter usage
block: More operations for meta dirty bitmap
tests: Add test code for hbitmap serialization
block: BdrvDirtyBitmap serialization interface
hbitmap: serialization
block: Assert that bdrv_release_dirty_bitmap succeeded
block: Add two dirty bitmap getters
block: Support meta dirty bitmap
tests: Add test code for meta bitmap
HBitmap: Introduce "meta" bitmap to track bit changes
block: Hide HBitmap in block dirty bitmap interface
quorum: do not allocate multiple iovecs for FIFO strategy
quorum: change child_iter to children_read
iotests: Do not rely on unavailable domains in 162
iotests: Remove raciness from 162
qemu-nbd: Add --fork option
qemu-iotests: Test I/O in a single drive from a throttling group
throttle: Correct access to wrong BlockBackendPublic structures
qapi: fix memory leak in bdrv_image_info_specific_dump
block: improve error handling in raw_open
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Merge remote-tracking branch 'mreitz/tags/pull-block-2016-10-24' into queue-block

Block patches for master

# gpg: Signature made Mon Oct 24 17:56:44 2016 CEST
# gpg: using RSA key 0x

Merge remote-tracking branch 'mreitz/tags/pull-block-2016-10-24' into queue-block

Block patches for master

# gpg: Signature made Mon Oct 24 17:56:44 2016 CEST
# gpg: using RSA key 0xF407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40

* mreitz/tags/pull-block-2016-10-24:
block/replication: Clarify 'top-id' parameter usage
block: More operations for meta dirty bitmap
tests: Add test code for hbitmap serialization
block: BdrvDirtyBitmap serialization interface
hbitmap: serialization
block: Assert that bdrv_release_dirty_bitmap succeeded
block: Add two dirty bitmap getters
block: Support meta dirty bitmap
tests: Add test code for meta bitmap
HBitmap: Introduce "meta" bitmap to track bit changes
block: Hide HBitmap in block dirty bitmap interface
quorum: do not allocate multiple iovecs for FIFO strategy
quorum: change child_iter to children_read

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...

block: More operations for meta dirty bitmap

Callers can create an iterator of meta bitmap with
bdrv_dirty_meta_iter_new(), then use the bdrv_dirty_iter_* operations on
it. Meta iterators are also c

block: More operations for meta dirty bitmap

Callers can create an iterator of meta bitmap with
bdrv_dirty_meta_iter_new(), then use the bdrv_dirty_iter_* operations on
it. Meta iterators are also counted by bitmap->active_iterators.

Also add a couple of functions to retrieve granularity and count.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-11-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block: BdrvDirtyBitmap serialization interface

Several functions to provide necessary access to BdrvDirtyBitmap for
block-migration.c

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuoz

block: BdrvDirtyBitmap serialization interface

Several functions to provide necessary access to BdrvDirtyBitmap for
block-migration.c

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[Add the "finish" parameters. - Fam]
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-9-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block: Add two dirty bitmap getters

For dirty bitmap users to get the size and the name of a
BdrvDirtyBitmap.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Re

block: Add two dirty bitmap getters

For dirty bitmap users to get the size and the name of a
BdrvDirtyBitmap.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-6-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block: Support meta dirty bitmap

The added group of operations enables tracking of the changed bits in
the dirty bitmap.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@re

block: Support meta dirty bitmap

The added group of operations enables tracking of the changed bits in
the dirty bitmap.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-5-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

block: Hide HBitmap in block dirty bitmap interface

HBitmap is an implementation detail of block dirty bitmap that should be hidden
from users. Introduce a BdrvDirtyBitmapIter to encapsulate the und

block: Hide HBitmap in block dirty bitmap interface

HBitmap is an implementation detail of block dirty bitmap that should be hidden
from users. Introduce a BdrvDirtyBitmapIter to encapsulate the underlying
HBitmapIter.

A small difference in the interface is, before, an HBitmapIter is initialized
in place, now the new BdrvDirtyBitmapIter must be dynamically allocated because
the structure definition is in block/dirty-bitmap.c.

Two current users are converted too.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1476395910-8697-2-git-send-email-jsnow@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging

# gpg: Signature made Wed 20 Jul 2016 01:18:39 BST
# gpg: using RSA key 0xBDBE7B27C0DE3057
# gpg: Good

Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging

# gpg: Signature made Wed 20 Jul 2016 01:18:39 BST
# gpg: using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg: aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg: aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057

* remotes/cody/tags/block-pull-request:
block/gluster: add support for multiple gluster servers
block/gluster: using new qapi schema
block/gluster: deprecate rdma support
block/gluster: code cleanup
block/gluster: rename [server, volname, image] -> [host, volume, path]
mirror: fix request throttling in drive-mirror
mirror: improve performance of mirroring of empty disk
mirror: efficiently zero out target
mirror: optimize dirty bitmap filling in mirror_run a bit
block: remove extra condition in bdrv_can_write_zeroes_with_unmap
mirror: create mirror_dirty_init helper for mirror_run
mirror: create mirror_throttle helper
mirror: make sectors_in_flight int64_t
dirty-bitmap: operate with int64_t amount

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

dirty-bitmap: operate with int64_t amount

Underlying HBitmap operates even with uint64_t. Thus this change is safe.
This would be useful f.e. to mark entire bitmap dirty in one call.

Signed-off-by:

dirty-bitmap: operate with int64_t amount

Underlying HBitmap operates even with uint64_t. Thus this change is safe.
This would be useful f.e. to mark entire bitmap dirty in one call.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1468503209-19498-2-git-send-email-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Jeff Cody <jcody@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>

show more ...

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 14 Mar 2016 16:36:52 GMT using RSA key ID C88F2FD6
# gpg: Good signature fr

Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 14 Mar 2016 16:36:52 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (40 commits)
iotests: Add test for QMP event rates
monitor: Use QEMU_CLOCK_VIRTUAL for the event queue in qtest mode
monitor: Separate QUORUM_REPORT_BAD events according to the node name
quorum: Fix crash in quorum_aio_cb()
iotests: Correct 081's reference output
block: Remove unused typedef of BlockDriverDirtyHandler
block: Move block dirty bitmap code to separate files
typedefs: Add BdrvDirtyBitmap
block: Include hbitmap.h in block.h
backup: Use Bitmap to replace "s->bitmap"
vpc: Use BB functions in .bdrv_create()
vmdk: Use BB functions in .bdrv_create()
vhdx: Use BB functions in .bdrv_create()
vdi: Use BB functions in .bdrv_create()
sheepdog: Use BB functions in .bdrv_create()
qed: Use BB functions in .bdrv_create()
qcow2: Use BB functions in .bdrv_create()
qcow: Use BB functions in .bdrv_create()
parallels: Use BB functions in .bdrv_create()
block: Introduce blk_set_allow_write_beyond_eof()
...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

show more ...

Merge remote-tracking branch 'mreitz/tags/pull-block-for-kevin-2016-03-14-v2' into queue-block

Block patches for pi day, v2.

# gpg: Signature made Mon Mar 14 17:35:29 2016 CET using RSA key ID E838

Merge remote-tracking branch 'mreitz/tags/pull-block-for-kevin-2016-03-14-v2' into queue-block

Block patches for pi day, v2.

# gpg: Signature made Mon Mar 14 17:35:29 2016 CET using RSA key ID E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"

* mreitz/tags/pull-block-for-kevin-2016-03-14-v2:
iotests: Add test for QMP event rates
monitor: Use QEMU_CLOCK_VIRTUAL for the event queue in qtest mode
monitor: Separate QUORUM_REPORT_BAD events according to the node name
quorum: Fix crash in quorum_aio_cb()
iotests: Correct 081's reference output
block: Remove unused typedef of BlockDriverDirtyHandler
block: Move block dirty bitmap code to separate files
typedefs: Add BdrvDirtyBitmap
block: Include hbitmap.h in block.h
backup: Use Bitmap to replace "s->bitmap"

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

show more ...